Class: Aws::CloudWatchEvents::Types::Target
| Relationships & Source Files | |
| Super Chains via Extension / Inclusion / Inheritance | |
|
Class Chain:
self,
Struct
|
|
|
Instance Chain:
self,
::Aws::Structure ,
Struct
|
|
| Inherits: |
Struct
|
| Defined in: | gems/aws-sdk-cloudwatchevents/lib/aws-sdk-cloudwatchevents/types.rb |
Overview
Targets are the resources to be invoked when a rule is triggered. For a complete list of services and resources that can be set as a target, see PutTargets.
If you are setting the event bus of another account as the target, and
that account granted permission to your account through an
organization instead of directly by the account ID, then you must
specify a RoleArn
with proper permissions in the Target
structure.
For more information, see Sending and Receiving Events Between Amazon
Web Services Accounts in the Amazon ::Aws::EventBridge
User Guide.
Constant Summary
Instance Attribute Summary
-
#arn ⇒ String
rw
The Amazon
::Aws::CloudWatchEvents::Resource
Name (ARN) of the target. -
#batch_parameters ⇒ Types::BatchParameters
rw
If the event target is an
::Aws::Batch
job, this contains the job definition, job name, and other parameters. -
#dead_letter_config ⇒ Types::DeadLetterConfig
rw
The
DeadLetterConfig
that defines the target queue to send dead-letter queue events to. -
#ecs_parameters ⇒ Types::EcsParameters
rw
Contains the Amazon ECS task definition and task count to be used, if the event target is an Amazon ECS task.
-
#http_parameters ⇒ Types::HttpParameters
rw
Contains the HTTP parameters to use when the target is a API Gateway REST endpoint or
::Aws::EventBridge
ApiDestination. -
#id ⇒ String
rw
The ID of the target.
-
#input ⇒ String
rw
Valid JSON text passed to the target.
-
#input_path ⇒ String
rw
The value of the JSONPath that is used for extracting part of the matched event when passing it to the target.
-
#input_transformer ⇒ Types::InputTransformer
rw
Settings to enable you to provide custom input to a target based on certain event data.
-
#kinesis_parameters ⇒ Types::KinesisParameters
rw
The custom parameter you can use to control the shard assignment, when the target is a
::Aws::Kinesis
data stream. -
#redshift_data_parameters ⇒ Types::RedshiftDataParameters
rw
Contains the Amazon Redshift Data API parameters to use when the target is a Amazon Redshift cluster.
-
#retry_policy ⇒ Types::RetryPolicy
rw
The
RetryPolicy
object that contains the retry policy configuration to use for the dead-letter queue. -
#role_arn ⇒ String
rw
The Amazon
::Aws::CloudWatchEvents::Resource
Name (ARN) of the::Aws::IAM
role to be used for this target when the rule is triggered. -
#run_command_parameters ⇒ Types::RunCommandParameters
rw
Parameters used when you are using the rule to invoke Amazon EC2 Run Command.
-
#sage_maker_pipeline_parameters ⇒ Types::SageMakerPipelineParameters
rw
Contains the
::Aws::SageMaker
Model Building Pipeline parameters to start execution of a::Aws::SageMaker
Model Building Pipeline. -
#sqs_parameters ⇒ Types::SqsParameters
rw
Contains the message group ID to use when the target is a FIFO queue.
Instance Method Summary
::Aws::Structure
- Included
| #to_hash | Alias for Structure#to_h. |
Instance Attribute Details
#arn ⇒ String
(rw)
The Amazon ::Aws::CloudWatchEvents::Resource
Name (ARN) of the target.
# File 'gems/aws-sdk-cloudwatchevents/lib/aws-sdk-cloudwatchevents/types.rb', line 3968
class Target < Struct.new( :id, :arn, :role_arn, :input, :input_path, :input_transformer, :kinesis_parameters, :run_command_parameters, :ecs_parameters, :batch_parameters, :sqs_parameters, :http_parameters, :redshift_data_parameters, :sage_maker_pipeline_parameters, :dead_letter_config, :retry_policy) SENSITIVE = [] include Aws::Structure end
#batch_parameters ⇒ Types::BatchParameters (rw)
If the event target is an ::Aws::Batch
job, this contains the job
definition, job name, and other parameters. For more information,
see Jobs in the Batch User Guide.
# File 'gems/aws-sdk-cloudwatchevents/lib/aws-sdk-cloudwatchevents/types.rb', line 3968
class Target < Struct.new( :id, :arn, :role_arn, :input, :input_path, :input_transformer, :kinesis_parameters, :run_command_parameters, :ecs_parameters, :batch_parameters, :sqs_parameters, :http_parameters, :redshift_data_parameters, :sage_maker_pipeline_parameters, :dead_letter_config, :retry_policy) SENSITIVE = [] include Aws::Structure end
#dead_letter_config ⇒ Types::DeadLetterConfig (rw)
The DeadLetterConfig
that defines the target queue to send
dead-letter queue events to.
# File 'gems/aws-sdk-cloudwatchevents/lib/aws-sdk-cloudwatchevents/types.rb', line 3968
class Target < Struct.new( :id, :arn, :role_arn, :input, :input_path, :input_transformer, :kinesis_parameters, :run_command_parameters, :ecs_parameters, :batch_parameters, :sqs_parameters, :http_parameters, :redshift_data_parameters, :sage_maker_pipeline_parameters, :dead_letter_config, :retry_policy) SENSITIVE = [] include Aws::Structure end
#ecs_parameters ⇒ Types::EcsParameters (rw)
Contains the Amazon ECS task definition and task count to be used,
if the event target is an Amazon ECS task. For more information
about Amazon ECS tasks, see Task Definitions in the Amazon
::Aws::EC2
Container Service Developer Guide.
# File 'gems/aws-sdk-cloudwatchevents/lib/aws-sdk-cloudwatchevents/types.rb', line 3968
class Target < Struct.new( :id, :arn, :role_arn, :input, :input_path, :input_transformer, :kinesis_parameters, :run_command_parameters, :ecs_parameters, :batch_parameters, :sqs_parameters, :http_parameters, :redshift_data_parameters, :sage_maker_pipeline_parameters, :dead_letter_config, :retry_policy) SENSITIVE = [] include Aws::Structure end
#http_parameters ⇒ Types::HttpParameters (rw)
Contains the HTTP parameters to use when the target is a API Gateway
REST endpoint or ::Aws::EventBridge
ApiDestination.
If you specify an API Gateway REST API or ::Aws::EventBridge
ApiDestination
as a target, you can use this parameter to specify headers, path
parameters, and query string keys/values as part of your target
invoking request. If you're using ApiDestinations, the
corresponding Connection
can also have these values configured. In
case of any conflicting keys, values from the Connection
take
precedence.
# File 'gems/aws-sdk-cloudwatchevents/lib/aws-sdk-cloudwatchevents/types.rb', line 3968
class Target < Struct.new( :id, :arn, :role_arn, :input, :input_path, :input_transformer, :kinesis_parameters, :run_command_parameters, :ecs_parameters, :batch_parameters, :sqs_parameters, :http_parameters, :redshift_data_parameters, :sage_maker_pipeline_parameters, :dead_letter_config, :retry_policy) SENSITIVE = [] include Aws::Structure end
#id ⇒ String
(rw)
The ID of the target. We recommend using a memorable and unique string.
# File 'gems/aws-sdk-cloudwatchevents/lib/aws-sdk-cloudwatchevents/types.rb', line 3968
class Target < Struct.new( :id, :arn, :role_arn, :input, :input_path, :input_transformer, :kinesis_parameters, :run_command_parameters, :ecs_parameters, :batch_parameters, :sqs_parameters, :http_parameters, :redshift_data_parameters, :sage_maker_pipeline_parameters, :dead_letter_config, :retry_policy) SENSITIVE = [] include Aws::Structure end
#input ⇒ String
(rw)
Valid JSON text passed to the target. In this case, nothing from the event itself is passed to the target. For more information, see The JavaScript Object Notation (JSON) Data Interchange Format.
# File 'gems/aws-sdk-cloudwatchevents/lib/aws-sdk-cloudwatchevents/types.rb', line 3968
class Target < Struct.new( :id, :arn, :role_arn, :input, :input_path, :input_transformer, :kinesis_parameters, :run_command_parameters, :ecs_parameters, :batch_parameters, :sqs_parameters, :http_parameters, :redshift_data_parameters, :sage_maker_pipeline_parameters, :dead_letter_config, :retry_policy) SENSITIVE = [] include Aws::Structure end
#input_path ⇒ String
(rw)
The value of the JSONPath that is used for extracting part of the matched event when passing it to the target. You must use JSON dot notation, not bracket notation. For more information about JSON paths, see JSONPath.
# File 'gems/aws-sdk-cloudwatchevents/lib/aws-sdk-cloudwatchevents/types.rb', line 3968
class Target < Struct.new( :id, :arn, :role_arn, :input, :input_path, :input_transformer, :kinesis_parameters, :run_command_parameters, :ecs_parameters, :batch_parameters, :sqs_parameters, :http_parameters, :redshift_data_parameters, :sage_maker_pipeline_parameters, :dead_letter_config, :retry_policy) SENSITIVE = [] include Aws::Structure end
#input_transformer ⇒ Types::InputTransformer (rw)
Settings to enable you to provide custom input to a target based on certain event data. You can extract one or more key-value pairs from the event and then use that data to send customized input to the target.
# File 'gems/aws-sdk-cloudwatchevents/lib/aws-sdk-cloudwatchevents/types.rb', line 3968
class Target < Struct.new( :id, :arn, :role_arn, :input, :input_path, :input_transformer, :kinesis_parameters, :run_command_parameters, :ecs_parameters, :batch_parameters, :sqs_parameters, :http_parameters, :redshift_data_parameters, :sage_maker_pipeline_parameters, :dead_letter_config, :retry_policy) SENSITIVE = [] include Aws::Structure end
#kinesis_parameters ⇒ Types::KinesisParameters (rw)
The custom parameter you can use to control the shard assignment,
when the target is a ::Aws::Kinesis
data stream. If you do not include this
parameter, the default is to use the eventId
as the partition key.
# File 'gems/aws-sdk-cloudwatchevents/lib/aws-sdk-cloudwatchevents/types.rb', line 3968
class Target < Struct.new( :id, :arn, :role_arn, :input, :input_path, :input_transformer, :kinesis_parameters, :run_command_parameters, :ecs_parameters, :batch_parameters, :sqs_parameters, :http_parameters, :redshift_data_parameters, :sage_maker_pipeline_parameters, :dead_letter_config, :retry_policy) SENSITIVE = [] include Aws::Structure end
#redshift_data_parameters ⇒ Types::RedshiftDataParameters (rw)
Contains the Amazon Redshift Data API parameters to use when the target is a Amazon Redshift cluster.
If you specify a Amazon Redshift Cluster as a Target
, you can use
this to specify parameters to invoke the Amazon Redshift Data API
ExecuteStatement based on ::Aws::EventBridge
events.
# File 'gems/aws-sdk-cloudwatchevents/lib/aws-sdk-cloudwatchevents/types.rb', line 3968
class Target < Struct.new( :id, :arn, :role_arn, :input, :input_path, :input_transformer, :kinesis_parameters, :run_command_parameters, :ecs_parameters, :batch_parameters, :sqs_parameters, :http_parameters, :redshift_data_parameters, :sage_maker_pipeline_parameters, :dead_letter_config, :retry_policy) SENSITIVE = [] include Aws::Structure end
#retry_policy ⇒ Types::RetryPolicy (rw)
The RetryPolicy
object that contains the retry policy
configuration to use for the dead-letter queue.
# File 'gems/aws-sdk-cloudwatchevents/lib/aws-sdk-cloudwatchevents/types.rb', line 3968
class Target < Struct.new( :id, :arn, :role_arn, :input, :input_path, :input_transformer, :kinesis_parameters, :run_command_parameters, :ecs_parameters, :batch_parameters, :sqs_parameters, :http_parameters, :redshift_data_parameters, :sage_maker_pipeline_parameters, :dead_letter_config, :retry_policy) SENSITIVE = [] include Aws::Structure end
#role_arn ⇒ String
(rw)
The Amazon ::Aws::CloudWatchEvents::Resource
Name (ARN) of the ::Aws::IAM
role to be used for this
target when the rule is triggered. If one rule triggers multiple
targets, you can use a different ::Aws::IAM
role for each target.
# File 'gems/aws-sdk-cloudwatchevents/lib/aws-sdk-cloudwatchevents/types.rb', line 3968
class Target < Struct.new( :id, :arn, :role_arn, :input, :input_path, :input_transformer, :kinesis_parameters, :run_command_parameters, :ecs_parameters, :batch_parameters, :sqs_parameters, :http_parameters, :redshift_data_parameters, :sage_maker_pipeline_parameters, :dead_letter_config, :retry_policy) SENSITIVE = [] include Aws::Structure end
#run_command_parameters ⇒ Types::RunCommandParameters (rw)
Parameters used when you are using the rule to invoke Amazon EC2 Run Command.
# File 'gems/aws-sdk-cloudwatchevents/lib/aws-sdk-cloudwatchevents/types.rb', line 3968
class Target < Struct.new( :id, :arn, :role_arn, :input, :input_path, :input_transformer, :kinesis_parameters, :run_command_parameters, :ecs_parameters, :batch_parameters, :sqs_parameters, :http_parameters, :redshift_data_parameters, :sage_maker_pipeline_parameters, :dead_letter_config, :retry_policy) SENSITIVE = [] include Aws::Structure end
#sage_maker_pipeline_parameters ⇒ Types::SageMakerPipelineParameters (rw)
Contains the ::Aws::SageMaker
Model Building Pipeline parameters to start
execution of a ::Aws::SageMaker
Model Building Pipeline.
If you specify a ::Aws::SageMaker
Model Building Pipeline as a target, you
can use this to specify parameters to start a pipeline execution
based on ::Aws::EventBridge
events.
# File 'gems/aws-sdk-cloudwatchevents/lib/aws-sdk-cloudwatchevents/types.rb', line 3968
class Target < Struct.new( :id, :arn, :role_arn, :input, :input_path, :input_transformer, :kinesis_parameters, :run_command_parameters, :ecs_parameters, :batch_parameters, :sqs_parameters, :http_parameters, :redshift_data_parameters, :sage_maker_pipeline_parameters, :dead_letter_config, :retry_policy) SENSITIVE = [] include Aws::Structure end
#sqs_parameters ⇒ Types::SqsParameters (rw)
Contains the message group ID to use when the target is a FIFO queue.
If you specify an ::Aws::SQS
FIFO queue as a target, the queue must have
content-based deduplication enabled.
# File 'gems/aws-sdk-cloudwatchevents/lib/aws-sdk-cloudwatchevents/types.rb', line 3968
class Target < Struct.new( :id, :arn, :role_arn, :input, :input_path, :input_transformer, :kinesis_parameters, :run_command_parameters, :ecs_parameters, :batch_parameters, :sqs_parameters, :http_parameters, :redshift_data_parameters, :sage_maker_pipeline_parameters, :dead_letter_config, :retry_policy) SENSITIVE = [] include Aws::Structure end


Show: All Done Pending {% if review.quality_assessment_cutoff_score > 0.0 %} Score higher than {{ review.quality_assessment_cutoff_score }} Score lower or equal to {{ review.quality_assessment_cutoff_score }} {% endif %}
To answer the form you may click on the desired answer on the following tables.


pip_services3_commons.errors.ErrorCategory module
pip_services3_commons.errors.ErrorCategory
Error categories enumeration
- copyright
Conceptual Vision Consulting LLC 2018-2019, see AUTHORS for more details.
- license
MIT, see LICENSE for more details.
-
class
pip_services3_commons.errors.ErrorCategory.
ErrorCategory
Bases:
object
Defines standard error categories to application exceptions supported by PipServices toolkit.
-
BadRequest
: str = 'BadRequest' Errors due to improper user requests, like missing or wrong parameters
-
Conflict
: str = 'Conflict' Errors raised by conflict in object versions posted by user and stored on server.
-
FailedInvocation
: str = 'FailedInvocation' Errors returned by remote services or network during call attempts
-
InvalidState
: str = 'InvalidState' Errors related to operations called in wrong component state. For instance, business calls when component is not ready
-
Misconfiguration
: str = 'Misconfiguration' Errors related to mistakes in user-defined configuration
-
NoResponse
: str = 'NoResponse' Errors happened during connection to remote services. They can be related to misconfiguration, network issues or remote service itself
Access errors caused by missing user identity or security permissions
-


Baja Prerunner Porsche 911 Looks Bonkers And It’s Somehow Road-Legal
Holy suspension travel Batman.
by Christopher SmithWe’ve never been shy at Motor1.com about our extreme passion for off-road Porsche 911 builds. We’ve certainly seen all kinds of Baja-themed 911s over the years, but we’ve never seen anything quite like this. Once upon a time, this was a 1991 911 Carrera 4 Cabriolet.
Playing Dirty With Porsche:
TJ Russell is the builder of this bonkers Porsche and you can easily tell, this isn’t simply a 911 with a suspension lift and knobby tires. This is a straight-up Baja Prerunner with insane suspension travel and a stance that would make even the widest aftermarket widebody kit for sports cars seem pale by comparison. According to the video interview from AutotopiaLA on YouTube, Russell spent over a year working on this project full-time, including designing and fabricating the vast majority of upgrades seen in this car.
Gallery: Russell Baja Porsche 911
Obviously the suspension is what makes this machine different than any other Baja-themed 911. The Porsche’s stock mounting points in the rear are used, but all the components save for the coilovers, hubs, and brakes are custom designed by Russell. Incorporating coilovers up front basically required building an entire sub-assembly, and the end result is 12 inches of suspension travel in the front, and 14 inches at the rear. So yeah, this 911 fears no jump, never mind potholes.
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The suspension work also widened the car a total of 14 inches, but to keep the 911’s balance and weight distribution in check, Russell moved the rear wheels back two inches, and the front wheels forward by an inch. The 911’s overall shape isn’t stretched, but the longer wheelbase helps preserve the 911’s rear-engined handling characteristics. And with 365 horsepower available in the Carrera’s fully built flat-six, it looks quite lively indeed.
Speaking of which, the car is designed to dominate off-road and on-road conditions. Obviously it’s not ready to corner carve on pavement like a standard 911, but it was purpose-built to be a dual-role, street-legal machine. It’s also not a one-off project – parts are available and the design of the car actually makes replacing items rather easy. Yes, that means interested buyers could order up a Prerunner Baja 911 from Russell, and according to the video, he’s prepared to assemble these custom projects and provide replacement parts in the event a buyer has a bit too much fun in the desert.
We know what you’re thinking at this point, but we don’t know how much it will cost to have a Prerunner 911 of your own. All we do know is we really want one.
Source: AutotopiaLA via YouTube


When I was young man, 30 plus years ago, we called this good breeding and manners. The building of trust and sincerity came through the customs and traditions of society and acting them out through conventional socialisation processes. In those times, people didn't obsess about building trust and sincerity as they were too busy living their lives and letting such matters take their natural course. You can't even hope to build enduring trust or sincerity in an artifical manner. The stuff we see so much of in the world today is nothing more than superficial decoration that covers festering misery.
Marc Lesser states five techniques for building trust and sincerity within a group:
This is where my personal life experiences come in to play, including managing diverse groups of people within workplaces. I'd say there are several features to organically growing trust and sincereity within you team, and these are:
Empathy listening for me is just plain listening. I'd consider it rude pretend to listen to people without putting yourself into their shoes when they are voicing their views and concerns, thoughts and feelings. It's how relationships, built on trust and sincerity endure overs years and decades.
With regard the exercise, I would suggest that the meta-conversation is a tad obsessive.
I found this a good exercise and again it is something that I have endeavoured to practice thoughout my life, hitherto.
Yesterday, I prayed for my wife's happiness with a job interview she attended. I also prayed for happiness for the interviewers. It was a happy interview.
I frequently pray for happiness and understanding prior to making big choices, and for others who are also faced with making a big choices.
I'd prefer to keep my experiences and thoughts private.
 But maybe that's because I'm older than most of the people on the course. I grew up in a different era.


Loading animation - Android Lollipop style
Replication of Andriod (Material Design) loading/progress animation style using pure CSS


forcing methane shortwave HITRAN absorption radiative calculations optical climate using atmospheric model W/m surface used {border-style global mean Jovian line px;} spectroscopic #ffffff;} Fig. RTMIP data solar conditions spectral Geophys. Spectrosc. depths experiments forcings lines Quant. Radiat. Res. Table Transf. all-sky direct cloud computed Collins models near-infrared J.-M. Smith code concentrations depth parameters set spectra transfer version wave Climate Devi LBL Materials TOA atmosphere based database. denote fluxes increase (see Atmospheric Brown Model Radiative albedo annual change clear-sky clouds compute measurements observations properties px; recent scattering significant updates values {font-family Atmos. Benner CMIP Change Feldman Gamache Methods). Mk-- National Rothman Sung averaged boundary font-size laboratory large parameterization uncertainties value Barbe Boudon CSIRO Campargue Chris Flaud Gordon Jacquemart Lett. MODTRAN Massie Nikitin Perrin Report Research double; effects number numbers path performed resolution respectively. results shown spectroscopy time tropopause tropospheric unadjusted κ(ν, Assessment Auwera Chance INMCM Science Tashkun Tennyson Transfer Tyuterev Vander aerosol-free albedos anthropogenic approximately bands border-color border-width calculated changes combined conditions. database databases empirical features flux greenhouse grid http://dx.doi.org/./ ice include increased increments instantaneous, interannual local lower molecular new obtained paper present-day probability profiles resolved sea sensitivity solid; times tropopause, variability vertical {font-style {font-weight Administration Aeronautics Annual Birk Coudert Earth Earth’s Energy Hartmann However, Intergovernmental Jucks Liu Lyulin Methane Mikhailenko Naumenko OSSE Orphal Panel Perevalov Pilewskie Rinsland Roberts Space Supplementary Taylor added algorithm and, atmospheres available band bold column-integrated courier; differencing direct, em; estimates forcing. formulae functions future http://orcid.org/--- idealized included input insolation lengths levels log magnitude maximum multiple numerical orders original parameterizations planetary point polyad polyads ppbv pt;} radiation range relative resulting shows simulations spectrally state study surface, switch tabulations updated upper versions weighted zenith


Press release
Personal, social, health and economic education needs improvement
'Not yet good enough evaluates' strengths and weaknesses of PSHE education and makes recommendations on how the subject can be taught well.
The report
, which was based on evidence from 50 maintained schools and an online survey of 178 young people, found PSHE education was good or better in 60 per cent of schools but required improvement or was inadequate in 40 per cent.
The ‘Not yet good enough’ report highlights that the weakest aspects of teaching PSHE are the assessment of how well pupils have understood what they are taught and planning for new work. In too many schools, teachers did not check or build on pupils’ previous knowledge, which resulted in them repeating topics. Teachers also had low expectations of the quality of work done by pupils.
In primary schools, the report says, too much emphasis is placed on friendships and relationships when teaching sex and relationships education and this can leave pupils ill-prepared for the physical and emotional changes of puberty. In secondary schools, too much emphasis is placed on the ‘mechanics’ of reproduction rather than on the importance of healthy sexual relationships.
The report also shares several examples of good practice.
The report is published on the Ofsted website and was based on evidence from the inspections of 24 primary schools, 24 secondary schools and two special schools across all English regions between January and July 2012.
Notes to editors
-
The report
‘Personal, social, health and economic education in schools: not yet good enough’
is online.
-
The findings of this report are based on evidence from the inspections of 24 primary schools, 24 secondary schools and two special schools across all English regions between January and July 2012.
-
The findings are supported by a ‘Your Say’ online survey conducted on behalf of Ofsted by Ipsos Mori during October and November 2012 of children and young people’s experiences and opinions of PSHE education. The ‘Your Say’ Children and Young People’s Panel received 178 responses from 11–18-year-olds in state schools and colleges across England.
-
The Office for Standards in Education, Children’s Services and Skills (Ofsted) regulates and inspects to achieve excellence in the care of children and young people, and in education and skills for learners of all ages. It regulates and inspects childcare and children’s social care, and inspects the Children and Family Court Advisory Support Service (Cafcass), schools, colleges, initial teacher training, work-based learning and skills training, adult and community learning, and education and training in prisons and other secure establishments. It assesses council children’s services, and inspects services for looked after children, safeguarding and child protection.


Remote VSCP Server
Description:
There must be a descriptive string.
Server (host:port):
There must be a remote host specified (and port) on the form host:port. Default port 9598.
Username:
Password:
Interface:
Options:
SSL
Full level II
Set filter
Test connection
Get interfaces
Cancel
OK


Select the format from the table below that should be used when the keyboard shortcut is activated.
Default is currently
| Name | Format | Filter |
Filter must be specified in the following format (perl-like substitution operator): s/<pattern>/<replacement>/[<flags>]
Pattern is regular expression and flags are either "g", "i", "m" or "y".
For example, s/\[at\]/@/gi
will replace all occurrences (g) of "[at]/[AT]/[At]/[aT]" case-insensitively (i) into "@".


Here is my
header
Here is my
content area
This is where I live
Here is my
sidebar
Wanna create your own?
Here Ya Go!


Common page, Run or Debug dialog box
The Common page of the Run and Debug dialog boxes lets you specify the location in which to store your run configuration and how you access it, how standard input and output is handled, and if background launches are enabled or not.
| Component | Description |
|---|---|
| Local file | Saves the launch configuration locally. |
| Shared file | Specifies the path of, or browse to, a workspace to store the launch configuration file, and be able to commit it to CVS. |
| Display in favorites menu | Add configuration name to Run or Debug menus for easy selection. |
| Console Encoding | Specify encoding scheme to use for console output. |
| Allocate Console (necessary for input) | Check to assign a console view to receive the output. |
| File | Specify file name to save output. |
| Browse Workspace... | Specifies the path of, or browse to, a workspace to store the output file. |
| Browse File System... | Specifies the path of, or browse to, a file system directory to store the output file. |
| Variables... | Select variables by name to include in the output file. |
| Append | Check to append output. Uncheck to recreate file each time. |
| Launch in background | Check to launch configuration in background mode. |


Angela Dawson
Angela is an optimistic and passionate person who has been making positive contributions to the world for years. For over a decade, she has taught for an online university on the topics of IT and time management, empowering students across the globe. Her desire to partner on do-good projects coupled with her love of numbers naturally led her to CoLab’s accounting position.
In addition to her passion for helping students find their paths to success, Angela is an avid outdoor enthusiast. Whether it’s quality time with her family, hiking, kayaking, dancing, family vacations, swinging on the swings at a playground, attending fairs and festivals, or watching fireworks, every day is an adventure with Angela!
Having lived in cities throughout the U.S., Angela is no stranger to new and exciting experiences. She’s snowshoed in the Cascade Mountains, kayaked in the San Juan Islands (with Orca whales), and hiked Tiger Mountain in the Issaquah Alps.
Currently settled in the beautiful Finger Lakes region with her family, Angela enjoys all the natural amenities upstate New York has to offer: beautiful parks, lakes, gorges, and trails. She is a positive role model for work/life balance, being able to happily devote herself both to her family and to her professional life.
Angela appreciates the balance and flexibility of CoLab, which enables her to raise a young son at home while contributing to good in the world at large. As the saying goes: “Teamwork makes the dream work!”


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java.lang.Object org.apache.tomcat.jdbc.pool.ConnectionPool
public class ConnectionPool
Implementation of simple connection pool.
The ConnectionPool uses a PoolProperties
object for storing all the meta information about the connection pool.
As the underlying implementation, the connection pool uses BlockingQueue
to store active and idle connections.
A custom implementation of a fair FairBlockingQueue
blocking queue is provided with the connection pool itself.
| Nested Class Summary | |
|---|---|
protected class |
ConnectionPool.ConnectionFuture
Tread safe wrapper around a future for the regular queue This one retrieves the pooled connection object and performs the initialization according to interceptors and validation rules. |
protected static class |
ConnectionPool.PoolCleaner
|
| Field Summary | |
|---|---|
private java.util.concurrent.BlockingQueue<PooledConnection> |
busy
Contains all the connections that are in use TODO - this shouldn't be a blocking queue, simply a list to hold our objects |
private java.util.concurrent.ThreadPoolExecutor |
cancellator
Executor service used to cancel Futures |
private static java.util.HashSet<ConnectionPool.PoolCleaner> |
cleaners
|
private boolean |
closed
Pool closed flag |
private java.util.concurrent.BlockingQueue<PooledConnection> |
idle
Contains all the idle connections |
protected ConnectionPool |
jmxPool
reference to the JMX mbean |
private static org.apache.log4j.Logger |
log
Logger |
static java.lang.String |
POOL_JMX_DOMAIN
Default domain for objects registering with an mbean server |
static java.lang.String |
POOL_JMX_TYPE_PREFIX
Prefix type for JMX registration |
private ConnectionPool.PoolCleaner |
poolCleaner
The thread that is responsible for checking abandoned and idle threads |
private static java.util.Timer |
poolCleanTimer
|
private PoolConfiguration |
poolProperties
All the information about the connection pool These are the properties the pool got instantiated with |
private java.util.concurrent.atomic.AtomicLong |
poolVersion
|
private java.lang.reflect.Constructor<?> |
proxyClassConstructor
Since newProxyInstance performs the same operation, over and over again, it is much more optimized if we simply store the constructor ourselves. |
private java.util.concurrent.atomic.AtomicInteger |
size
Carries the size of the pool, instead of relying on a queue implementation that usually iterates over to get an exact count |
private java.util.concurrent.atomic.AtomicInteger |
waitcount
counter to track how many threads are waiting for a connection |
| Constructor Summary | |
|---|---|
ConnectionPool(PoolConfiguration prop)
Instantiate a connection pool. |
| Method Summary | |
|---|---|
protected void |
abandon(PooledConnection con)
thread safe way to abandon a connection signals a connection to be abandoned. |
private PooledConnection |
borrowConnection(int wait,
java.lang.String username,
java.lang.String password)
Thread safe way to retrieve a connection from the pool |
protected PooledConnection |
borrowConnection(long now,
PooledConnection con,
java.lang.String username,
java.lang.String password)
Validates and configures a previously idle connection |
void |
checkAbandoned()
Iterates through all the busy connections and checks for connections that have timed out |
void |
checkIdle()
Iterates through the idle connections and resizes the idle pool based on parameters PoolProperties.maxIdle , PoolProperties.minIdle , PoolProperties.minEvictableIdleTimeMillis |
void |
checkIdle(boolean ignoreMinSize)
|
protected void |
close(boolean force)
Closes the pool and all disconnects all idle connections Active connections will be closed upon the close method is called
on the underlying connection instead of being returned to the pool |
protected PooledConnection |
create(boolean incrementCounter)
Create a new pooled connection object. |
protected PooledConnection |
createConnection(long now,
PooledConnection notUsed,
java.lang.String username,
java.lang.String password)
Creates a JDBC connection and tries to connect to the database. |
protected void |
createMBean()
Create MBean object that can be registered. |
protected void |
disconnectEvent(PooledConnection con,
boolean finalizing)
Hook to perform final actions on a pooled connection object once it has been disconnected and will be discarded |
protected void |
finalize(PooledConnection con)
Hook to perform final actions on a pooled connection object once it has been disconnected and will be discarded |
int |
getActive()
Returns the number of connections that are in use |
java.sql.Connection |
getConnection()
Borrows a connection from the pool. |
java.sql.Connection |
getConnection(java.lang.String username,
java.lang.String password)
Borrows a connection from the pool. |
java.util.concurrent.Future<java.sql.Connection> |
getConnectionAsync()
Retrieves a Connection future. |
int |
getIdle()
Returns the number of idle connections |
ConnectionPool |
getJmxPool()
Return the object that is potentially registered in JMX for notifications |
java.lang.String |
getName()
Returns the name of this pool |
static java.util.Set<java.util.TimerTask> |
getPoolCleaners()
|
PoolConfiguration |
getPoolProperties()
Returns the pool properties associated with this connection pool |
static java.util.Timer |
getPoolTimer()
|
long |
getPoolVersion()
|
java.lang.reflect.Constructor<?> |
getProxyConstructor(boolean xa)
Creates and caches a Constructor used to instantiate the proxy object. |
int |
getSize()
Returns the total size of this pool, this includes both busy and idle connections |
static java.lang.String |
getStackTrace(java.lang.Throwable x)
Convert an exception into a String |
protected static java.lang.String |
getThreadDump()
Creates a stack trace representing the existing thread's current state. |
int |
getWaitCount()
Return the number of threads waiting for a connection |
protected void |
init(PoolConfiguration properties)
Initialize the connection pool - called from the constructor |
void |
initializePoolCleaner(PoolConfiguration properties)
|
boolean |
isClosed()
Returns true if close has been called, and the connection pool is unusable |
void |
purge()
Purges all connections in the pool. |
void |
purgeOnReturn()
Purges connections when they are returned from the pool. |
private static void |
registerCleaner(ConnectionPool.PoolCleaner cleaner)
|
protected void |
release(PooledConnection con)
thread safe way to release a connection |
protected void |
returnConnection(PooledConnection con)
Returns a connection to the pool If the pool is closed, the connection will be released If the connection is not part of the busy queue, it will be released. |
protected java.sql.Connection |
setupConnection(PooledConnection con)
configures a pooled connection as a proxy. |
protected boolean |
shouldAbandon()
Determines if a connection should be abandoned based on PoolProperties.abandonWhenPercentageFull setting. |
protected boolean |
shouldClose(PooledConnection con,
int action)
Determines if a connection should be closed upon return to the pool. |
protected boolean |
shouldReleaseIdle(long now,
PooledConnection con,
long time)
|
protected void |
suspect(PooledConnection con)
thread safe way to abandon a connection signals a connection to be abandoned. |
protected boolean |
terminateTransaction(PooledConnection con)
Terminate the current transaction for the given connection. |
void |
testAllIdle()
Forces a validation of all idle connections if PoolProperties.testWhileIdle is set. |
private static void |
unregisterCleaner(ConnectionPool.PoolCleaner cleaner)
|
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Field Detail |
|---|
public static final java.lang.String POOL_JMX_DOMAIN
public static final java.lang.String POOL_JMX_TYPE_PREFIX
private static final org.apache.log4j.Logger log
private java.util.concurrent.atomic.AtomicInteger size
private PoolConfiguration poolProperties
private java.util.concurrent.BlockingQueue<PooledConnection> busy
private java.util.concurrent.BlockingQueue<PooledConnection> idle
private volatile ConnectionPool.PoolCleaner poolCleaner
private volatile boolean closed
private java.lang.reflect.Constructor<?> proxyClassConstructor
private java.util.concurrent.ThreadPoolExecutor cancellator
protected ConnectionPool jmxPool
private java.util.concurrent.atomic.AtomicInteger waitcount
private java.util.concurrent.atomic.AtomicLong poolVersion
private static volatile java.util.Timer poolCleanTimer
private static java.util.HashSet<ConnectionPool.PoolCleaner> cleaners
| Constructor Detail |
|---|
public ConnectionPool(PoolConfiguration prop) throws java.sql.SQLException
PoolProperties
should not be reused for another connection pool.
prop
- PoolProperties - all the properties for this connection pool
java.sql.SQLException
| Method Detail |
|---|
public java.util.concurrent.Future<java.sql.Connection> getConnectionAsync() throws java.sql.SQLException
java.sql.SQLException
public java.sql.Connection getConnection() throws java.sql.SQLException
maxActive
connections a connection is returned immediately.
If no connection is available, the pool will attempt to fetch a connection for maxWait
milliseconds.
java.sql.SQLException
- - if the wait times out or a failure occurs creating a connectionpublic java.sql.Connection getConnection(java.lang.String username, java.lang.String password) throws java.sql.SQLException
maxActive
connections a connection is returned immediately. If no
connection is available, the pool will attempt to fetch a connection for
maxWait
milliseconds.
java.sql.SQLException
- - if the wait times out or a failure occurs creating a
connectionpublic java.lang.String getName()
public int getWaitCount()
public PoolConfiguration getPoolProperties()
public int getSize()
public int getActive()
public int getIdle()
public boolean isClosed()
close
has been called, and the connection pool is unusable
protected java.sql.Connection setupConnection(PooledConnection con) throws java.sql.SQLException
Connection
and PooledConnection
interfaces.
All calls on Connection
methods will be propagated down to the actual JDBC connection except for the
Connection.close()
method.
con
- a PooledConnection
to wrap in a Proxy
Connection
object wrapping a pooled connection.
java.sql.SQLException
- if an interceptor can't be configured, if the proxy can't be instantiatedpublic java.lang.reflect.Constructor<?> getProxyConstructor(boolean xa) throws java.lang.NoSuchMethodException
Constructor
used to instantiate the proxy object.
We cache this, since the creation of a constructor is fairly slow.
java.lang.NoSuchMethodException
protected void close(boolean force)
close
method is called
on the underlying connection instead of being returned to the pool
force
- - true to even close the active connectionsprotected void init(PoolConfiguration properties) throws java.sql.SQLException
properties
- PoolProperties - properties used to initialize the pool with
java.sql.SQLException
- if initialization failspublic void initializePoolCleaner(PoolConfiguration properties)
protected void abandon(PooledConnection con)
con
- PooledConnectionprotected void suspect(PooledConnection con)
con
- PooledConnectionprotected void release(PooledConnection con)
con
- PooledConnectionprivate PooledConnection borrowConnection(int wait, java.lang.String username, java.lang.String password) throws java.sql.SQLException
wait
- - time to wait, overrides the maxWait from the properties,
set to -1 if you wish to use maxWait, 0 if you wish no wait time.
java.sql.SQLException
protected PooledConnection createConnection(long now, PooledConnection notUsed, java.lang.String username, java.lang.String password) throws java.sql.SQLException
now
- timestamp of when this was callednotUsed
- Argument not used
java.sql.SQLException
protected PooledConnection borrowConnection(long now, PooledConnection con, java.lang.String username, java.lang.String password) throws java.sql.SQLException
now
- - timestampcon
- - the connection to validate and configure
java.sql.SQLException
- if a validation error happensprotected boolean terminateTransaction(PooledConnection con)
con
-
true
if the connection TX termination succeeded
otherwise false
protected boolean shouldClose(PooledConnection con, int action)
con
- - the connectionaction
- - the validation action that should be performed
protected void returnConnection(PooledConnection con)
PoolProperties.testOnReturn
is set to true it will be validated
con
- PooledConnection to be returned to the poolprotected boolean shouldAbandon()
PoolProperties.abandonWhenPercentageFull
setting.
public void checkAbandoned()
public void checkIdle()
PoolProperties.maxIdle
, PoolProperties.minIdle
, PoolProperties.minEvictableIdleTimeMillis
public void checkIdle(boolean ignoreMinSize)
protected boolean shouldReleaseIdle(long now, PooledConnection con, long time)
public void testAllIdle()
PoolProperties.testWhileIdle
is set.
protected static java.lang.String getThreadDump()
Thread.getStackTrace()
elementspublic static java.lang.String getStackTrace(java.lang.Throwable x)
x
- - the throwable
protected PooledConnection create(boolean incrementCounter)
public void purge()
purgeOnReturn()
public void purgeOnReturn()
purge()
protected void finalize(PooledConnection con)
con
- protected void disconnectEvent(PooledConnection con, boolean finalizing)
con
- public ConnectionPool getJmxPool()
ConnectionPoolMBean
interfaceprotected void createMBean()
private static void registerCleaner(ConnectionPool.PoolCleaner cleaner)
private static void unregisterCleaner(ConnectionPool.PoolCleaner cleaner)
public static java.util.Set<java.util.TimerTask> getPoolCleaners()
public long getPoolVersion()
public static java.util.Timer getPoolTimer()
|
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$ git update-index --cacheinfo mode sha1 path
git-update-index(1) Manual Page
NAME
git-update-index - Register file contents in the working tree to the index
SYNOPSIS
git update-index [--add] [--remove | --force-remove] [--replace] [--refresh] [-q] [--unmerged] [--ignore-missing] [(--cacheinfo <mode> <object> <file>)...] [--chmod=(+|-)x] [--[no-]assume-unchanged] [--[no-]skip-worktree] [--ignore-submodules] [--really-refresh] [--unresolve] [--again | -g] [--info-only] [--index-info] [-z] [--stdin] [--index-version <n>] [--verbose] [--] [<file>...]
DESCRIPTION
Modifies the index or directory cache. Each file mentioned is updated into the index and any unmerged or needs updating state is cleared.
See also git-add(1) for a more user-friendly way to do some of the most common operations on the index.
The way git update-index handles files it is told about can be modified using the various options:
OPTIONS
- --add
If a specified file isn't in the index already then it's added. Default behaviour is to ignore new files.
- --remove
If a specified file is in the index but is missing then it's removed. Default behavior is to ignore removed file.
- --refresh
Looks at the current index and checks to see if merges or updates are needed by checking stat() information.
- -q
Quiet. If --refresh finds that the index needs an update, the default behavior is to error out. This option makes git update-index continue anyway.
- --ignore-submodules
Do not try to update submodules. This option is only respected when passed before --refresh.
- --unmerged
If --refresh finds unmerged changes in the index, the default behavior is to error out. This option makes git update-index continue anyway.
- --ignore-missing
Ignores missing files during a --refresh
- --cacheinfo <mode> <object> <path>
Directly insert the specified info into the index.
- --index-info
Read index information from stdin.
- --chmod=(+|-)x
Set the execute permissions on the updated files.
- --[no-]assume-unchanged
When these flags are specified, the object names recorded for the paths are not updated. Instead, these options set and unset the "assume unchanged" bit for the paths. When the "assume unchanged" bit is on, Git stops checking the working tree files for possible modifications, so you need to manually unset the bit to tell Git when you change the working tree file. This is sometimes helpful when working with a big project on a filesystem that has very slow lstat(2) system call (e.g. cifs).
This option can be also used as a coarse file-level mechanism to ignore uncommitted changes in tracked files (akin to what .gitignore does for untracked files). Git will fail (gracefully) in case it needs to modify this file in the index e.g. when merging in a commit; thus, in case the assumed-untracked file is changed upstream, you will need to handle the situation manually.
- --really-refresh
Like --refresh, but checks stat information unconditionally, without regard to the "assume unchanged" setting.
- --[no-]skip-worktree
When one of these flags is specified, the object name recorded for the paths are not updated. Instead, these options set and unset the "skip-worktree" bit for the paths. See section "Skip-worktree bit" below for more information.
- -g
- --again
Runs git update-index itself on the paths whose index entries are different from those from the HEAD commit.
- --unresolve
Restores the unmerged or needs updating state of a file during a merge if it was cleared by accident.
- --info-only
Do not create objects in the object database for all <file> arguments that follow this flag; just insert their object IDs into the index.
- --force-remove
Remove the file from the index even when the working directory still has such a file. (Implies --remove.)
- --replace
By default, when a file path exists in the index, git update-index refuses an attempt to add path/file. Similarly if a file path/file exists, a file path cannot be added. With --replace flag, existing entries that conflict with the entry being added are automatically removed with warning messages.
- --stdin
Instead of taking list of paths from the command line, read list of paths from the standard input. Paths are separated by LF (i.e. one path per line) by default.
- --verbose
Report what is being added and removed from index.
- --index-version <n>
Write the resulting index out in the named on-disk format version. Supported versions are 2, 3 and 4. The current default version is 2 or 3, depending on whether extra features are used, such as git add -N.
Version 4 performs a simple pathname compression that reduces index size by 30%-50% on large repositories, which results in faster load time. Version 4 is relatively young (first released in in 1.8.0 in October 2012). Other Git implementations such as JGit and libgit2 may not support it yet.
- -z
Only meaningful with --stdin or --index-info; paths are separated with NUL character instead of LF.
- --
Do not interpret any more arguments as options.
- <file>
Files to act on. Note that files beginning with . are discarded. This includes ./file and dir/./file. If you don't want this, then use cleaner names. The same applies to directories ending / and paths with //
Using --refresh
--refresh does not calculate a new sha1 file or bring the index up-to-date for mode/content changes. But what it does do is to "re-match" the stat information of a file with the index, so that you can refresh the index for a file that hasn't been changed but where the stat entry is out of date.
For example, you'd want to do this after doing a git read-tree, to link up the stat index details with the proper files.
Using --cacheinfo or --info-only
--cacheinfo is used to register a file that is not in the current working directory. This is useful for minimum-checkout merging.
To pretend you have a file with mode and sha1 at path, say:
--info-only is used to register files without placing them in the object database. This is useful for status-only repositories.
Both --cacheinfo and --info-only behave similarly: the index is updated but the object database isn't. --cacheinfo is useful when the object is in the database but the file isn't available locally. --info-only is useful when the file is available, but you do not wish to update the object database.
Using --index-info
--index-info is a more powerful mechanism that lets you feed multiple entry definitions from the standard input, and designed specifically for scripts. It can take inputs of three formats:
mode SP sha1 TAB path
The first format is what "git-apply --index-info" reports, and used to reconstruct a partial tree that is used for phony merge base tree when falling back on 3-way merge.
mode SP type SP sha1 TAB path
The second format is to stuff git ls-tree output into the index file.
mode SP sha1 SP stage TAB path
This format is to put higher order stages into the index file and matches git ls-files --stage output.
To place a higher stage entry to the index, the path should first be removed by feeding a mode=0 entry for the path, and then feeding necessary input lines in the third format.
For example, starting with this index:
$ git ls-files -s 100644 8a1218a1024a212bb3db30becd860315f9f3ac52 0 frotz
you can feed the following input to --index-info:
$ git update-index --index-info 0<PHONE_NUMBER>000000000000000000000000000000 frotz 100644 8a1218a1024a212bb3db30becd860315f9f3ac52 1 frotz 100755 8a1218a1024a212bb3db30becd860315f9f3ac52 2 frotz
The first line of the input feeds 0 as the mode to remove the path; the SHA-1 does not matter as long as it is well formatted. Then the second and third line feeds stage 1 and stage 2 entries for that path. After the above, we would end up with this:
$ git ls-files -s 100644 8a1218a1024a212bb3db30becd860315f9f3ac52 1 frotz 100755 8a1218a1024a212bb3db30becd860315f9f3ac52 2 frotz
Using ``assume unchanged'' bit
Many operations in Git depend on your filesystem to have an efficient lstat(2) implementation, so that st_mtime information for working tree files can be cheaply checked to see if the file contents have changed from the version recorded in the index file. Unfortunately, some filesystems have inefficient lstat(2). If your filesystem is one of them, you can set "assume unchanged" bit to paths you have not changed to cause Git not to do this check. Note that setting this bit on a path does not mean Git will check the contents of the file to see if it has changed -- it makes Git to omit any checking and assume it has not changed. When you make changes to working tree files, you have to explicitly tell Git about it by dropping "assume unchanged" bit, either before or after you modify them.
In order to set "assume unchanged" bit, use --assume-unchanged option. To unset, use --no-assume-unchanged. To see which files have the "assume unchanged" bit set, use git ls-files -v (see git-ls-files(1)).
The command looks at core.ignorestat configuration variable. When this is true, paths updated with git update-index paths... and paths updated with other Git commands that update both index and working tree (e.g. git apply --index, git checkout-index -u, and git read-tree -u) are automatically marked as "assume unchanged". Note that "assume unchanged" bit is not set if git update-index --refresh finds the working tree file matches the index (use git update-index --really-refresh if you want to mark them as "assume unchanged").
Examples
To update and refresh only the files already checked out:
$ git checkout-index -n -f -a && git update-index --ignore-missing --refresh
- On an inefficient filesystem with core.ignorestat set
$ git update-index --really-refresh <1> $ git update-index --no-assume-unchanged foo.c <2> $ git diff --name-only <3> $ edit foo.c $ git diff --name-only <4> M foo.c $ git update-index foo.c <5> $ git diff --name-only <6> $ edit foo.c $ git diff --name-only <7> $ git update-index --no-assume-unchanged foo.c <8> $ git diff --name-only <9> M foo.c
forces lstat(2) to set "assume unchanged" bits for paths that match index.
mark the path to be edited.
this does lstat(2) and finds index matches the path.
this does lstat(2) and finds index does not match the path.
registering the new version to index sets "assume unchanged" bit.
and it is assumed unchanged.
even after you edit it.
you can tell about the change after the fact.
now it checks with lstat(2) and finds it has been changed.
Skip-worktree bit
Skip-worktree bit can be defined in one (long) sentence: When reading an entry, if it is marked as skip-worktree, then Git pretends its working directory version is up to date and read the index version instead.
To elaborate, "reading" means checking for file existence, reading file attributes or file content. The working directory version may be present or absent. If present, its content may match against the index version or not. Writing is not affected by this bit, content safety is still first priority. Note that Git can update working directory file, that is marked skip-worktree, if it is safe to do so (i.e. working directory version matches index version)
Although this bit looks similar to assume-unchanged bit, its goal is different from assume-unchanged bit's. Skip-worktree also takes precedence over assume-unchanged bit when both are set.
Configuration
The command honors core.filemode configuration variable. If your repository is on a filesystem whose executable bits are unreliable, this should be set to false (see git-config(1)). This causes the command to ignore differences in file modes recorded in the index and the file mode on the filesystem if they differ only on executable bit. On such an unfortunate filesystem, you may need to use git update-index --chmod=.
Quite similarly, if core.symlinks configuration variable is set to false (see git-config(1)), symbolic links are checked out as plain files, and this command does not modify a recorded file mode from symbolic link to regular file.
The command looks at core.ignorestat configuration variable. See Using "assume unchanged" bit section above.
The command also looks at core.trustctime configuration variable. It can be useful when the inode change time is regularly modified by something outside Git (file system crawlers and backup systems use ctime for marking files processed) (see git-config(1)).
SEE ALSO
GIT
Part of the git(1) suite


We will become a brotherhood of driven leaders that actively inspire positive change, uphold moral values, and foster lifelong friendships.
As a brotherhood, we aim to create a positive presence on our campus that will help spread and develop the ideals of friendship, sound learning, and morality that are the tenants of our fraternity


--- layout: default title: Everybody Votes Channel ---
The Everybody Votes Channel is available with RiiConnect24! You can vote on fun polls, and suggest your own! Click here if you want to see original poll results from Nintendo.


Sign up at www.ascrdt.com For more info contact Joe Lackey<EMAIL_ADDRESS>or Stephanie Carson stephaniecarson123@gmail.com


Blue Denim shirt
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By default MRS searches all databanks. However, if you want to search just one databank you can select it from the popup button at the top of the window.
When a record or result list for one specific databank is being displayed a link will be available that brings you to the page containing information about this databank. Information you find here included among others the list of available indices for this particular databank.


|
Lingvo
DeutschLernenfürAsylbewerber
|
Public Member Functions | |
| void | DeleteStudentRecording () |
| Deletes the student recording that is currently attached to this page. More... | |
Properties | |
| int | Id [get, set] |
| Recording | TeacherTrack [get, set] |
| Gets or sets the teacher track. More... | |
| Recording | StudentTrack [get, set] |
| Gets or sets the student track. More... | |
| void Lingvo.Common.Entities.IExercise.DeleteStudentRecording | ( | ) |
Deletes the student recording that is currently attached to this page.
Implemented in Lingvo.MobileApp.Proxies.PageProxy, Lingvo.Common.Entities.Page, and Lingvo.MobileApp.Entities.TeacherMemo.
|
getset |
Gets or sets the student track.
The student track.
|
getset |
Gets or sets the teacher track.
The teacher track.


Let us know you're in the area! Message our chapter through the form below to get in touch or join the Triangle Fraternity - Seattle Area Association Facebook group to get up to date information about alumni events.


--- title: Class RpcHandler description: RpcHandler navLabel: RpcHandler category: class body_class: dark ---
Create a remote procedure call. This requires a rpc name for routing, a JSON serializable object for any associated arguments and a callback to notify you with the rpc result or potential error.
rpcName
- The name of the rpcdata
- Serializable data that will be passed to the providerRegisters a RpcRequestedListener
as a RPC provider. If another connected client calls
RpcHandler.make(String,Object)
the request will be routed to the supplied listener.
Only one listener can be registered for a RPC at a time.
Please note: Deepstream tries to deliver data in its original format. Data passed to
RpcHandler.make(String,Object)
as a String will arrive as a String, numbers or implicitly JSON serialized objects will arrive in their respective format as well.
rpcName
- The rpcName of the RPC to providerpcRequestedListener
- The listener to invoke when requests are receivedUnregister a RpcRequestedListener
registered via Rpcprovide(String,RpcRequestedListener )
rpcName
- The rpcName of the RPC to stop providingThe main class for remote procedure calls Provides the rpc interface and handles incoming messages on the rpc topic
deepstreamConfig
- The deepstreamConfig the client was created withconnection
- The connection to deepstreamclient
- The deepstream clientMain interface. Handles incoming messages from the message distributor
message
- The message recieved from the serverRetrieves a RPC instance for a correlationId or throws an error if it can’t be found (which should never happen)
Handles incoming rpc REQUEST messages. Instantiates a new response object and invokes the provider callback or rejects the request if no rpc provider is present (which shouldn’t really happen, but might be the result of a race condition if this client sends a unprovide message whilst an incoming request is already in flight)
Send an unsubscribe or subscribe event if the connection is open


The angular-datatables
also provides an API in order to make the plugin Buttons
work with datatables.
You need to add the file angular-datatables.buttons.min.js
to your HTML file.
You also need to add the dependency datatables.buttons
to your Angular app.
See the API for the complete list of methods of the helper.


Ready To Rumble Reviewed: Joe Soria
Ready to Rumble is not a masterpiece in film; I have a problem even regarding it as a film. It's more of a show, a big commercial for Ted Turner's World Championship Wrestling (WCW). The movie is almost entirely about and fully showcases the wrestlers of the WCW like Diamond Dallas Page, Goldberg, and Sting.
The story is very minimal and basic. There are these two guys, Gordy (David Arquette) and Sean (Scott Caan). They are two twenty-something wrestling fans from Wyoming. When they go to a live event for the big match up, there favorite wrestler Jimmy King (Oliver Platt) is defeated and his career is announced to be over by the mean commissioner Titus (Joe Pantoliano). Gordy and Sean decide to go on a quest to find Jimmy and bring him back to the top and defeat the evil Titus' plans. On the way, they meet some people, have some fun, and clean up some port-o-potties. Sounds great huh, well it's not.
The movie makes many attempts at humor, only a few of them work. The jokes that make you laugh, however, do not outnumber the film's many duds. There is a funny repertoire between Arquette and a convenience store cashier played by Ahmet Zappa. The cashier is very mean to Arquette so Arquette Dreams of ways to get him back. I especially enjoyed one version in which they have a wrestling match and Arquette's tag team partner is 'Macho Man' Randy Savage. They wrestle between the aisles knocking over cans and getting body slammed on the floor. The other good part of the film is the sexual confrontation between Arquette and Rose McGowan. McGowan plays Sasha the head Nitro Girl, the cheerleaders of the WCW. She becomes attracted to Gordy and they have some nice, funny scenes together especially one scene in which Arquette calls McGowan's breasts foreign objects than punches her directly into the face.
Now what didn't work in this movie? That would be the rest of it.  The two lead characters work for a port-o-potty cleaning company and when they crash the truck, the excrements spill all over the road.  The film is giving homage to how blindly faithful of their wrestlers but not all wrestling fans are that way. I watch it for entertainment and I would think some people would take offense to what is said throughout the movie. The main characters in the film actually get to wrestle, like that would happen to any fan, especially to 2 that stalk a wrestler and sneak him back onto set. Also, I wondered how they got into the backstage so easily; they just walked right in.
I like wrestling. I watch it at home and laugh. It's continuously funny and has great characters otherwise I wouldn't watch it. This movie wasn't even funny or fun to watch like the wrestling on TV. The only fun I had in the movie was pointing out the wrestlers I knew. The funny thing was that many of the WCW featured wrestlers like Saturn and Chris Benoit have left WCW for more money but are still featured in the film prominently. The movie was too dim-witted to be funny. It is possibly the most useless and under-developed film ever. A recent film in this genre of fans would be the kiss fan film, Detroit Rock City. That movie was interesting, well done and continuously funny unlike this film. The acting was good plus the jokes had humor and made you laugh.
 At least he has a hot wife in Courtney Cox. He's in the funny parts of the film but there aren't enough to make him look good. The music was bad also feature such overplayed tunes as Kid Rock's "Bawitdaba" and "Cowboy". Martin Landau has a great cameo as a classic, hard-nosed wrestling trainer named Sal that whips the King back into shape to regain his throne.
 A fan of the wrestlers who are featured in the film probably wrote it. At times the movie even tries to show wrestling as real. The wrestlers form alliances, go to people's houses and beat them up.  The whole film was a wasteful, dumfounding experience.
The movie was made to pay homage to the fans, telling them things that made wrestling, not the wrestlers. The wrestlers are making more money to make a movie to thank the fans for begin fans by paying 5 dollars to see a potty-humor movie.  If you're going to watch wrestling watch WWF, it's actually entertaining. The wrestling is betters, they're funnier, more diverse, and have better entrance themes. Oh and the girls are hotter. Is this what movies have become, 2 hour-long commercials that you have to pay to see? Don't waste your money.
Rating: * out of **** Reviewed by Joe Soria Running time: 107 minutes Rated PG-13 for language, crude humor, sexual content including brief nudity, and wrestling violence.
Genre: Dumb, potty humored Comedy Main stars: David Arquette (Scream), Scott Caan (Varsity Blues), Rose McGowan (Jawbreaker), Martn Landau (Ed Wood), Goldberg , Diamond Dallas Page. Written by: Steven Brill (The Mighty Ducks) Director: Brian Robbins (Varsity Blues)
For More of Joe Soria's reviews and other writings check out: http://buscemifan.tripod.com
The review above was posted to the
rec.arts.movies.reviews newsgroup (de.rec.film.kritiken for German reviews).
The Internet Movie Database accepts no responsibility for the contents of the
review and has no editorial control. Unless stated otherwise, the copyright
belongs to the author.
Please direct comments/criticisms of the review to relevant newsgroups.
Broken URLs inthe reviews are the responsibility of the author.
The formatting of the review is likely to differ from the original due
to ASCII to HTML conversion.
Related links: index of all rec.arts.movies.reviews reviews


The lazySizes Responsive Image as Service plugin allows you to extend lazysizes with any third party or self hosted REST like image API service.
For a short full API description go to the readme.md.
Include the ls.rias plugin right after your lazysizes script, add the lazyload
class as usual and the data-sizes="auto"
attribute.
Inside of your data-src
value include the {width}
placeholder

maxdpr
and the quality
All options can be controlled globally through the lazySizesConfig.rias
object or by using data-*
attributes.
The quality (default: 80)
and hdQuality (default: 70)
feature helps you to control the quality of the generated image (in case your API supports this). Due to the fact, that retina images can be often heavier compressed without hurting perceived quality, this can be specified separately.
The maxdpr
feature helps you to constrain the devicePixelRatio, which is used to calculate the resulting width.

picture
element< />


Get gifs from gifcities.org. Note the code is editable and can be run with the "Run" button < Previous example | Next example >


Entrepreneurship
The activity of setting up a business or businesses, taking on financial risks in the hope of profit.
The Sishya LaunchX Entrepreneurship Club is a club that I've founded in my school in 2017. MIT, in collaboration with LaunchX, introduced an online platform whereby high school students could join an 'MIT Launch Club' run by students in their respective schools, learn about what it truly means to be an entrepreneur, and turn their ideas for a product or business into an actual company. I am the School President and Education Lead for the Launch Club in my school.
Amtex System Inc. is a New York State certified MBE providing specialized technology platforms and services in Software Development & Consulting, Digital Media, Business Intelligence, Mobile Applications and Content Management. I was a Student Intern at Amtex Systems for a period of 3 weeks. I interned at the Chennai office.
FICCI FLO Chennai, an organization solely run by women, has adopted four villages - Venkatapuram, Sasthirambakkam, Thellimedu and Mettu Colony - under the Gram Yojana Scheme. I volunteered as a student to help teach Mathematics to the children in the Venkatapuram and Mettu Colony villages, as well as help raise funds and collect soaps and other resources to improve the health and sanitation levels of these villages.
Under the mentorship of Mr. Aresh Babu, data analyst at Crowne Plaza Hotel, and Mr. Arindam Kunar, General Manager at Crowne Plaza Hotel, I was able to complete an analysis of the Revenue Growth between Q2 and Q3 of the 2016-17 year. I also used predictive analysis through statistical data to forecast RGI Growth for the next year.


PhoneGap
An HTML5 app platform that allows you to author native applications with web technologies and get access to APIs and app stores.
Select a PhoneGap API to see it demonstrated.
See assets/www/apis/ for JavaScript implementations of each API.
© 2012 Mobile Developer Solutions
Accelerometer
Captures device motion in the x, y, and z direction.
Toggle to stop/start
accelerometer watch.
Get Current for one-time accelerometer reading.
Toggle
Get Current
- X:
- Y:
- Z:
Camera
The
camera
object provides access to the device's default camera application.
Take a Picture using device camera.
Select to get picture from album or library.
Take a Picture
Select
Capture
Audio Image VideoProvides access to the audio, image, and video capture capabilities of the device.
Compass
Obtains the direction that the device is pointing.
Toggle to stop/start
compass watch.
Get Current for one-time compass reading.
Connection
Check ConnectionThe
connection
object gives access to the device's cellular and wifi connection information.
Device
The
device
object describes the device's hardware and software.
Important Access device
object only after deviceready
event.
| Device | Value |
|---|---|
| Name | |
| Platform | |
| PhoneGap Version | |
| UUID | |
| OS Version | |
| Screen | Value |
| Width | |
| Height | |
| Available Width | |
| Available Height | |
| Color Depth |
Events
PhoneGap lifecycle events.
Tap device (or virtual device) menu
or search
buttons to see example callback output.
Other event example callbacks use console.log
File
Create WriteAn API to read, write and navigate file system hierarchies.
Data Url:
Geolocation
The
geolocation
object provides access to the device's GPS sensor.
Toggle to stop/start
geolocation watch.
Get Current for one-time geolocation reading.
Toggle
Get Current
Media
The
Media
object provides the ability to record and play back audio files on a device.
Storage
Provides access to the devices storage options.
Based on W3C Web SQL Database Spec and W3C Web Storage API Spec
Create DB SQL Result SetWrite LocalStorage Read LocalStorage Remove Item


Some things, just need to be extra.
Add a touch of motion to any content with this simple to use element.
The text-effect is just CSS. Read more about this element in its documentation, linked to the right.
The following is a direct copy of the reveal element above.


Martijn van Welie, Gerrit C. van der Veer
Unread
Provides a potential boundary object for firmware co-design - that of interaction design patterns perhaps evoked by an archetypal example of its use, which participants may already be familiar with, or could be exposed to. It also provides a model of the way in which design alternatives could be structured and navigated according to relationships such as is-a or has-a or relates-to .
"After initial investigations of the applicability of patterns for Interaction Design (Borchers 2001), actual patterns collections are now publicly available in books (van Duyne, 2002, Graham 2003, Borchers 2001) or online (van Welie, 2000, Tidwell 1998). With a total count of more than 250 published patterns, the organization and classification of patterns is becoming a practical issue. Pattern organization is necessary to facilitate the selection of individual patterns but also to find patterns that are applicable in a broader context of any given design problem."
"a set of connected patterns is called a pattern language."
"user interfaces are not strictly hierarchical in a geometrical sense. There is certainly a 2D display involved but what is shown on it varies over time"
"Object Oriented Software Design, use a different organization, categorizing them in creational, structural and behavioural"
"In Interaction Design several alternative organizations have been proposed. Mahemoff (1998) distinguishes patterns for tasks, users, user-interface elements, and entire systems."
"More recently, substantial bodies of patterns have been published, e.g. van Duyne et al (2002) which makes the discussion more relevant."
"The basic assumption in the concept of a pattern language is that patterns are related to each other, forming a network of connected patterns. These relationships are at the heart of the pattern language because they create actual additional value over single patterns... A closer look reveals that there are some fundamental relationships distinguishable, resembling the types of relationships known from Object Oriented Modelling....Aggregation...Specialization...Association" £ suggest a concrete structure within which design choices can be laid out
"Consider the SHOPPING CART pattern. Using this pattern users can manage a list of items in a cart. The cart is actually a persistent list of items on which users can perform some operations such as delete, view, change quantity. This basic behaviour is covered by the L IST B UILDER pattern. Similarly, the checkout procedure is actually just a WIZARD with specific steps such as ‘specify delivery address’, ‘payment selection’, ‘confirm’ etc. The SHOPPING CART is a pattern that aggregates several other patterns. This is a form of a “has-a” relationship. The SHOPPING CART has a LIST BUILDER and also has a WIZARD ."
"A pattern may be associated to other patterns because they also often occur in the larger context of the design problem, or because the patterns are alternatives for the samekind of problems."
"When looking at such a networked set of patterns, we can also see layers of patterns emerging, when going from high level patterns to lower level patterns. These layers are rough delineations of the typical levels that are encountered in design. The levels we have identified so far are posture , experience , task and action ."
"From experience we know that many sites are actually quite similar in the sense that they serve the same goals and have a structurally similar site concept. This can be called the site’s ‘ posture ’ (Cooper95), ‘genre’ (van Duyne et al 2002) or ‘type’." [my bold]
"From the basic posture and from user research, designers will have to determine what are the main user goals and tasks that need to be supported and to what extent. We will call this the ‘ experience ’." [my bold]
"The task level is the level where we start to see most concrete and well-known patterns such as SHOPPING CART or PRODUCT COMPARISON...Typically a task pattern describes a series of interactions on one or more objects for solving a problem. Such a series corresponds to a task sequence needed to achieve a task goal. Task patterns are relatively domain independent." [my emphasis]
" action patterns” ...are often similar to widgets. They occur is almost all task patterns and are the lowest level of building blocks we still want to call a pattern." [my emphasis]
"A pattern language can be seen as a mental model (van der Veer & Puerta Melguizo, 2002) that a designer has. Writing down design knowledge using a pattern language is an activity of making a structured explicit representation of ones mental model."
"Now that we have reached the point where many patterns are available, one may wonder how many patterns will need to be added in order to make a language ‘complete’...one criterion could be that completeness is reached when the available patterns can account for all different qualitatively good designs one can find."
"We say ‘usable websites’ because we are only interested in describing ‘good’ design."
"Designers often need to make a decision about a functional aspect and may be best served by a set of patterns that can be classified as belonging to that functional aspect. Functional aspects may include navigation, searching, product display, layout and so on. Most existing pattern collections use such an organization...Another organization principle is based on usability defect...Clustering by user task and user type might also be a relevant organization principle....In practice designers often work on a particular site posture and may be interested only in patterns that apply to such sites."
"For practical use several kinds of pattern classifications may turn out to be useful. These are merely different ‘views’ on a language while the fundamental pattern relationships are still being respected since those are embedded in the patterns themselves."
"In this paper we have used web design as the domain for constructing a
pattern language but it is also possible to create a similar
language for GUI design or for designing interface for mobile devices." £
suggests a way forward for firmware pattern language
They make explicit the assumption that interaction design for them involves a "2D display", when discussing how whole solutions might break down into individual patterns. In the architectural case this can be done according to spatial scale. They have ambitions for a hierarchy which isn't based on the designs occupying a metric space. The transference of patterns from architecture to 'design patterns' in object-oriented software design is instructive. It's interesting, however, that something intended to help with engagement (clients being able to refer to patterns) has ended up within OO being about arcane implementation detail where the design alternatives and benefits are principally understood by programmers and relate to implementation practices, rather than end-results.
Alexander, C., Ishikawa, S., Silverstein, M., Jacobson, M.,
Fiksdahl-King, I. & Angel, S. (1977), A Pattern
Language, Oxford University Press,New York credited for Architecture
"design patterns"


Lesson 1
I learned the major pieces of the web; Me, my computer running a browser, the Internet, and Servers.
We learned that the language used to communicate with the computer is called
Hypertext Markup language.
It is made up of text content (what you see), markings (what it looks like), and the reference. We also learned tags.
There are different types of tags; opening and closing tags. There are also void tags. When you have
an opening tag with content
and a closing tag, these items together are called an element.
If I wanted to make an item italicized, the tag makes them
italicized, but once I insert the closing tag, everything after the closing tag goes back to regular type.
I also learned that I can make words bold by using the "b" tag. We also learned about attributes. That
means
I can use an attribute name like href and insert a website. One example we learned in class
is href = "www.reddit.com"> derp"
We learned that we can insert an image by using the tag
This is blind text because images
don't have
a closing tag.' They are called Void tags. An Anchor tag uses href attributes while image tags use src attributes.
We also learned about inline and block tags.
We learned that a web page is a text document written in a language called HTML.
Web
browserss read these documents, and then interpret and display them.
Coding happens when programmers write text in a language a computer can understand. The computer
which is a dumb machine, can follow the instructions the programmer wrote
That being said, programmers need to write
"exactly" the way a computer understands. This is
also known as writing with correct syntax. "


This single-file program implements a useful subset of POSIX yacc. It lets you describe a language with an unambiguous LALR(1) grammar and compiles it into a fast C parser for that language. Because it is so simple, you can use it to learn about parser generation. You can also use it to quickly bootstrap a yacc for another language. Finally, because it is standalone and under MIT/X license, you can integrate it very easily in your programs.
cc yacc.c -o yacc
.
git://c9x.me/miniyacc.git
.
Here is a complete minimal example to get started. You can
compile it using yacc xmpl.y && cc y.tab.c
.
Then use the input "2*(3+4*3+1)" to test it, for example.
%{ #include <stdio.h> int yylex(void); %} %token INT %left '+' %left '*' %% prog: expr { printf("-> %d\n", $1); } ; expr: INT | '(' expr ')' { $$ = $2; } | expr '+' expr { $$ = $1 + $3; } | expr '*' expr { $$ = $1 * $3; } ; %% int yylex() { /* crude lexer */ int c = getchar(); if (c >= '0' && c <= '9') { yylval = c-'0'; return INT; } return c == EOF ? 0 : c; } int main() { return yyparse(); }
#line
directives.
The two main features lacking to make it fully POSIX compliant are error recovery and mid-action rules (although these can be emulated by adding a few extra non-terminals with an empty production). Negative references into the parsing stack are also unsupported.
Yacc is a complex program, to understand it one must first understand the basics of shift-reduce parsers and get a high level idea of how LR state generation goes. I cannot cover these topics here because I know I will make a poor job at it. The Dragon Book has excellent coverage for them and the first edition (which is more than enough) can be found for a couple of dollars on Amazon (I bought one there and I'm extremely happy with it). If you contact me in person, I can provide additional documentation. In the sequel I will assume that you are a bit familiar with the terminology.
My implementation is divided into four parts, the first one deals with straightforward inference of properties on the grammar (is a non-terminal nullable, what is its FIRST set); the second part implements the primitve operations GOTO and CLOSURE on sets of LALR(1) items together with the state generation; the third part figures out the final parsing tables and compresses them; finally the last part and also the simplest deals with all the .y parsing and the .c/.h printing.
With loose discipline, I prefixed most functions of the first three parts
with respectively, g
, i
and tbl
. Also,
the order in which I listed the parts is the order in which you will find
them in the source. This gives you a basic way to navigate the code. What
follows is a high level description of every important function and type.
| Sym | A symbol, if it is smaller than MaxTk it is a token, otherwise it is a non-terminal. No real symbol can be the special symbol S, we use it to mark the end of a string of symbols. |
| Rule | A grammar rule, the lhs field is an array of symbols terminated by the special symbol S. The action field stores the semantic action given in the .y file for this rule. |
| Item | A LALR(1) state, i.e. a set of Term.
The set is stored in an array which is structured as
follows. Elements of the core (which have
their dot not at the very beginning) come first, and
they are sorted according to the icmp order.
Then follows a bunch of items not in the core, they
can be in any order but need to be grouped by lhs.
Here is an example item
E -> E . O E O -> . A A -> . '+' A -> . '-' |
| rfind | Returns a pointer to the first Rule with a given left-hand-side. We use the fact that the rs array is sorted by lhs. |
| first | Computes the set F of initial tokens that can be generated by the given sentence terminated by with element of the last set and union the set passed as first argument with F. |
| ginit | For every non-terminal N, it computes if N is nullable or not and the set FIRST(N) and stores it in the is symbol information array. |
| iclose | Computes the closure of a LALR(1) state. We basically follow the textbook procedure. Note that we make use of the fact that non-core items are grouped by lhs while filling and using the smap array. |
| igoto | Computes the GOTO along a given symbol of a LALR(1) state. |
| icmp | Is non-trivial because it relies on the fact two elements can be compared by only comparing their core. You can see the Dragon Book to understand why (or just think about it). |
| stadd | Is the main workhorse of the state generation routine. It figures out if a state to-be-inserted is already present in the state array (kept sorted using the icmp order) and adds it if not present. An integer is returned to signal if a change occured in the state list or not. |
| stgen | The actual state generation function, here also, we follow the textbook procedure. We use the modified bit returned by stadd to figure out if more work has to be done or not. There is a simple optimization that sticks a dirty bit to every state to know if it is necessary to recompute the GOTOs from this state or not. |
| resolve | Resolves shift/reduce conflicts using precedence and associativity of tokens and rules. The procedure implemented is described in details by POSIX. |
| tblset | Compute the action generated by one Term in a LALR(1) state, it can be a shift or a reduce depending on the position of the dot. This function figures out if the grammar has conflicts or not. |
| setdef | Given a table row, this function figures out the most frequent entry and stores it as default. It is used to get a very sparse table (compact to store). The rows it processes are rows from the action and goto tables. On an action row, it is very often (if not always) that there is only one reduce entry, we use it as default. The goto table, if stored with indexing [state][nonterm] always have entries that are all different (see Dragon Book), to make good use of the default table one must store it with indexing [nonterm][state]. To convince yourself that it is a good idea, your can run yacc.c on a sample grammar with the -v option and check the y.output file. |
| tblgen | Generate the action and goto tables and compute and store their most frequent entry per row. The indexing for the goto table is [nonterm][state], and for the action table it is [state][token]. These different indexing schemes permit to have smaller tables. |
| actgen | The supperficial logic is simple, but as a comment warns, there is a tricky invariant. This invariant has to deal with the way the check table is generated. I will give more details below on how the tables are stored and why we must be careful when generating them. |
| tblout | Dumps the tables using C syntax. |
| nexttk cpycode gettype getdecls getgram | Vogon poetry for parsing. |
| actout | Output the code for one action and substitutes the $$ and friends with regular C code. This is a little complex because we have to do what POSIX calls "type inference", that is, find out what is the union field to use for each of the non-terminals referenced in an action. |
| codeout code0 code1 | Data and simple code to output the final C file. Originally, Yacc was using intermediate files for this generation (POSIX even mentions them). Considering how much memory today's computer have, I did not bother with that and just stored everything in RAM. |
A Yacc program is expected to generate two main tables: the goto table and the action table. In practice, one needs to generate a few more. Here is a description of all the tables generated by the yacc.c program.
yytrns
POSIX requires that 'c' for every c is a
valid token, we use this table to map tokens given by yylex
to a smaller range (this makes the tables more compact).
yyr1
maps a rule number to the arity (number
of elements in the lhs) of this rule.
yyr2
maps a rule number to the lhs symbol
of this rule.
yyadef
maps a state to the default reduce for
this state, or -1 if the state cannot reduce.
yygdef
maps a non-terminal to its most
frequent GOTO destination. (Remember that the gotos are
indexed [nonterm][state].)
yyadsp
maps states to displacements for actions.
yygdsp
maps non-terminals to displacements for gotos.
yyact
contains actions and gotos, this is the
most important table together with the next one.
yychk
is the checking table for
yyact
.
The scheme used to store tables in a space-efficient manner uses what we call a row displacement table. The idea is described very well in Robert Tarjan's paper Storing a sparse table, it is also described in section 3.9 of the Dragon Book. I will try to sum it up in a few words. Assume we want to store efficiently a table A with many zeroes inside, we also would like that the access in the compacted table is in constant time. To do this, we linearize the table A into a simple array and overlap the different rows of A to make sure very few zeroes are left. Each original row of A will be assigned a displacement into the linear array. The following figure shows an example of this packing process on a sample table, the r{n} number is the displacement of the original row n. Stars in the A table represent non-zero entries.
The above figure does not show the table T that stores all the non-zero entries, instead it shows the checking table C. Using the displacements r{n}, it is easy to construct T. The table C is used for retrieval of data: to get the entry A[n][m] (if n and m are 1-indexed) we use the algorithm below.
x := r{n} + m if (x <= 0) || (x > size of C) || (C[x] != (n-1)*5 + m-1) then return 0 else return T[x] fi
Notice how the C table holds the cell number of the corresponding entry stored
in the A table. It is also sufficient to make C store only the row number
of the entry stored in A, this makes the numbers stored in C smaller and can
help save a few bytes. This is what we do for the goto table: the checking
table yychk
stores only non-terminal numbers for validation.
You can see how they are checked in code0
, the skeleton code
for C files generation.
The case of the action table is a bit trickier. One
can easily observe that many rows in an action table are often identical,
so we would like to assign these rows the same displacement. This is possible
but what is stored in the checking table needs to be changed. Indeed, the
whole point of the checking table is that no two entries of A can be validated
at the same location in T. One way to make this compression possible is to
store the column number in the checking table instead of the row
number. This way, two same rows can be assigned the same displacement and
will both be correctly validated by the checking table. This explains why
the yychk
table checks action entries based on token number
(and not on state number).
We can now discuss the way to find the displacements r{n} used above.
There is a fairly straightforward greedy algorithm that works well for
that (it is explained in Tarjan's paper why). We simply sort the rows
by decreasing number of non-zero entries and greedily assign the first-fit
displacements for all the rows. This explains why there are qsort
calls in the actgen
function. You can check that the
displacements for A above were generated with this technique. This is
all nice and simple, but when we play the trick explained in the previous
paragraph we have to be a bit careful. The risk is that a naive implementation
of the algorithm described here could assign the same displacement to
the two following rows.
Colmns 1 2 3 4 5 6 7 8 9 -------+-------------------+ ... Row n | 0 0 3 0 4 0 0 0 6 | ... Row m | 0 0 3 0 0 0 0 0 6 |
Row m is "included" in row n, a naive implementation could give them
the same displacement, but then, when querying the entry [m][5], one
would get 4 as an answer (becasue the checking table would validate the
column 5 for row n) and not 0! This is a potential source of nasty bugs.
The lesson is that rows must be assigned the same displacement if and only
if they are exactly the same. The loop in actgen
makes sure
it is the case by relying on the fact that entries are supplied in
decreasing number of non-zero entries. This is probably the trickiest part
of table generation (and it is also a performance hog), I would be happy
to take your suggestions about that.
I want to conclude these remarks on table generation/compression by saying that if this remains opaque for you, the best we to understand it is to use a very small grammar (infix addition and multiplication for example), run it through yacc.c with the -v option and decypher the code generated using the y.output file, a pen, and some paper. You might even discover a bug that way!


Search for songs to create your own playlist or browse already created playlists. Click the logo at any point to get back here
Search and create a new playlist
See all playlists
Create Playlist


Behavior
These are very obedient Pokemon, but very shy. Pidgey generally prefer to run away from their enemies rather than fight them. Pidgey are the perfect Pokémon for young and inexperienced trainers.


US Dollar Index struggles for direction just below 98.00
by Pablo Piovano- DXY looks to extend gains around the 98.00 area.
- US 10-year yields stay flat below the 1.80% mark.
- Flash PMIs, final U-Mich index next on the docket.
The US Dollar Index (DXY), which gauges the greenback vs. a basket of its main competitors, is extending the gradual weekly upside to the 98.00 neighbourhood.
US Dollar Index stays focused on trade, looks to data
The index continues to recover albeit at a slow pace from Monday’s lows in the 97.70/65 band against the backdrop of renewed concerns on the US-China trade front and escalating tensions over the unremitting social unrest in Hong Kong.
In fact, uncertainty around the ‘Phase One’ deal remains on the rise amidst the lack of progress in past weeks, while President Trump threatened once again to raise tariffs even higher if both countries remain unable to sign a deal in the near term.
In the US docket, advanced manufacturing and services PMIs are due seconded by the final print of the November’s Consumer Sentiment measured by the U-Mich index.
What to look for around USD
The index seems to have met solid contention in the 97.70 region so far this week. In the meantime, headlines from the US-China trade dispute are expected to remain as the exclusive driver when comes to price action in the global markets, while investors keep monitoring US fundamentals amidst the ‘wait-and-see’ stance from the Federal Reserve and the steepening of the 2y-10y yield curve seen as of late. Moving to US politics, markets keep ignoring developments from the Trump’s impeachment process, while the impact on the FX space remains muted so far. On the broader view, however, the outlook on the greenback still looks constructive on the back of the Fed’s ‘wait-and-see’ mode vs. the dovish stance from its G10 peers, the dollar’s safe haven appeal and the status of ‘global reserve currency’.
US Dollar Index relevant levels
At the moment, the pair is losing 0.03% at 97.93 a breakout of 98.45 (monthly high Nov.13) would open the door to 99.25 (high Oct.8) and then 99.67 (2019 high Oct.1). On the other hand, immediate contention is located at 97.68 (monthly low Nov.18) seconded by 97.57 (200-day SMA) and finally 97.11 (monthly low Nov.1).


---
tags:
- dem
- elevation
- las
- lidar
- raster
- terrain
- topographic
author:
display_name: Rick Kelson
email<EMAIL_ADDRESS>date: 2013-02-20 17:29:07 -0700
title: 2011 1 Meter LiDAR Elevation Data
categories: []
1Meter:
downloads:
- url: https://raster.utah.gov/?cat=1%20Meter%20%7B2011%20LiDAR%7D
label: 1 meter Bare Earth DEMs
- url: http://opentopo.sdsc.edu/gridsphere/gridsphere?gs_action=lidarDataset&cid=geonlidarframeportlet&opentopoID=OTLAS.042013.26912.1
label: All available 2011 LiDAR products from Open Topography
updates:
- 2011
---
{% include abstract.html
name="2011 1 Meter LiDAR Elevation Data"
stewards=""
type="img and las format LiDAR"
webapp="https://raster.utah.gov/?cat=1%20Meter%20%7B2011%20LiDAR%7D"
abstract="AGRC has 1 meter LiDAR in .img
and .las
format for various areas of the state collected during 2011." %}
The DEMs are available from our FTP site but the DSM and .85 meter classified point clouds are available {% include contact.html subject=page.title contact=site.data.contacts.elevation text='by request from' hide-punctuation=true %} or from Open Topography. The areas include the north, east, and south sides of the Great Salt Lake, Cedar Valley, Hurricane Fault, and more.
Use this geodatabase or this collection of shapefiles containing the tile indices and boundaries to determine what imagery files to download. The LiDAR DEM files are in a .img
format and are around 10 mb per 2,000x2,000 meter block. This data has a UTM NAD83 NAVD88 Meters zone 12 Geoid 08 projection.
{% include contact.html subject=page.title contact=site.data.contacts.elevation %}


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