2017 © Pedro Peláez
 

library chainlink

Chainlink offers a drop in implementation of the Chain of Responsibility implementation.

image

symbid/chainlink

Chainlink offers a drop in implementation of the Chain of Responsibility implementation.

  • Thursday, July 28, 2016
  • by rdohms
  • Repository
  • 3 Watchers
  • 4 Stars
  • 147 Installations
  • PHP
  • 1 Dependents
  • 0 Suggesters
  • 2 Forks
  • 0 Open issues
  • 5 Versions
  • 1 % Grown

The README.md

DMS Chainlink

Latest Version Software License Build Status Coverage Status Quality Score Total Downloads, (*1)

Chainlink is a drop in implementation of the Chain of Responsibility pattern. Its a very simple library that helps you avoid boiler plate code in order to provide a chain of responsibility to handle a particular task., (*2)

Installation

Chainlink library has been split so that the Context, the class that implements the chain is isolated in this library and adapters and wrapper for popular frameworks are available in separate packages., (*3)

If you only need the chain implementation, get chainlink by running:, (*4)

composer require dms/chainlink

If you use Symfony or other frameworks, check Packagist for wrappers and adapters., (*5)

Usage

To use chainlink, all you need to do is implement the HandlerInterface on your handlers and register them with a context., (*6)

class MyHandler implements HandlerInterface
{
    // ... fulfill interface ...
}

$handler = new MyHandler();

// Create a Context to chain responsibilities
$context = new DMS\Chainlink\Context();
$context->addHandler($handler);

// Pass in an item to be handled
$context->handle($input);

// You can also get the handler as a return value
$handler = $context->getHandlerFor($input);

// You may have need of returning multiple handlers
$handler = $context->getAllHandlersFor($input);

Its the handler's responsibility to identify which input it is responsible for, the interface contains a handles method that is called for that., (*7)

Order of Chain handling

Sometimes it's useful to influence which handler gets called first. addHandler supports an optional second parameter with a priority integer. The highest number in the chain will be called first., (*8)

// Create a Context to chain responsibilities
$context = new DMS\Chainlink\Context();
$context->addHandler($handler1, 10);
$context->addHandler($handler2, 1000);
$context->addHandler($handler3);

// Pass in an item to be handled
$context->handle($input);

The following handlers will be called in order (provided they can handle the usecase) $handler2 -> $handler1 -> $handler3, (*9)

The Versions

28/07 2016

dev-master

9999999-dev https://github.com/rdohms/chainlink

Chainlink offers a drop in implementation of the Chain of Responsibility implementation.

  Sources   Download

MIT

The Requires

  • php >=5.4.0

 

The Development Requires

by Rafael Dohms

handler dms chain of responsibility

28/07 2016

v0.4

0.4.0.0 https://github.com/rdohms/chainlink

Chainlink offers a drop in implementation of the Chain of Responsibility implementation.

  Sources   Download

MIT

The Requires

  • php >=5.4.0

 

The Development Requires

by Rafael Dohms

handler dms chain of responsibility

26/05 2015

0.3.0

0.3.0.0 https://github.com/Symbid/chainlink

Chainlink offers a drop in implementation of the Chain of Responsibility implementation.

  Sources   Download

MIT

The Requires

  • php >=5.4.0

 

The Development Requires

by Rafael Dohms

handler chain of responsibility symbid

13/02 2015

0.2.0

0.2.0.0 https://github.com/Symbid/chainlink

Chainlink offers a drop in implementation of the Chain of Responsibility implementation.

  Sources   Download

MIT

The Requires

  • php >=5.4.0

 

The Development Requires

by Rafael Dohms

handler chain of responsibility symbid

13/02 2015

0.1.0

0.1.0.0 https://github.com/Symbid/chainlink

Chainlink offers a drop in implementation of the Chain of Responsibility implementation.

  Sources   Download

MIT

The Development Requires

by Rafael Dohms

handler chain of responsibility symbid