LeaderFollowersHandler (Java Channel Access 2.4.9 API)

java.lang.Object
- com.cosylab.epics.caj.impl.reactor.lf.LeaderFollowersHandler

All Implemented Interfaces:

ReactorHandler, Runnable
```
public class LeaderFollowersHandler
extends Object
implements ReactorHandler, Runnable
```
Decorator pattern to 'decorate' application-specific event processing handler to work with Leader/Followers deisgn pattern. This decorator promotes a new leader thread and disables/enables the handler.

Version:

$id$

Author:

Matej Sekoranja

Field Summary

Fields
Modifier and Type	Field	Description
`protected ReactorHandler`	`handler`	Application-specific event processing handler.
`protected Reactor`	`reactor`	Reactor to serve.
`protected LeaderFollowersThreadPool`	`threadPool`	Leader-followers thread pool.

Constructor Summary

Constructors
Constructor	Description
`LeaderFollowersHandler(Reactor reactor, ReactorHandler handler, LeaderFollowersThreadPool threadPool)`	Constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type Method Description

void handleEvent(SelectionKey key)
Process request of given SelectionKey.

void run()
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - reactor
```
protected Reactor reactor
```
    Reactor to serve.
  - handler
```
protected ReactorHandler handler
```
    Application-specific event processing handler.
  - threadPool
```
protected LeaderFollowersThreadPool threadPool
```
    Leader-followers thread pool.
- Constructor Detail
  - LeaderFollowersHandler
```
public LeaderFollowersHandler(Reactor reactor,
                              ReactorHandler handler,
                              LeaderFollowersThreadPool threadPool)
```
    Constructor.
    
    Parameters:
    
    reactor - reactor to handle.
    
    handler - application-specific event processing handler.
    
    threadPool - leader-followers thread pool.
- Method Detail
  - handleEvent
```
public void handleEvent(SelectionKey key)
```
    Description copied from interface: ReactorHandler
    
    Process request of given SelectionKey.
    
    Specified by:
    
    handleEvent in interface ReactorHandler
    
    Parameters:
    
    key - key to be processed.
    
    See Also:
    
    ReactorHandler.handleEvent(java.nio.channels.SelectionKey)
  - run
```
public void run()
```
    Specified by:
    
    run in interface Runnable
    
    See Also:
    
    Runnable.run()