gov.lbl.dsd.sea
Class StageManager

java.lang.Object
  gov.lbl.dsd.sea.StageManager

public class StageManager

extends Object

Creates and manages a set of stages; Contains several default factories for commonly used threading policies. By far the most commonly used are QUEUED, POOLED and DIRECT.

Version:

$Revision: 1.17 $, $Date: 2004/09/16 16:57:15 $

Field Summary

static ExecutorFactory	DIRECT Creates and returns DirectExecutor instances.
static ExecutorFactory	POOLED Creates and returns PooledExecutor instances.
static ExecutorFactory	QUEUED Creates and returns QueuedExecutor instances.
static ExecutorFactory	THREADED Creates and returns ThreadedExecutor instances.

Constructor Summary

StageManager()
Creates an instance with the default threading policy.

StageManager(ExecutorFactory executorFactory)
Creates an instance with the given threading policy.

Method Summary

Stage	addStage(Stage stage) Adds the given stage to the set of managed stages.
Stage	createStage(EventHandler handler) Creates and returns a managed stage with the given event handler.
Stage	createStage(String stageName, EventHandler handler) Creates and returns a managed stage with the given name and event handler.
Stage	createStage(String stageName, EventHandler handler, ExceptionHandler exceptionHandler) Creates and returns a managed stage with the given name, event handler and exceptionHandler.
Stage	getStage(String stageName) Returns the managed stage with the given name, or null if no such stage is currently managed.
void	startAll() Starts all managed stages.
void	stopAll() Stops all managed stages.
String	toString() Returns a string representation of the receiver.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

DIRECT

public static final ExecutorFactory DIRECT

Creates and returns DirectExecutor instances.

QUEUED

public static final ExecutorFactory QUEUED

Creates and returns QueuedExecutor instances.

THREADED

public static final ExecutorFactory THREADED

Creates and returns ThreadedExecutor instances.

POOLED

public static final ExecutorFactory POOLED

Creates and returns PooledExecutor instances.

Constructor Detail

StageManager

public StageManager()

Creates an instance with the default threading policy.

StageManager

public StageManager(ExecutorFactory executorFactory)

Creates an instance with the given threading policy.

Method Detail

addStage

public Stage addStage(Stage stage)

Adds the given stage to the set of managed stages.

Returns:

the same stage (for convenience)

createStage

public Stage createStage(EventHandler handler)

Creates and returns a managed stage with the given event handler.

createStage

public Stage createStage(String stageName,
                         EventHandler handler)

Creates and returns a managed stage with the given name and event handler.

createStage

public Stage createStage(String stageName,
                         EventHandler handler,
                         ExceptionHandler exceptionHandler)

Creates and returns a managed stage with the given name, event handler and exceptionHandler.

startAll

public void startAll()

Starts all managed stages.

stopAll

public void stopAll()

Stops all managed stages.

getStage

public Stage getStage(String stageName)

Returns the managed stage with the given name, or null if no such stage is currently managed.

toString

public String toString()

Returns a string representation of the receiver.