provided.client.model.taskUtils

Class SingletonTaskFactoryLoader

java.lang.Object

provided.client.model.taskUtils.SingletonTaskFactoryLoader

All Implemented Interfaces:

ITaskFactoryLoader

public class SingletonTaskFactoryLoader
extends java.lang.Object
implements ITaskFactoryLoader

An implementation of ITaskFactoryLoader that loads ITaskFactory instances defined by a singleton object in a static field of the desired ITask class called "FACTORY".

If this loader attempts to load a non-existent ITask class, an internally-defined ErrorTask instance will be returned. This error task simply echos its constructor parameter when executed.

Author:

Stephen Wong

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private static class	SingletonTaskFactoryLoader.ErrorTask Task used in error situations.

Field Summary

Fields

Modifier and Type	Field and Description
static ITaskFactoryLoader	SINGLETON Singleton instance of this class

Constructor Summary

Constructors

Modifier	Constructor and Description
private	SingletonTaskFactoryLoader() Private constructor for use by singleton only

Method Summary

Modifier and Type	Method and Description
ITaskFactory<?>	load(java.lang.String classname) Dynamically load an ITaskFactory instance given its class name.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

SINGLETON

public static final ITaskFactoryLoader SINGLETON

Singleton instance of this class

Constructor Detail

SingletonTaskFactoryLoader

private SingletonTaskFactoryLoader()

Private constructor for use by singleton only

Method Detail

load

public ITaskFactory<?> load(java.lang.String classname)

Description copied from interface: ITaskFactoryLoader

Dynamically load an ITaskFactory instance given its class name.

Specified by:

load in interface ITaskFactoryLoader

Parameters:

classname - The fully qualified class name of the desired ITaskFactory class.

Returns:

An ITaskFactory instance.