com.agapsys.rcf

Class LazyInitializer<T>

java.lang.Object

com.agapsys.rcf.LazyInitializer<T>

Type Parameters:

T - Type of the object managed by this initializer

public abstract class LazyInitializer<T>
extends Object

Utility class to lazy-initialize objects in a multi-thread environment

Author:

Leandro Oliveira (leandro@agapsys.com)

Constructor Summary

Constructors

Constructor and Description
LazyInitializer()

Method Summary

Modifier and Type	Method and Description
T	getInstance() Return an instance associated with this initializer.
protected T	getLazyInstance() Returns the object associated with this initializer.
void	initialize() Starts the initializer.
boolean	isInitialized() Returns a boolean indicating if instance was initialized.
protected void	onInitialize() Called during initialization.

Methods inherited from class java.lang.Object

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

Constructor Detail

LazyInitializer

public LazyInitializer()

Method Detail

onInitialize

protected void onInitialize()

Called during initialization. Default implementation does nothing.

getLazyInstance

protected T getLazyInstance()

Returns the object associated with this initializer.

Returns:

the object associated with this initializer. Default implementation returns null. This method will be called only once

initialize

public final void initialize()

Starts the initializer.

isInitialized

public final boolean isInitialized()

Returns a boolean indicating if instance was initialized.

Returns:

initialized state

getInstance

public final T getInstance()

Return an instance associated with this initializer. Returned instance will be obtained via getLazyInstance().

Returns:

the instance associated with this initializer.