ro.isdc.wro.util

Class LazyInitializer<T>

java.lang.Object

ro.isdc.wro.util.LazyInitializer<T>

Direct Known Subclasses:

DestroyableLazyInitializer, LazyInitializerDecorator

public abstract class LazyInitializer<T>
extends Object

A clone of LazyInitializer, which doesn't throw any checked exception when get method is invoked.

Since:

1.4.6

Author:

Alex Objelean

Constructor Summary

Constructors

Constructor and Description
LazyInitializer()

Method Summary

Methods

Modifier and Type	Method and Description
T	get() Returns the object wrapped by this instance.
protected abstract T	initialize() Creates and initializes the object managed by this LazyInitializer.
boolean	isInitialized()

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

get

public final T get()

Returns the object wrapped by this instance. On first access the object is created. After that it is cached and can be accessed pretty fast.

Returns:

the object initialized by this LazyInitializer the object

isInitialized

public final boolean isInitialized()

Returns:

true if the object was already initialized.

initialize

protected abstract T initialize()

Creates and initializes the object managed by this LazyInitializer. This method is called by get() when the object is accessed for the first time. An implementation can focus on the creation of the object. No synchronization is needed, as this is already handled by get().

Returns:

the managed data object