org.apache.wicket.util
Class LazyInitializer<T>

java.lang.Object
  org.apache.wicket.util.LazyInitializer<T>

Type Parameters:

T - type of value

All Implemented Interfaces:

java.io.Serializable, IClusterable, IProvider<T>

public abstract class LazyInitializer<T>
extends java.lang.Object
implements IProvider<T>, IClusterable

An abstraction for lazy-initializing values. Guarantees only a single instance of the value is created. Initialized value WILL NOT be serialized, and will be recreated upon de-serialization.

Author:

igor

See Also:

Serialized Form

Constructor Summary

LazyInitializer()

Method Summary

protected abstract T	createInstance() Creates the lazy value
T	get() Provides an instance of type T

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 T get()

Description copied from interface: IProvider

Provides an instance of type T

Specified by:

get in interface IProvider<T>

Returns:

instance of type T

createInstance

protected abstract T createInstance()

Creates the lazy value

Returns:

new instance of the value