org.mule.amf.impl.util

Class LazyValue<T>

java.lang.Object

org.mule.amf.impl.util.LazyValue<T>

Type Parameters:

T - the generic type of the provided value

All Implemented Interfaces:

Supplier<T>

public class LazyValue<T>
extends Object
implements Supplier<T>

Provides a value which may be lazily computed.

The value is only computed on the first invokation of get(). Subsequent calls to such method will always return the same value.

This class is thread-safe. When invoking get(), it is guaranteed that the value will be computed only once.

Since:

1.0

Constructor Summary

Constructors

Constructor and Description
LazyValue(Supplier<T> supplier) Creates a new instance which lazily obtains its value from the given supplier.

Method Summary

Modifier and Type	Method and Description
T	get() Returns the lazy value.

Methods inherited from class java.lang.Object

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

Constructor Detail

LazyValue

public LazyValue(Supplier<T> supplier)

Creates a new instance which lazily obtains its value from the given supplier. It is guaranteed that Supplier.get() will only be invoked once. Because this class is thread-safe, the supplier is not required to be.

Parameters:

supplier - A Supplier through which the value is obtained

Method Detail

get

public T get()

Returns the lazy value. If the value has not yet been computed, then it does so

Specified by:

get in interface Supplier<T>

Returns:

the lazy value