/* java.lang.ref.SoftReference
Copyright (C) 1999, 2004 Free Software Foundation, Inc.
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
Linking this library statically or dynamically with other modules is
making a combined work based on this library. Thus, the terms and
conditions of the GNU General Public License cover the whole
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permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
modules, and to copy and distribute the resulting executable under
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independent module, the terms and conditions of the license of that
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package java.lang.ref;
/**
* A soft reference will be cleared, if the object is only softly
* reachable and the garbage collection needs more memory. The garbage
* collection will use an intelligent strategy to determine which soft
* references it should clear. This makes a soft reference ideal for
* caches.<br>
*
* @author Jochen Hoenicke
*/
public class SoftReference<T>
extends Reference<T>
{
/**
* Create a new soft reference, that is not registered to any queue.
* @param referent the object we refer to.
*/
public SoftReference(T referent)
{
super(referent);
}
/**
* Create a new soft reference.
* @param referent the object we refer to.
* @param q the reference queue to register on.
* @exception NullPointerException if q is null.
*/
public SoftReference(T referent, ReferenceQueue<? super T> q)
{
super(referent, q);
}
/**
* Returns the object, this reference refers to.
* @return the object, this reference refers to, or null if the
* reference was cleared.
*/
public T get()
{
/* Why is this overloaded???
* Maybe for a kind of LRU strategy. */
return super.get();
}
}