com.protomatter.util
Class SoftReferenceCache

java.lang.Object
  |
  +--com.protomatter.util.SoftReferenceCache

All Implemented Interfaces:

Cache

Direct Known Subclasses:

ExpiringSoftReferenceCache

public class SoftReferenceCache

extends java.lang.Object

implements Cache

A cache that uses soft references. Values in this cache are expired by the VM in reponse to memory needs. For more information on how this works, see the JavaDoc for the java.lang.ref package.

Constructor Summary

SoftReferenceCache()
Create a new cache.

Method Summary

void	clear() Clear the entire cache.
void	clear(java.lang.Object key) Clear the value in the cache at the given key.
java.lang.Object	get(java.lang.Object key) Get a value from the cache at the given key.
void	put(java.lang.Object key, java.lang.Object val) Put a value into the cache, possibly clobbering the old value if one exists.

Methods inherited from class java.lang.Object

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

Constructor Detail

SoftReferenceCache

public SoftReferenceCache()

Create a new cache.

Method Detail

put

public void put(java.lang.Object key,
                java.lang.Object val)

Put a value into the cache, possibly clobbering the old value if one exists.

Specified by:

put in interface Cache

get

public java.lang.Object get(java.lang.Object key)

Get a value from the cache at the given key.

Specified by:

get in interface Cache

Returns:

The cached value, or null if no value exists.

clear

public void clear(java.lang.Object key)

Clear the value in the cache at the given key.

Specified by:

clear in interface Cache

clear

public void clear()

Clear the entire cache.

Specified by:

clear in interface Cache