net.sf.swarmcache
Class UnboundedLRUMap

java.lang.Object
  |
  +--net.sf.swarmcache.UnboundedLRUMap
All Implemented Interfaces:
java.util.Map

public class UnboundedLRUMap
extends java.lang.Object
implements java.util.Map

An LRUMap that allows an unbounded size. This implementation is an amortized O(1) amount slower than the bounded Jakarta Commons LRUMap implementation.

Author:
John Watkinson

Field Summary
static int MINIMUM_SIZE
           
 
Constructor Summary
UnboundedLRUMap()
           
 
Method Summary
 void clear()
           
 boolean containsKey(java.lang.Object key)
           
 boolean containsValue(java.lang.Object value)
           
 java.util.Set entrySet()
           
 boolean equals(java.lang.Object obj)
           
 java.lang.Object get(java.lang.Object key)
           
 java.lang.Object getFirstKey()
           
 boolean isEmpty()
           
 java.util.Set keySet()
           
 java.lang.Object put(java.lang.Object key, java.lang.Object value)
           
 void putAll(java.util.Map t)
           
 java.lang.Object remove(java.lang.Object key)
           
 int size()
           
 java.util.Collection values()
           
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface java.util.Map
hashCode
 

Field Detail

MINIMUM_SIZE

public static final int MINIMUM_SIZE
See Also:
Constant Field Values
Constructor Detail

UnboundedLRUMap

public UnboundedLRUMap()
Method Detail

clear

public void clear()
Specified by:
clear in interface java.util.Map

containsKey

public boolean containsKey(java.lang.Object key)
Specified by:
containsKey in interface java.util.Map

containsValue

public boolean containsValue(java.lang.Object value)
Specified by:
containsValue in interface java.util.Map

entrySet

public java.util.Set entrySet()
Specified by:
entrySet in interface java.util.Map

equals

public boolean equals(java.lang.Object obj)
Specified by:
equals in interface java.util.Map
Overrides:
equals in class java.lang.Object

get

public java.lang.Object get(java.lang.Object key)
Specified by:
get in interface java.util.Map

isEmpty

public boolean isEmpty()
Specified by:
isEmpty in interface java.util.Map

keySet

public java.util.Set keySet()
Specified by:
keySet in interface java.util.Map

put

public java.lang.Object put(java.lang.Object key,
                            java.lang.Object value)
Specified by:
put in interface java.util.Map

putAll

public void putAll(java.util.Map t)
Specified by:
putAll in interface java.util.Map

remove

public java.lang.Object remove(java.lang.Object key)
Specified by:
remove in interface java.util.Map

size

public int size()
Specified by:
size in interface java.util.Map

values

public java.util.Collection values()
Specified by:
values in interface java.util.Map

getFirstKey

public java.lang.Object getFirstKey()