oemware.core.util
Class LruMap<K,V>

java.lang.Object
  oemware.core.util.LruMap<K,V>

All Implemented Interfaces:

java.util.Map<K,V>

public class LruMap<K,V>
extends java.lang.Object
implements java.util.Map<K,V>

An lru linked hash map. Access to this map is thread-safe. This class also supports an optional eviction handler. To handle old data that is removed from the map.

Nested Class Summary

static interface

LruMap.EvictionHandler<K,V> The eviction handler interface.

Nested classes/interfaces inherited from interface java.util.Map

java.util.Map.Entry<K,V>

Constructor Summary

LruMap(int pSize)
Create a new lru map.

LruMap(int pSize, LruMap.EvictionHandler<K,V> pHandler)
Create a new lru linked hash map.

Method Summary

void	clear()
boolean	containsKey(java.lang.Object pKey)
boolean	containsValue(java.lang.Object pValue)
java.util.Set<java.util.Map.Entry<K,V>>	entrySet()
boolean	equals(java.lang.Object pValue)
V	get(java.lang.Object pKey)
int	hashCode()
boolean	isEmpty()
java.util.Set<K>	keySet()
V	put(K pKey, V pValue)
void	putAll(java.util.Map<? extends K,? extends V> pValues)
V	remove(java.lang.Object pKey)
int	size()
java.util.Collection<V>	values()

Methods inherited from class java.lang.Object

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

Constructor Detail

LruMap

public LruMap(int pSize)

Create a new lru map.

Parameters:

pSize - The max size of the map.

LruMap

public LruMap(int pSize,
              LruMap.EvictionHandler<K,V> pHandler)

Create a new lru linked hash map.

Parameters:

pSize - The max size of the map.

pHandler - The optional eviction handler.

Method Detail

clear

public final void clear()

Specified by:

clear in interface java.util.Map<K,V>

size

public final int size()

Specified by:

size in interface java.util.Map<K,V>

values

public final java.util.Collection<V> values()

Specified by:

values in interface java.util.Map<K,V>

hashCode

public final int hashCode()

Specified by:

hashCode in interface java.util.Map<K,V>

Overrides:

hashCode in class java.lang.Object

get

public final V get(java.lang.Object pKey)

Specified by:

get in interface java.util.Map<K,V>

containsKey

public final boolean containsKey(java.lang.Object pKey)

Specified by:

containsKey in interface java.util.Map<K,V>

containsValue

public final boolean containsValue(java.lang.Object pValue)

Specified by:

containsValue in interface java.util.Map<K,V>

entrySet

public final java.util.Set<java.util.Map.Entry<K,V>> entrySet()

Specified by:

entrySet in interface java.util.Map<K,V>

isEmpty

public final boolean isEmpty()

Specified by:

isEmpty in interface java.util.Map<K,V>

keySet

public final java.util.Set<K> keySet()

Specified by:

keySet in interface java.util.Map<K,V>

put

public final V put(K pKey,
                   V pValue)

Specified by:

put in interface java.util.Map<K,V>

remove

public final V remove(java.lang.Object pKey)

Specified by:

remove in interface java.util.Map<K,V>

putAll

public final void putAll(java.util.Map<? extends K,? extends V> pValues)

Specified by:

putAll in interface java.util.Map<K,V>

equals

public final boolean equals(java.lang.Object pValue)

Specified by:

equals in interface java.util.Map<K,V>

Overrides:

equals in class java.lang.Object