org.apache.lucene.util.cache

Class SimpleMapCache

java.lang.Object

org.apache.lucene.util.cache.Cache

org.apache.lucene.util.cache.SimpleMapCache

Direct Known Subclasses:

SimpleLRUCache

public class SimpleMapCache
extends Cache

Simple cache implementation that uses a HashMap to store (key, value) pairs. This cache is not synchronized, use Cache.synchronizedCache(Cache) if needed.

Constructor Summary

Constructors

Constructor and Description
SimpleMapCache()
SimpleMapCache(java.util.Map map)

Method Summary

Modifier and Type	Method and Description
void	close() Closes the cache.
boolean	containsKey(java.lang.Object key) Returns whether the given key is in this cache.
java.lang.Object	get(java.lang.Object key) Returns the value for the given key.
java.util.Set	keySet() Returns a Set containing all keys in this cache.
void	put(java.lang.Object key, java.lang.Object value) Puts a (key, value)-pair into the cache.

Methods inherited from class org.apache.lucene.util.cache.Cache

synchronizedCache

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleMapCache

public SimpleMapCache()

SimpleMapCache

public SimpleMapCache(java.util.Map map)

Method Detail

get

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

Description copied from class: Cache

Returns the value for the given key.

Specified by:

get in class Cache

put

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

Description copied from class: Cache

Puts a (key, value)-pair into the cache.

Specified by:

put in class Cache

close

public void close()

Description copied from class: Cache

Closes the cache.

Specified by:

close in class Cache

containsKey

public boolean containsKey(java.lang.Object key)

Description copied from class: Cache

Returns whether the given key is in this cache.

Specified by:

containsKey in class Cache

keySet

public java.util.Set keySet()

Returns a Set containing all keys in this cache.