| java.util.HashMap
 net.sourceforge.jtds.jdbc.cache.SimpleLRUCache
| SimpleLRUCache | | public class SimpleLRUCache extends HashMap (Code) | | Simple LRU cache for any type of object. Implemented as an extended
HashMap with a maximum size and an aggregated List
as LRU queue.
author:
Brett Wooldridge
version:
$Id: SimpleLRUCache.java,v 1.1 2005/04/25 11:46:56 alin_sinpalean Exp $ |
| Constructor Summary | |
| public | SimpleLRUCache(int maxCacheSize)
Constructs a new LRU cache instance. |
| Method Summary | |
| public synchronized void | clear()
Overrides clear() to also clear the LRU list. | | public synchronized Object | get(Object key)
Overrides get() so that it also updates the LRU list. | | public synchronized Object | put(Object key, Object value)
Overrides put() so that it also updates the LRU list. | | public synchronized Object | remove(Object key)
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| SimpleLRUCache | | public SimpleLRUCache(int maxCacheSize)(Code) | | Constructs a new LRU cache instance.
Parameters:
maxCacheSize - the maximum number of entries in this cache beforeentries are aged off |
| clear | | public synchronized void clear()(Code) | | Overrides clear() to also clear the LRU list.
|
| get | | public synchronized Object get(Object key)(Code) | | Overrides get() so that it also updates the LRU list.
Parameters:
key - key with which the expected value is associated the value to which the cache maps the specified key, ornull if the map contains no mapping for this key |
| put | | public synchronized Object put(Object key, Object value)(Code) | | Overrides put() so that it also updates the LRU list.
Parameters:
key - key with which the specified value is to be associated
Parameters:
value - value to be associated with the key previous value associated with key or null if therewas no mapping for key; a null return can alsoindicate that the cache previously associated nullwith the specified key
See Also: java.util.Map.put(ObjectObject) |
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