org.mmbase.cache
Class RelatedNodesCache

java.lang.Object
  extended byjava.util.Dictionary
      extended byjava.util.Hashtable
          extended byorg.mmbase.util.LRUHashtable
              extended byorg.mmbase.cache.Cache
                  extended byorg.mmbase.cache.QueryResultCache
                      extended byorg.mmbase.cache.RelatedNodesCache
All Implemented Interfaces:
java.lang.Cloneable, java.util.Map, java.io.Serializable, SizeMeasurable

public class RelatedNodesCache
extends QueryResultCache

Query result cache used for getRelatedNodes from MMObjectNodes. Entries are invalidated on the normal QueryResultCache way, but also if the one node from which the related nodes were requested is removed from the Node Cache itself.

Since:
MMBase-1.7
Version:
$Id: RelatedNodesCache.java,v 1.3 2003/08/29 12:12:27 keesj Exp $
Author:
Michiel Meeuwissen
See Also:
MMObjectNode.getRelatedNodes(), Serialized Form

Nested Class Summary
 
Nested classes inherited from class org.mmbase.util.LRUHashtable
LRUHashtable.LRUEntry, LRUHashtable.LRUEntrySet, LRUHashtable.LRUEntrySetIterator
 
Field Summary
 
Fields inherited from class org.mmbase.cache.Cache
maxEntrySize
 
Method Summary
static RelatedNodesCache getCache()
           
 java.lang.String getDescription()
          Gives a description for this cache type.
 java.lang.String getName()
          Returns a name for this cache type.
 java.lang.Object put(SearchQuery query, java.util.List queryResult)
          Puts a search result in this cache.
 java.lang.Object remove(java.lang.Object key)
          Removes an object from the cache.
 
Methods inherited from class org.mmbase.cache.QueryResultCache
invalidateAll, put, toString
 
Methods inherited from class org.mmbase.cache.Cache
get, getByteSize, getByteSize, getCache, getCaches, getDefaultMaxEntrySize, getMaxEntrySize, getTotalByteSize, isActive, main, putCache, putCache, setActive
 
Methods inherited from class org.mmbase.util.LRUHashtable
clear, clone, elements, entrySet, getCount, getHits, getMisses, getOrderedElements, getOrderedElements, getOrderedEntries, getOrderedEntries, getPuts, getRatio, getSize, getStats, keySet, setSize, size, toString, values
 
Methods inherited from class java.util.Hashtable
contains, containsKey, containsValue, equals, hashCode, isEmpty, keys, putAll, rehash
 
Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait
 

Method Detail

getCache

public static RelatedNodesCache getCache()

getName

public java.lang.String getName()
Description copied from class: Cache
Returns a name for this cache type. Default it is the class name, but this normally will be overriden.

Overrides:
getName in class Cache

getDescription

public java.lang.String getDescription()
Description copied from class: Cache
Gives a description for this cache type. This can be used in cache overviews.

Overrides:
getDescription in class Cache

put

public java.lang.Object put(SearchQuery query,
                            java.util.List queryResult)
Description copied from class: QueryResultCache
Puts a search result in this cache.

Overrides:
put in class QueryResultCache

remove

public java.lang.Object remove(java.lang.Object key)
Description copied from class: QueryResultCache
Removes an object from the cache. It alsos remove the watch from the observers which are watching this entry.

Specified by:
remove in interface java.util.Map
Overrides:
remove in class QueryResultCache
Parameters:
key - A SearchQuery object.


MMBase build 1.7.1.20041002