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Java Source Code / Java Documentation » Database ORM » db ojb » org.apache.ojb.broker.cache 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.apache.ojb.broker.cache.MaterializationCache

MaterializationCache
public class MaterializationCache implements ObjectCacheInternal(Code)
A wrapper class for ObjectCache implementations used to materialize object graphs and push the fully materialized object to the real object cache. To avoid passing of partial materialized objects to cache this class act as a temporary storage for unmaterialized (new read or refreshed) objects.
author:
   Armin Waibel
version:
   $Id: MaterializationCache.java,v 1.1.2.6 2005/12/21 22:24:15 tomdz Exp $

Inner Class :final static class ObjectEntry


Constructor Summary
 MaterializationCache(CacheDistributor cache)
    

Method Summary
public  voidcache(Identity oid, Object obj)
    
public  booleancacheIfNew(Identity oid, Object obj)
    
public  voidclear()
    
public  voiddisableMaterializationCache()
    
public  voiddoInternalCache(Identity oid, Object obj, int type)
    
public  voiddoLocalClear()
     Clears the internal used cache for object materialization.
public  ObjectdoLocalLookup(Identity oid)
    
public  voiddoLocalRemove(Identity oid)
    
public  voidenableMaterializationCache()
     For internal use only! Helper method to guarantee that only full materialized objects will be pushed to the application cache regardless if an local PB transaction is running or not.
public  booleanisEnabledMaterialisationCache()
     Returns true if the materialisation cache is enabled, otherwise false.
public  Objectlookup(Identity oid)
    
public  voidremove(Identity oid)
    


Constructor Detail
MaterializationCache
MaterializationCache(CacheDistributor cache)(Code)




Method Detail
cache
public void cache(Identity oid, Object obj)(Code)



cacheIfNew
public boolean cacheIfNew(Identity oid, Object obj)(Code)

See Also:   ObjectCacheInternal.cacheIfNew(org.apache.ojb.broker.IdentityObject)



clear
public void clear()(Code)



disableMaterializationCache
public void disableMaterializationCache()(Code)

See Also:   MaterializationCache.enableMaterializationCache()



doInternalCache
public void doInternalCache(Identity oid, Object obj, int type)(Code)



doLocalClear
public void doLocalClear()(Code)
Clears the internal used cache for object materialization.



doLocalLookup
public Object doLocalLookup(Identity oid)(Code)



doLocalRemove
public void doLocalRemove(Identity oid)(Code)



enableMaterializationCache
public void enableMaterializationCache()(Code)
For internal use only! Helper method to guarantee that only full materialized objects will be pushed to the application cache regardless if an local PB transaction is running or not. When a complex object is materialized there will be nested calls to the same PB instance methods, e.g. materialization of a referenced object which itself have several references, ...
This method and MaterializationCache.disableMaterializationCache() are used to delimit nested calls and to detect the end of an object materialization and avoid endless loops on circular references.
If an code block with 'enabledMaterializationCache' throws an exception, in catch-block method MaterializationCache.doLocalClear() have to be called.



isEnabledMaterialisationCache
public boolean isEnabledMaterialisationCache()(Code)
Returns true if the materialisation cache is enabled, otherwise false.



lookup
public Object lookup(Identity oid)(Code)



remove
public void remove(Identity oid)(Code)



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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