Java Doc for ObjectCache.java in  » ERP-CRM-Financial » SourceTap-CRM » org » ofbiz » minerva » pool » cache » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » ERP CRM Financial » SourceTap CRM » org.ofbiz.minerva.pool.cache 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


org.ofbiz.minerva.pool.cache.ObjectCache

All known Subclasses:   org.ofbiz.minerva.pool.cache.LeastRecentlyUsedCache,
ObjectCache
public interface ObjectCache (Code)
A caching map. This associates one or more values with a key. When a value is requested for a key, a cached value will be returned if available, and a new value will be generated and cached otherwise. Instances of this interface require a CachedObjectFactory to generate new values, and control the caching in custom ways.
See Also:   org.ofbiz.minerva.pool.cache.CachedObjectFactory
author:
   Aaron Mulder ammulder@alumni.princeton.edu


Field Summary
final public static  intUNLIMITED_SIZE
     When setting the size, this constant means there should be no limit on the size of the cache.


Method Summary
public  voidclose()
     Removes all cached objects and stops the cache.
public  ObjectgetObject(Object key)
     Gets a cached object with the specified key.
public  voidremoveObjects(Object key)
     Removes all objects from the cache that have this key.
public  voidreturnObject(Object key, Object value)
     Returns an object to the cache that is currently in use (checked out via useObject).
public  voidsetSize(int size)
     Sets the maximum number of objects in the cache.
public  ObjectuseObject(Object key)
     Gets a cached object with the specified key.

Field Detail
UNLIMITED_SIZE
final public static int UNLIMITED_SIZE(Code)
When setting the size, this constant means there should be no limit on the size of the cache. This is not recommended under ordinary circumstances.





Method Detail
close
public void close()(Code)
Removes all cached objects and stops the cache.



getObject
public Object getObject(Object key)(Code)
Gets a cached object with the specified key. This is not an exclusive function - any number of clients may get the same object at the same time.
See Also:   ObjectCache.useObject



removeObjects
public void removeObjects(Object key)(Code)
Removes all objects from the cache that have this key. There will only be more than one object with the same key if clients are using useObject and returnObject instead of getObject.



returnObject
public void returnObject(Object key, Object value)(Code)
Returns an object to the cache that is currently in use (checked out via useObject). No other client can use the same object until this method is called. The original client may not continue to use the object after this method is called.
See Also:   ObjectCache.useObject



setSize
public void setSize(int size)(Code)
Sets the maximum number of objects in the cache. If the number of objects is at the limit and a new object is requested, other objects will be dropped from the cache.



useObject
public Object useObject(Object key)(Code)
Gets a cached object with the specified key. This is an exclusive function - no other client may get the same object at the same time. You must return the object using returnObject before another client may reuse this object.
See Also:   ObjectCache.getObject
See Also:   ObjectCache.returnObject



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