Java Doc for WeakCache.java in  » 6.0-JDK-Modules » j2me » sun » misc » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » 6.0 JDK Modules » j2me » sun.misc 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   java.util.Hashtable
      sun.misc.WeakCache

WeakCache
public class WeakCache extends java.util.Hashtable (Code)
This is a hash table that uses a sun.misc.Ref to store its values. With each operation, this hash table will put a little bit of work into checking for ref's that have been nulled out by the GC. When it detects that this has happened, it removes the corresponding key from the hashtable. This prevents the hashtable from leaking keys.



Constructor Summary
public  WeakCache()
    
public  WeakCache(int initialCapacity)
    

Method Summary
protected synchronized  voiddoSomeCleanup(int amountOfCleanup)
    
public synchronized  Objectget(Object key)
    
public synchronized  Objectput(Object key, Object value)
    
public synchronized  Objectremove(Object key)
    


Constructor Detail
WeakCache
public WeakCache()(Code)



WeakCache
public WeakCache(int initialCapacity)(Code)




Method Detail
doSomeCleanup
protected synchronized void doSomeCleanup(int amountOfCleanup)(Code)



get
public synchronized Object get(Object key)(Code)



put
public synchronized Object put(Object key, Object value)(Code)



remove
public synchronized Object remove(Object key)(Code)



Methods inherited from java.util.Hashtable
public synchronized void clear()(Code)(Java Doc)
public synchronized boolean contains(Object value)(Code)(Java Doc)
public synchronized boolean containsKey(Object key)(Code)(Java Doc)
public synchronized Enumeration elements()(Code)(Java Doc)
public synchronized Object get(Object key)(Code)(Java Doc)
public boolean isEmpty()(Code)(Java Doc)
public synchronized Enumeration keys()(Code)(Java Doc)
public synchronized Object put(Object key, Object value)(Code)(Java Doc)
protected void rehash()(Code)(Java Doc)
public synchronized Object remove(Object key)(Code)(Java Doc)
public int size()(Code)(Java Doc)
public synchronized String toString()(Code)(Java Doc)

Methods inherited from java.lang.Object
public boolean equals(Object obj)(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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