etm.core.util.collection.EDU.oswego.cs.dl.util.concurrent
Class ConcurrentReaderHashMap.Entry

java.lang.Object
  extended by etm.core.util.collection.EDU.oswego.cs.dl.util.concurrent.ConcurrentReaderHashMap.Entry
All Implemented Interfaces:
java.util.Map.Entry
Enclosing class:
ConcurrentReaderHashMap

protected static class ConcurrentReaderHashMap.Entry
extends java.lang.Object
implements java.util.Map.Entry

ConcurrentReaderHashMap collision list entry.


Field Summary
protected  int hash
           
protected  java.lang.Object key
           
protected  ConcurrentReaderHashMap.Entry next
           
protected  java.lang.Object value
           
 
Method Summary
 boolean equals(java.lang.Object o)
           
 java.lang.Object getKey()
           
 java.lang.Object getValue()
          Get the value.
 int hashCode()
           
 java.lang.Object setValue(java.lang.Object value)
          Set the value of this entry.
 java.lang.String toString()
           
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Field Detail

hash

protected final int hash

key

protected final java.lang.Object key

next

protected final ConcurrentReaderHashMap.Entry next

value

protected volatile java.lang.Object value
Method Detail

getKey

public java.lang.Object getKey()
Specified by:
getKey in interface java.util.Map.Entry

getValue

public java.lang.Object getValue()
Get the value. Note: In an entrySet or entrySet.iterator, unless the set or iterator is used under synchronization of the table as a whole (or you can otherwise guarantee lack of concurrent modification), getValue might return null, reflecting the fact that the entry has been concurrently removed. However, there are no assurances that concurrent removals will be reflected using this method.

Specified by:
getValue in interface java.util.Map.Entry
Returns:
the current value, or null if the entry has been detectably removed.

setValue

public java.lang.Object setValue(java.lang.Object value)
Set the value of this entry. Note: In an entrySet or entrySet.iterator), unless the set or iterator is used under synchronization of the table as a whole (or you can otherwise guarantee lack of concurrent modification), setValue is not strictly guaranteed to actually replace the value field obtained via the get operation of the underlying hash table in multithreaded applications. If iterator-wide synchronization is not used, and any other concurrent put or remove operations occur, sometimes even to other entries, then this change is not guaranteed to be reflected in the hash table. (It might, or it might not. There are no assurances either way.)

Specified by:
setValue in interface java.util.Map.Entry
Parameters:
value - the new value.
Returns:
the previous value, or null if entry has been detectably removed.
Throws:
java.lang.NullPointerException - if the value is null.

equals

public boolean equals(java.lang.Object o)
Specified by:
equals in interface java.util.Map.Entry
Overrides:
equals in class java.lang.Object

hashCode

public int hashCode()
Specified by:
hashCode in interface java.util.Map.Entry
Overrides:
hashCode in class java.lang.Object

toString

public java.lang.String toString()
Overrides:
toString in class java.lang.Object


Copyright © 2004,2005, 2006, 2007 void.fm. All Rights Reserved.