EDU.oswego.cs.dl.util.concurrent
Class ConcurrentHashMap.Entry
java.lang.Object
EDU.oswego.cs.dl.util.concurrent.ConcurrentHashMap.Entry
- ConcurrentHashMap
- Map.Entry
protected static class ConcurrentHashMap.Entry
extends java.lang.Object
implements Map.Entry
ConcurrentHashMap collision list entry.
hash
protected final int hash
key
protected final Object key
value
protected Object value
equals
public boolean equals(Object o)
getKey
public Object getKey()
getValue
public Object getValue()
Get the value. Note: In an entrySet or entrySet.iterator,
unless you can 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.
- the current value, or null if the entry has been
detectably removed.
hashCode
public int hashCode()
setValue
public Object setValue(Object value)
Set the value of this entry. Note: In an entrySet or
entrySet.iterator), unless you can 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.)
- the previous value, or null if entry has been detectably
removed.
toString
public String toString()