wicket.util.concurrent
Class ConcurrentHashMap.Entry
java.lang.Object
wicket.util.concurrent.ConcurrentHashMap.Entry
- All Implemented Interfaces:
- java.util.Map.Entry
- Enclosing class:
- ConcurrentHashMap
protected static class ConcurrentHashMap.Entry
- extends java.lang.Object
- implements java.util.Map.Entry
ConcurrentHashMap collision list entry.
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 |
key
protected final java.lang.Object key
value
protected volatile java.lang.Object value
hash
protected final int hash
next
protected final ConcurrentHashMap.Entry next
getKey
public java.lang.Object getKey()
- Specified by:
getKey
in interface java.util.Map.Entry
- See Also:
Map.Entry.getKey()
getValue
public java.lang.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.
- 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 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.)
- 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
- See Also:
Map.Entry.equals(java.lang.Object)
hashCode
public int hashCode()
- Specified by:
hashCode
in interface java.util.Map.Entry
- Overrides:
hashCode
in class java.lang.Object
- See Also:
Map.Entry.hashCode()
toString
public java.lang.String toString()
- Overrides:
toString
in class java.lang.Object
- See Also:
Object.toString()
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