org.jacorb.util
Class IdentityHashMap
java.lang.Object
java.util.AbstractMap
java.util.HashMap
org.jacorb.util.IdentityHashMap
- All Implemented Interfaces:
- java.io.Serializable, java.lang.Cloneable, java.util.Map
public class IdentityHashMap
- extends java.util.HashMap
A simple implementation of an IdentityHashMap, as it is introduced in
JDK 1.4. This version here is not fully implemented and not particularly
efficient, and serves only as a substitute when running under earlier JDKs.
(In an IdentityHashMap, two keys k1 and k2 are considered equal if and only
if k1 == k2.)
- Version:
- $Id: IdentityHashMap.java,v 1.1 2003/11/11 23:03:13 andre.spiegel Exp $
- Author:
- Andre Spiegel
- See Also:
- Serialized Form
Method Summary |
boolean |
containsKey(java.lang.Object key)
|
boolean |
containsValue(java.lang.Object value)
|
java.util.Set |
entrySet()
|
java.lang.Object |
get(java.lang.Object key)
|
java.util.Set |
keySet()
|
java.lang.Object |
put(java.lang.Object key,
java.lang.Object value)
|
void |
putAll(java.util.Map m)
|
java.lang.Object |
remove(java.lang.Object key)
|
Methods inherited from class java.util.HashMap |
clear, clone, isEmpty, size, values |
Methods inherited from class java.util.AbstractMap |
equals, hashCode, toString |
Methods inherited from class java.lang.Object |
finalize, getClass, notify, notifyAll, wait, wait, wait |
Methods inherited from interface java.util.Map |
equals, hashCode |
IdentityHashMap
public IdentityHashMap()
put
public java.lang.Object put(java.lang.Object key,
java.lang.Object value)
- Specified by:
put
in interface java.util.Map
- Overrides:
put
in class java.util.HashMap
get
public java.lang.Object get(java.lang.Object key)
- Specified by:
get
in interface java.util.Map
- Overrides:
get
in class java.util.HashMap
remove
public java.lang.Object remove(java.lang.Object key)
- Specified by:
remove
in interface java.util.Map
- Overrides:
remove
in class java.util.HashMap
containsKey
public boolean containsKey(java.lang.Object key)
- Specified by:
containsKey
in interface java.util.Map
- Overrides:
containsKey
in class java.util.HashMap
containsValue
public boolean containsValue(java.lang.Object value)
- Specified by:
containsValue
in interface java.util.Map
- Overrides:
containsValue
in class java.util.HashMap
entrySet
public java.util.Set entrySet()
- Specified by:
entrySet
in interface java.util.Map
- Overrides:
entrySet
in class java.util.HashMap
keySet
public java.util.Set keySet()
- Specified by:
keySet
in interface java.util.Map
- Overrides:
keySet
in class java.util.HashMap
putAll
public void putAll(java.util.Map m)
- Specified by:
putAll
in interface java.util.Map
- Overrides:
putAll
in class java.util.HashMap