org.apache.commons.collections.keyvalue

Class UnmodifiableMapEntry

Implemented Interfaces:
Map.Entry, KeyValue, Unmodifiable

public final class UnmodifiableMapEntry
extends AbstractMapEntry
implements Unmodifiable

A java.util.Map.Entry that throws UnsupportedOperationException when setValue is called.
Version:
$Revision: 1.3 $ $Date: 2004/02/18 01:00:08 $
Author:
Stephen Colebourne
Since:
Commons Collections 3.0

Field Summary

Fields inherited from class org.apache.commons.collections.keyvalue.AbstractKeyValue

key, value

Constructor Summary

UnmodifiableMapEntry(Map.Entry entry)
Constructs a new entry from the specified MapEntry.
UnmodifiableMapEntry(Object key, Object value)
Constructs a new entry with the specified key and given value.
UnmodifiableMapEntry(KeyValue pair)
Constructs a new entry from the specified KeyValue.

Method Summary

Object
setValue(Object value)
Throws UnsupportedOperationException.

Methods inherited from class org.apache.commons.collections.keyvalue.AbstractMapEntry

equals, hashCode, setValue

Methods inherited from class org.apache.commons.collections.keyvalue.AbstractKeyValue

getKey, getValue, toString

Constructor Details

UnmodifiableMapEntry

public UnmodifiableMapEntry(Map.Entry entry)
Constructs a new entry from the specified MapEntry.
Parameters:
entry - the entry to copy, must not be null

UnmodifiableMapEntry

public UnmodifiableMapEntry(Object key,
                            Object value)
Constructs a new entry with the specified key and given value.
Parameters:
key - the key for the entry, may be null
value - the value for the entry, may be null

UnmodifiableMapEntry

public UnmodifiableMapEntry(KeyValue pair)
Constructs a new entry from the specified KeyValue.
Parameters:
pair - the pair to copy, must not be null

Method Details

setValue

public Object setValue(Object value)
Throws UnsupportedOperationException.
Overrides:
setValue in interface AbstractMapEntry
Parameters:
value - the new value
Returns:
the previous value

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