org.apache.commons.collections.keyvalue
Class UnmodifiableMapEntry
java.lang.Object
org.apache.commons.collections.keyvalue.AbstractKeyValue
org.apache.commons.collections.keyvalue.AbstractMapEntry
org.apache.commons.collections.keyvalue.UnmodifiableMapEntry
- All Implemented Interfaces:
- KeyValue, Map.Entry, Unmodifiable
- public final class UnmodifiableMapEntry
- extends AbstractMapEntry
- implements Unmodifiable
A Map.Entry that throws UnsupportedOperationException
when setValue is called.
- Since:
- Commons Collections 3.0
- Version:
- $Revision: 1.3 $ $Date: 2004/02/18 01:00:08 $
- Author:
- Stephen Colebourne
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 nullvalue - 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
- Throws:
NullPointerException - if the entry is null
UnmodifiableMapEntry
public UnmodifiableMapEntry(Map.Entry entry)
- Constructs a new entry from the specified MapEntry.
- Parameters:
entry - the entry to copy, must not be null
- Throws:
NullPointerException - if the entry is null
setValue
public Object setValue(Object value)
- Throws UnsupportedOperationException.
- Specified by:
setValue in interface Map.Entry- Overrides:
setValue in class AbstractMapEntry
- Parameters:
value - the new value
- Returns:
- the previous value
- Throws:
UnsupportedOperationException - always
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