java.util

Class AbstractMap.SimpleImmutableEntry<K,V>

java.lang.Object

java.util.AbstractMap.SimpleImmutableEntry<K,V>

All Implemented Interfaces:

Map.Entry<K,V>

Enclosing class:

AbstractMap<K,V>

public static class AbstractMap.SimpleImmutableEntry<K,V>
extends Object
implements Map.Entry<K,V>

A class containing an immutable key and value. The implementation of Entry#setValue(V) for this class simply throws an UnsupportedOperationException, thus preventing changes being made. This is useful when a static thread-safe view of a map is required.

Since:

1.6

Constructor Summary

Constructors

Constructor and Description
SimpleImmutableEntry(K key, V value)
SimpleImmutableEntry(Map.Entry<? extends K,? extends V> entry)

Method Summary

Modifier and Type	Method and Description
K	getKey() Get the key corresponding to this entry.
V	getValue() Get the value corresponding to this entry.
V	setValue(V value) Replaces the value with the specified object (optional operation).

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.Map.Entry

equals, hashCode

Constructor Detail

SimpleImmutableEntry

public SimpleImmutableEntry(K key,
                            V value)

SimpleImmutableEntry

public SimpleImmutableEntry(Map.Entry<? extends K,? extends V> entry)

Method Detail

getKey

public K getKey()

Description copied from interface: Map.Entry

Get the key corresponding to this entry.

Specified by:

getKey in interface Map.Entry<K,V>

Returns:

the key

getValue

public V getValue()

Description copied from interface: Map.Entry

Get the value corresponding to this entry. If you already called Iterator.remove(), this is undefined.

Specified by:

getValue in interface Map.Entry<K,V>

Returns:

the value

setValue

public V setValue(V value)

Description copied from interface: Map.Entry

Replaces the value with the specified object (optional operation). This writes through to the map, and is undefined if you already called Iterator.remove().

Specified by:

setValue in interface Map.Entry<K,V>

Parameters:

value - the new value to store

Returns:

the old value