org.jboss.msc.value
Class MapEntry<K,V>

java.lang.Object
  org.jboss.msc.value.MapEntry<K,V>

Type Parameters:

K - the key type

V - the value type

All Implemented Interfaces:

Serializable, Map.Entry<K,V>

public final class MapEntry<K,V>
extends Object
implements Map.Entry<K,V>, Serializable

An immutable key-value object for constructing map instances programmatically.

See Also:

Serialized Form

Constructor Summary

MapEntry(K key, V value)
Construct a new instance.

Method Summary

static <K,V> Map<K,V>	addTo(Map<K,V> map, MapEntry<? extends K,? extends V>... entries) Add entries to a map.
static <K,V> MapEntry<K,V>	entry(K key, V value) Construct a new instance.
boolean	equals(MapEntry<?,?> obj) Compare this entry with another.
boolean	equals(Object obj) Compare this entry with another.
K	getKey() Get the map key.
V	getValue() Get the map value.
int	hashCode() Get the hash code of this object.
V	setValue(V value) Unsupported operation.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MapEntry

public MapEntry(K key,
                V value)

Construct a new instance.

Parameters:

key - the map key

value - the map value

Method Detail

entry

public static <K,V> MapEntry<K,V> entry(K key,
                                        V value)

Construct a new instance.

Type Parameters:

K - the key type

V - the value type

Parameters:

key - the map key

value - the map value

Returns:

the entry

getKey

public K getKey()

Get the map key.

Specified by:

getKey in interface Map.Entry<K,V>

Returns:

the map key

getValue

public V getValue()

Get the map value.

Specified by:

getValue in interface Map.Entry<K,V>

Returns:

the map value

setValue

public V setValue(V value)

Unsupported operation.

Specified by:

setValue in interface Map.Entry<K,V>

Parameters:

value - ignored

Returns:

nothing

Throws:

UnsupportedOperationException - always

equals

public boolean equals(Object obj)

Compare this entry with another.

Specified by:

equals in interface Map.Entry<K,V>

Overrides:

equals in class Object

Parameters:

obj - the other entry

Returns:

true if this object equals the other MapEntry instance, false otherwise

equals

public boolean equals(MapEntry<?,?> obj)

Compare this entry with another.

Parameters:

obj - the other entry

Returns:

true if this object equals the other MapEntry instance, false otherwise

hashCode

public int hashCode()

Get the hash code of this object.

Specified by:

hashCode in interface Map.Entry<K,V>

Overrides:

hashCode in class Object

Returns:

the hash code

addTo

public static <K,V> Map<K,V> addTo(Map<K,V> map,
                                   MapEntry<? extends K,? extends V>... entries)

Add entries to a map.

Type Parameters:

K - the key type

V - the value type

Parameters:

map - the map to add to

entries - the entries to add

Returns:

the map