Package org.apache.openjpa.lib.util.collections

Class DefaultMapEntry<K,V>

java.lang.Object

org.apache.openjpa.lib.util.collections.AbstractKeyValue<K,V>

org.apache.openjpa.lib.util.collections.AbstractMapEntry<K,V>

org.apache.openjpa.lib.util.collections.DefaultMapEntry<K,V>

Type Parameters:

K - the type of keys

V - the type of mapped values

All Implemented Interfaces:

java.util.Map.Entry<K,V>, KeyValue<K,V>

public final class DefaultMapEntry<K,V>
extends AbstractMapEntry<K,V>

A restricted implementation of Map.Entry that prevents the Map.Entry contract from being broken.

Since:

3.0

Constructor Summary

Constructors

Constructor	Description
DefaultMapEntry(java.util.Map.Entry<? extends K,? extends V> entry)	Constructs a new entry from the specified Map.Entry.
DefaultMapEntry(K key, V value)	Constructs a new entry with the specified key and given value.
DefaultMapEntry(KeyValue<? extends K,? extends V> pair)	Constructs a new entry from the specified KeyValue.

Method Summary

Methods inherited from class org.apache.openjpa.lib.util.collections.AbstractMapEntry

equals, hashCode, setValue

Methods inherited from class org.apache.openjpa.lib.util.collections.AbstractKeyValue

getKey, getValue, setKey, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map.Entry

getKey, getValue

Constructor Detail

DefaultMapEntry

public DefaultMapEntry(K key,
                       V 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

DefaultMapEntry

public DefaultMapEntry(KeyValue<? extends K,? extends V> pair)

Constructs a new entry from the specified KeyValue.

Parameters:

pair - the pair to copy, must not be null

Throws:

java.lang.NullPointerException - if the entry is null

DefaultMapEntry

public DefaultMapEntry(java.util.Map.Entry<? extends K,? extends V> entry)

Constructs a new entry from the specified Map.Entry.

Parameters:

entry - the entry to copy, must not be null

Throws:

java.lang.NullPointerException - if the entry is null