org.brains2b.collection

Class MapEntry<K,V>

java.lang.Object

org.brains2b.collection.MapEntry<K,V>

All Implemented Interfaces:

java.io.Serializable, java.util.Map.Entry

Direct Known Subclasses:

EntryImpl

public class MapEntry<K,V>
extends java.lang.Object
implements java.util.Map.Entry, java.io.Serializable

A straightforward implementation of the Map.Entry interface outside the Map class

Since:

TwelBox 0.30

Version:

0.10.1 [19-06-2007]

Author:

dennis@brains2b.nl

See Also:

Map.Entry, Serialized Form

Constructor Summary

Constructors

Constructor and Description
MapEntry() Default Constructor for MapEntry.
MapEntry(K key) Constructor for MapEntry.
MapEntry(K key, V value) Constructor for MapEntry.

Method Summary

Modifier and Type	Method and Description
static <A,B> java.util.Map<A,B>	createMap(java.util.List<? extends MapEntry<A,B>> list) static method to create a normal Map from a list of MapEntry(s)
boolean	equals(java.lang.Object obj) Compares this EntryImpl to another object to see if they are equal The following rules apply: If comparing a EntryImpl equals returns true if they have the same key If comparing a Object equals returns true if the Object equals the key In all other cases false is returned.
K	getKey()
V	getValue()
int	hashCode()
K	setKey(K key) sets the Key
V	setValue(java.lang.Object value)

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map.Entry

comparingByKey, comparingByKey, comparingByValue, comparingByValue

Constructor Detail

MapEntry

public MapEntry()

Default Constructor for MapEntry.

MapEntry

public MapEntry(K key)

Constructor for MapEntry.

Initializes the MapEntry with key. use setValue to set the value

Parameters:

key - Object

MapEntry

public MapEntry(K key,
                V value)

Constructor for MapEntry.

Initializes the MapEntry with key and value

Parameters:

key - Object

value - Object

Method Detail

createMap

public static final <A,B> java.util.Map<A,B> createMap(java.util.List<? extends MapEntry<A,B>> list)

static method to create a normal Map from a list of MapEntry(s)

Type Parameters:

A - Object type of Key

B - Object type of Value

Parameters:

list - List of MapEntry items with key A and value B

Returns:

Map with key A and value B

getKey

public K getKey()

Specified by:

getKey in interface java.util.Map.Entry

See Also:

Map.Entry.getKey()

getValue

public V getValue()

Specified by:

getValue in interface java.util.Map.Entry

See Also:

Map.Entry.getValue()

setValue

public V setValue(java.lang.Object value)

Specified by:

setValue in interface java.util.Map.Entry

See Also:

setValue(Object)

setKey

public K setKey(K key)

sets the Key

Prefered method is using the Constructor to initialize the object with at least the key instead of setting or updating the key here.

Parameters:

key - String

equals

public boolean equals(java.lang.Object obj)

Compares this EntryImpl to another object to see if they are equal The following rules apply:

• If comparing a EntryImpl equals returns true if they have the same key
• If comparing a Object equals returns true if the Object equals the key
• In all other cases false is returned.

Specified by:

equals in interface java.util.Map.Entry

Overrides:

equals in class java.lang.Object

See Also:

Object.equals(Object)

hashCode

public int hashCode()

Specified by:

hashCode in interface java.util.Map.Entry

Overrides:

hashCode in class java.lang.Object