net.sourceforge.jaulp.collections
Class MapUtils

java.lang.Object
  net.sourceforge.jaulp.collections.MapUtils

public class MapUtils
extends java.lang.Object

Utility class for the use of Map object.

Version:

1.0

Author:

Asterios Raptis

Constructor Summary

MapUtils()

Method Summary

static <K,V> K	getKeyFromValue(java.util.Map<K,V> map, V value) Returns the first founded key from the given value or null if nothing is found.
static <K,V> java.util.Collection<K>	getKeysFromValue(java.util.Map<K,V> map, V value) Returns a Collection from all founded keys from the given value or null if nothing found.
static <K,V> void	printMap(java.util.Map<K,V> msg) The Method printMap prints the HashMap to the console.
static <T> java.util.Map<T,T>	toGenericMap(T[][] twoDimArray) Converts a two dimensional Array to a Map.
static java.util.Map<java.lang.String,java.lang.String>	toMap(java.lang.String[][] twoDimArray) Converts a two dimensional String Array to a Map.

Methods inherited from class java.lang.Object

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

Constructor Detail

MapUtils

public MapUtils()

Method Detail

getKeyFromValue

public static <K,V> K getKeyFromValue(java.util.Map<K,V> map,
                                      V value)

Returns the first founded key from the given value or null if nothing is found.

Parameters:

map - The Map.

value - The value.

Returns:

Returns the first key from the given value or null if nothing found.

getKeysFromValue

public static <K,V> java.util.Collection<K> getKeysFromValue(java.util.Map<K,V> map,
                                                             V value)

Returns a Collection from all founded keys from the given value or null if nothing found.

Parameters:

map - The Map.

value - The value.

Returns:

Returns the key from the given value or an empty Collection if nothing found.

printMap

public static <K,V> void printMap(java.util.Map<K,V> msg)

The Method printMap prints the HashMap to the console.

Parameters:

msg - The map to print.

toGenericMap

public static <T> java.util.Map<T,T> toGenericMap(T[][] twoDimArray)

Converts a two dimensional Array to a Map.

Parameters:

twoDimArray - The two dimensional Array.

Returns:

The map produced from the two dimensional Array.

toMap

public static java.util.Map<java.lang.String,java.lang.String> toMap(java.lang.String[][] twoDimArray)

Converts a two dimensional String Array to a Map.

Parameters:

twoDimArray - The two dimensional String Array.

Returns:

The map produced from the two dimensional String Array.