dk.heick.properties.types.utils

Class MapUtils

java.lang.Object

dk.heick.properties.types.utils.MapUtils

public class MapUtils
extends Object

Static utility methods for Hashtables, HashMaps, HashSets and Map.

Since:

2.0

Author:

Frederik Heick

Constructor Summary

Constructors

Constructor and Description
MapUtils()

Method Summary

Modifier and Type	Method and Description
static <T,K> int	getMaxValueListSize(Map<T,List<K>> map) If key is K and the value is a list of T, then was is max list size for any of the value list of T.
static <T extends Comparable<T>,K> List<T>	getSortedKeys(Map<T,K> map) Returns all the keys as a sorted list from 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

getMaxValueListSize

public static final <T,K> int getMaxValueListSize(Map<T,List<K>> map)

If key is K and the value is a list of T, then was is max list size for any of the value list of T.

Parameters:

map - the map table

Returns:

the maximum number of values for any key in the map.

getSortedKeys

public static final <T extends Comparable<T>,K> List<T> getSortedKeys(Map<T,K> map)

Returns all the keys as a sorted list from a map.

Parameters:

map - the map table

Returns:

all the keys sorted in a list.