org.aksw.commons.collections
Class MapUtils

java.lang.Object
  org.aksw.commons.collections.MapUtils

public class MapUtils
extends Object

Created by IntelliJ IDEA. User: raven Date: 4/22/11 Time: 2:36 PM To change this template use File | Settings | File Templates.

Constructor Summary

MapUtils()

Method Summary

static <K,V> Map<K,V>	createChainMap(Map<K,?> a, Map<?,V> b)
static <K,V> V	getOrCreate(Map<K,V> map, K key, Class<V> clazz, Object... ctorArgs)
static <K,V> V	getOrElse(Map<? extends K,? extends V> map, K key, V elze)
static <K,V> boolean	isCompatible(Map<K,V> a, Map<K,V> b) Compatible means that merging the two maps would not result in the same key being mapped to distinct values.
static <K,V> boolean	isPartiallyCompatible(Map<K,V> a, Map<K,V> b)
static <K,V> com.google.common.collect.Multimap<V,K>	reverse(Map<K,V> 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

isCompatible

public static <K,V> boolean isCompatible(Map<K,V> a,
                                         Map<K,V> b)

Compatible means that merging the two maps would not result in the same key being mapped to distinct values. Or put differently: The union of the two maps retains a functional mapping.

Type Parameters:

K -

V -

Parameters:

a -

b -

Returns:

isPartiallyCompatible

public static <K,V> boolean isPartiallyCompatible(Map<K,V> a,
                                                  Map<K,V> b)

reverse

public static <K,V> com.google.common.collect.Multimap<V,K> reverse(Map<K,V> map)

getOrElse

public static <K,V> V getOrElse(Map<? extends K,? extends V> map,
                                K key,
                                V elze)

createChainMap

public static <K,V> Map<K,V> createChainMap(Map<K,?> a,
                                            Map<?,V> b)

getOrCreate

public static <K,V> V getOrCreate(Map<K,V> map,
                                  K key,
                                  Class<V> clazz,
                                  Object... ctorArgs)