MultimapUtils (aksw-commons-collections 0.9.11-SNAPSHOT API)

java.lang.Object

org.aksw.commons.collections.multimaps.MultimapUtils

public class MultimapUtils extends Object

Created by IntelliJ IDEA. User: raven Date: 4/25/11 Time: 9:26 PM To change this template use File | Settings | File Templates.

Constructor Summary

Constructors

Constructor

Description

MultimapUtils()
Method Summary

Modifier and Type

Method

Description

static <K, V> Set<V>

getAll(com.google.common.collect.Multimap<K,V> multiMap, Collection<K> keys)

static <G, T> com.google.common.collect.Multimap<G,T>

groupBy(Iterable<T> items, Function<T,G> itemToGroupKey, com.google.common.collect.Multimap<G,T> result)

static <K, V> com.google.common.collect.ListMultimap<K,V>

newIdentityListMultimap()

static <K, V> com.google.common.collect.SetMultimap<K,V>

newIdentitySetMultimap()

static <K, V> com.google.common.collect.SetMultimap<K,V>

newSetMultimap(boolean identityKeys, boolean identityValues)

static <K, V> Map<K,V>

toMap(Map<K,? extends Collection<V>> mm)

Helper function to convert a multimap into a map.

static <T> Set<T>

transitiveGetBoth(IBiSetMultimap<T,T> map, Object key)

A transitive get in both directions

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- MultimapUtils
  
  public MultimapUtils()
Method Details
- groupBy
  
  public static <G, T> com.google.common.collect.Multimap<G,T> groupBy(Iterable<T> items, Function<T,G> itemToGroupKey, com.google.common.collect.Multimap<G,T> result)
- newSetMultimap
  
  public static <K, V> com.google.common.collect.SetMultimap<K,V> newSetMultimap(boolean identityKeys, boolean identityValues)
- newIdentitySetMultimap
  
  public static <K, V> com.google.common.collect.SetMultimap<K,V> newIdentitySetMultimap()
- newIdentityListMultimap
  
  public static <K, V> com.google.common.collect.ListMultimap<K,V> newIdentityListMultimap()
- getAll
  
  public static <K, V> Set<V> getAll(com.google.common.collect.Multimap<K,V> multiMap, Collection<K> keys)
- transitiveGetBoth
  
  public static <T> Set<T> transitiveGetBoth(IBiSetMultimap<T,T> map, Object key)
  
  A transitive get in both directions
  
  Parameters:
  
  map -
- toMap
  
  public static <K, V> Map<K,V> toMap(Map<K,? extends Collection<V>> mm)
  
  Helper function to convert a multimap into a map. Each key may only have at most one corresponding value, otherwise an exception will be thrown.
  
  Parameters:
  
  mm -
  
  Returns: