org.omnaest.utils.structure.map
Class MapJoiner

java.lang.Object
  org.omnaest.utils.structure.map.MapJoiner

public class MapJoiner
extends Object

A MapJoiner allows to join two or multiple Map instances by their keys. Or additionally with List instances in combination with a KeyExtractor.

Author:

Omnaest

See Also:

MapUtils.joiner()

Nested Class Summary

static interface	MapJoiner.From<K,VL>
static class	MapJoiner.JoinedValue<V1,V2> Similar to MapJoiner.JoinedValue special for a Map join result containing both values for a shared key
static interface	MapJoiner.JoinResult<K,VL,VR>
static interface	MapJoiner.Predicate<K,VL,VR>
static class	MapJoiner.PredicateIncludingKeySet<K,VL,VR> MapJoiner.Predicate which uses a given Set of keys to return true for any result value which has a key contained within that given Set.

Constructor Summary

MapJoiner()

Method Summary

<K,VL> MapJoiner.From<K,VL>	from(KeyExtractor<K,VL> keyExtractor, Iterable<VL> iterable)
<K,VL> MapJoiner.From<K,VL>	from(Map<K,VL> map)

Methods inherited from class java.lang.Object

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

Constructor Detail

MapJoiner

public MapJoiner()

Method Detail

from

public <K,VL> MapJoiner.From<K,VL> from(Map<K,VL> map)

Parameters:

map - Map

Returns:

MapJoiner.From

See Also:

MapJoiner

from

public <K,VL> MapJoiner.From<K,VL> from(KeyExtractor<K,VL> keyExtractor,
                                        Iterable<VL> iterable)

Parameters:

keyExtractor - KeyExtractor

iterable - Iterable

Returns:

MapJoiner.From

See Also:

MapJoiner