org.incava.ijdk.util

Class MultiMap<K,V>

java.lang.Object

java.util.AbstractMap<K,java.util.Collection<V>>

org.incava.ijdk.util.MultiMap<K,V>

All Implemented Interfaces:

java.util.Map<K,java.util.Collection<V>>

public class MultiMap<K,V>
extends java.util.AbstractMap<K,java.util.Collection<V>>

Maps from a single key to a collection of values, the equivalent of Map<String, List<Integer>>. By default the collection type is ArrayList, but it can be any collection, by overriding getCollection.

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

java.util.AbstractMap.SimpleEntry<K,V>, java.util.AbstractMap.SimpleImmutableEntry<K,V>

Nested classes/interfaces inherited from interface java.util.Map

java.util.Map.Entry<K,V>

Constructor Summary

Constructors

Constructor and Description
MultiMap()

Method Summary

Modifier and Type	Method and Description
java.util.Collection<V>	add(K key, V value)
java.util.Set<java.util.Map.Entry<K,java.util.Collection<V>>>	entrySet()
java.util.Collection<V>	getCollection()
java.util.Collection<V>	put(K key, java.util.Collection<V> value)
java.util.Collection<V>	putEach(K key, V... values)

Methods inherited from class java.util.AbstractMap

clear, clone, containsKey, containsValue, equals, get, hashCode, isEmpty, keySet, putAll, remove, size, toString, values

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll

Constructor Detail

MultiMap

public MultiMap()

Method Detail

entrySet

public java.util.Set<java.util.Map.Entry<K,java.util.Collection<V>>> entrySet()

Specified by:

entrySet in interface java.util.Map<K,java.util.Collection<V>>

Specified by:

entrySet in class java.util.AbstractMap<K,java.util.Collection<V>>

getCollection

public java.util.Collection<V> getCollection()

put

public java.util.Collection<V> put(K key,
                                   java.util.Collection<V> value)

Specified by:

put in interface java.util.Map<K,java.util.Collection<V>>

Overrides:

put in class java.util.AbstractMap<K,java.util.Collection<V>>

add

public java.util.Collection<V> add(K key,
                                   V value)

putEach

@SafeVarargs
public final java.util.Collection<V> putEach(K key,
                                                          V... values)