Uses of Interface org.apache.commons.collections4.MultiValuedMap

Uses of Interface
org.apache.commons.collections4.MultiValuedMap

Packages that use MultiValuedMap

Package	Description
org.apache.commons.collections4	This package contains the interfaces and utilities shared across all the subpackages of this component.
org.apache.commons.collections4.multimap	This package contains implementations of the `MultiValuedMap` interfaces.

Uses of MultiValuedMap in org.apache.commons.collections4

Subinterfaces of in

Modifier and Type	Interface and Description
`interface`	`ListValuedMap<K,V>` Defines a map that holds a list of values against each key.
`interface`	`SetValuedMap<K,V>` Defines a map that holds a set of values against each key.

Fields in declared as

Modifier and Type	Field and Description
`static MultiValuedMap`	MultiMapUtils.`EMPTY_MULTI_VALUED_MAP` An empty `UnmodifiableMultiValuedMap`.

Methods in that return

Modifier and Type	Method and Description
`static <K,V> MultiValuedMap<K,V>`	MultiMapUtils.`emptyIfNull(MultiValuedMap<K,V> map)` Returns an immutable empty `MultiValuedMap` if the argument is `null`, or the argument itself otherwise.
`static <K,V> MultiValuedMap<K,V>`	MultiMapUtils.`emptyMultiValuedMap()` Returns immutable EMPTY_MULTI_VALUED_MAP with generic type safety.
`static <K,V> MultiValuedMap<K,V>`	MultiMapUtils.`transformedMultiValuedMap(MultiValuedMap<K,V> map, Transformer<? super K,? extends K> keyTransformer, Transformer<? super V,? extends V> valueTransformer)` Returns a `TransformedMultiValuedMap` backed by the given map.
`static <K,V> MultiValuedMap<K,V>`	MultiMapUtils.`unmodifiableMultiValuedMap(MultiValuedMap<? extends K,? extends V> map)` Returns an `UnmodifiableMultiValuedMap` backed by the given map.

Methods in org.apache.commons.collections4 with parameters of type MultiValuedMap

Modifier and Type	Method and Description
`static <K,V> MultiValuedMap<K,V>`	MultiMapUtils.`emptyIfNull(MultiValuedMap<K,V> map)` Returns an immutable empty `MultiValuedMap` if the argument is `null`, or the argument itself otherwise.
`static <K,V> Collection<V>`	MultiMapUtils.`getCollection(MultiValuedMap<K,V> map, K key)` Gets a Collection from `MultiValuedMap` in a null-safe manner.
`static <K,V> Bag<V>`	MultiMapUtils.`getValuesAsBag(MultiValuedMap<K,V> map, K key)` Gets a Bag from `MultiValuedMap` in a null-safe manner.
`static <K,V> List<V>`	MultiMapUtils.`getValuesAsList(MultiValuedMap<K,V> map, K key)` Gets a List from `MultiValuedMap` in a null-safe manner.
`static <K,V> Set<V>`	MultiMapUtils.`getValuesAsSet(MultiValuedMap<K,V> map, K key)` Gets a Set from `MultiValuedMap` in a null-safe manner.
`static boolean`	MultiMapUtils.`isEmpty(MultiValuedMap<?,?> map)` Null-safe check if the specified `MultiValuedMap` is empty.
`boolean`	MultiValuedMap.`putAll(MultiValuedMap<? extends K,? extends V> map)` Copies all mappings from the specified map to this multi-valued map (optional operation).
`static <K,V> MultiValuedMap<K,V>`	MultiMapUtils.`transformedMultiValuedMap(MultiValuedMap<K,V> map, Transformer<? super K,? extends K> keyTransformer, Transformer<? super V,? extends V> valueTransformer)` Returns a `TransformedMultiValuedMap` backed by the given map.
`static <K,V> MultiValuedMap<K,V>`	MultiMapUtils.`unmodifiableMultiValuedMap(MultiValuedMap<? extends K,? extends V> map)` Returns an `UnmodifiableMultiValuedMap` backed by the given map.

Uses of MultiValuedMap in org.apache.commons.collections4.multimap

Classes in that implement

Modifier and Type	Class and Description
`class`	`AbstractListValuedMap<K,V>` Abstract implementation of the `ListValuedMap` interface to simplify the creation of subclass implementations.
`class`	`AbstractMultiValuedMap<K,V>` Abstract implementation of the `MultiValuedMap` interface to simplify the creation of subclass implementations.
`class`	`AbstractMultiValuedMapDecorator<K,V>` Decorates another `MultiValuedMap` to provide additional behaviour.
`class`	`AbstractSetValuedMap<K,V>` Abstract implementation of the `SetValuedMap` interface to simplify the creation of subclass implementations.
`class`	`ArrayListValuedHashMap<K,V>` Implements a `ListValuedMap`, using a `HashMap` to provide data storage and `ArrayList`s as value collections.
`class`	`HashSetValuedHashMap<K,V>` Implements a `SetValuedMap`, using a `HashMap` to provide data storage and `HashSet`s as value collections.
`class`	`TransformedMultiValuedMap<K,V>` Decorates another `MultiValuedMap` to transform objects that are added.
`class`	`UnmodifiableMultiValuedMap<K,V>` Decorates another `MultiValuedMap` to ensure it can't be altered.

Methods in that return

Modifier and Type	Method and Description
`protected MultiValuedMap<K,V>`	AbstractMultiValuedMapDecorator.`decorated()` The decorated multi-valued map.

Methods in with parameters of type

Modifier and Type	Method and Description
`boolean`	AbstractMultiValuedMap.`putAll(MultiValuedMap<? extends K,? extends V> map)` Copies all of the mappings from the specified MultiValuedMap to this map.
`boolean`	UnmodifiableMultiValuedMap.`putAll(MultiValuedMap<? extends K,? extends V> map)`
`boolean`	AbstractMultiValuedMapDecorator.`putAll(MultiValuedMap<? extends K,? extends V> map)`
`boolean`	TransformedMultiValuedMap.`putAll(MultiValuedMap<? extends K,? extends V> map)`
`static <K,V> TransformedMultiValuedMap<K,V>`	TransformedMultiValuedMap.`transformedMap(MultiValuedMap<K,V> map, Transformer<? super K,? extends K> keyTransformer, Transformer<? super V,? extends V> valueTransformer)` Factory method to create a transforming MultiValuedMap that will transform existing contents of the specified map.
`static <K,V> TransformedMultiValuedMap<K,V>`	TransformedMultiValuedMap.`transformingMap(MultiValuedMap<K,V> map, Transformer<? super K,? extends K> keyTransformer, Transformer<? super V,? extends V> valueTransformer)` Factory method to create a transforming MultiValuedMap.
`static <K,V> UnmodifiableMultiValuedMap<K,V>`	UnmodifiableMultiValuedMap.`unmodifiableMultiValuedMap(MultiValuedMap<? extends K,? extends V> map)` Factory method to create an unmodifiable MultiValuedMap.

Constructors in org.apache.commons.collections4.multimap with parameters of type MultiValuedMap

Constructor and Description
	`AbstractMultiValuedMapDecorator(MultiValuedMap<K,V> map)` Constructor that wraps (not copies).
	`ArrayListValuedHashMap(MultiValuedMap<? extends K,? extends V> map)` Creates an ArrayListValuedHashMap copying all the mappings of the given map.
	`HashSetValuedHashMap(MultiValuedMap<? extends K,? extends V> map)` Creates an HashSetValuedHashMap copying all the mappings of the given map.
	`TransformedMultiValuedMap(MultiValuedMap<K,V> map, Transformer<? super K,? extends K> keyTransformer, Transformer<? super V,? extends V> valueTransformer)` Constructor that wraps (not copies).