org.springframework.util

Interface MultiValueMap<K,V>

All Superinterfaces:

Map<K,List<V>>

All Known Implementing Classes:

HttpHeaders, LinkedMultiValueMap

public interface MultiValueMap<K,V>
extends Map<K,List<V>>

Extension of the Map interface that stores multiple values.

Since:

3.0

Author:

Arjen Poutsma

Nested Class Summary

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

Map.Entry<K,V>

Method Summary

Methods

Modifier and Type	Method and Description
void	add(K key, V value) Add the given single value to the current list of values for the given key.
V	getFirst(K key) Return the first value for the given key.
void	set(K key, V value) Set the given single value under the given key.
void	setAll(Map<K,V> values) Set the given values under.
Map<K,V>	toSingleValueMap() Returns the first values contained in this MultiValueMap.

Methods inherited from interface java.util.Map

clear, containsKey, containsValue, entrySet, equals, get, hashCode, isEmpty, keySet, put, putAll, remove, size, values

Method Detail

getFirst

V getFirst(K key)

Return the first value for the given key.

Parameters:

key - the key

Returns:

the first value for the specified key, or null

add

void add(K key,
       V value)

Add the given single value to the current list of values for the given key.

Parameters:

key - the key

value - the value to be added

set

void set(K key,
       V value)

Set the given single value under the given key.

Parameters:

key - the key

value - the value to set

setAll

void setAll(Map<K,V> values)

Set the given values under.

Parameters:

values - the values.

toSingleValueMap

Map<K,V> toSingleValueMap()

Returns the first values contained in this MultiValueMap.

Returns:

a single value representation of this map