org.springframework.util

Class MultiValueMapAdapter<K,V>

java.lang.Object

org.springframework.util.MultiValueMapAdapter<K,V>

Type Parameters:

K - the key type

V - the value element type

All Implemented Interfaces:

Serializable, Map<K,List<V>>, MultiValueMap<K,V>

Direct Known Subclasses:

LinkedMultiValueMap

public class MultiValueMapAdapter<K,V>
extends Object
implements MultiValueMap<K,V>, Serializable

Adapts a given Map to the MultiValueMap contract.

Since:

5.3

Author:

Arjen Poutsma, Juergen Hoeller

See Also:

CollectionUtils.toMultiValueMap(java.util.Map<K, java.util.List<V>>), LinkedMultiValueMap, Serialized Form

Nested Class Summary

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

Map.Entry<K,V>

Constructor Summary

Constructors

Constructor and Description
MultiValueMapAdapter(Map<K,List<V>> targetMap) Wrap the given target Map as a MultiValueMap adapter.

Method Summary

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.
void	addAll(K key, List<? extends V> values) Add all the values of the given list to the current list of values for the given key.
void	addAll(MultiValueMap<K,V> values) Add all the values of the given MultiValueMap to the current values.
void	clear()
boolean	containsKey(Object key)
boolean	containsValue(Object value)
Set<Map.Entry<K,List<V>>>	entrySet()
boolean	equals(Object other)
List<V>	get(Object key)
V	getFirst(K key) Return the first value for the given key.
int	hashCode()
boolean	isEmpty()
Set<K>	keySet()
List<V>	put(K key, List<V> value)
void	putAll(Map<? extends K,? extends List<V>> map)
List<V>	remove(Object 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.
int	size()
Map<K,V>	toSingleValueMap() Return a Map with the first values contained in this MultiValueMap.
String	toString()
Collection<List<V>>	values()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.springframework.util.MultiValueMap

addIfAbsent

Methods inherited from interface java.util.Map

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

Constructor Detail

MultiValueMapAdapter

public MultiValueMapAdapter(Map<K,List<V>> targetMap)

Wrap the given target Map as a MultiValueMap adapter.

Parameters:

targetMap - the plain target Map

Method Detail

getFirst

@Nullable
public V getFirst(K key)

Description copied from interface: MultiValueMap

Return the first value for the given key.

Specified by:

getFirst in interface MultiValueMap<K,V>

Parameters:

key - the key

Returns:

the first value for the specified key, or null if none

add

public void add(K key,
                @Nullable
                V value)

Description copied from interface: MultiValueMap

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

Specified by:

add in interface MultiValueMap<K,V>

Parameters:

key - the key

value - the value to be added

addAll

public void addAll(K key,
                   List<? extends V> values)

Description copied from interface: MultiValueMap

Add all the values of the given list to the current list of values for the given key.

Specified by:

addAll in interface MultiValueMap<K,V>

Parameters:

key - they key

values - the values to be added

addAll

public void addAll(MultiValueMap<K,V> values)

Description copied from interface: MultiValueMap

Add all the values of the given MultiValueMap to the current values.

Specified by:

addAll in interface MultiValueMap<K,V>

Parameters:

values - the values to be added

set

public void set(K key,
                @Nullable
                V value)

Description copied from interface: MultiValueMap

Set the given single value under the given key.

Specified by:

set in interface MultiValueMap<K,V>

Parameters:

key - the key

value - the value to set

setAll

public void setAll(Map<K,V> values)

Description copied from interface: MultiValueMap

Set the given values under.

Specified by:

setAll in interface MultiValueMap<K,V>

Parameters:

values - the values.

toSingleValueMap

public Map<K,V> toSingleValueMap()

Description copied from interface: MultiValueMap

Return a Map with the first values contained in this MultiValueMap.

Specified by:

toSingleValueMap in interface MultiValueMap<K,V>

Returns:

a single value representation of this map

size

public int size()

Specified by:

size in interface Map<K,List<V>>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<K,List<V>>

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Map<K,List<V>>

containsValue

public boolean containsValue(Object value)

Specified by:

containsValue in interface Map<K,List<V>>

get

@Nullable
public List<V> get(Object key)

Specified by:

get in interface Map<K,List<V>>

put

@Nullable
public List<V> put(K key,
                             List<V> value)

Specified by:

put in interface Map<K,List<V>>

remove

@Nullable
public List<V> remove(Object key)

Specified by:

remove in interface Map<K,List<V>>

putAll

public void putAll(Map<? extends K,? extends List<V>> map)

Specified by:

putAll in interface Map<K,List<V>>

clear

public void clear()

Specified by:

clear in interface Map<K,List<V>>

keySet

public Set<K> keySet()

Specified by:

keySet in interface Map<K,List<V>>

values

public Collection<List<V>> values()

Specified by:

values in interface Map<K,List<V>>

entrySet

public Set<Map.Entry<K,List<V>>> entrySet()

Specified by:

entrySet in interface Map<K,List<V>>

equals

public boolean equals(@Nullable
                      Object other)

Specified by:

equals in interface Map<K,List<V>>

Overrides:

equals in class Object

hashCode

public int hashCode()

Specified by:

hashCode in interface Map<K,List<V>>

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object