org.springframework.util

Class LinkedMultiValueMap<K,V>

java.lang.Object

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

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

Type Parameters:

K - the key type

V - the value element type

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.util.Map<K,java.util.List<V>>, MultiValueMap<K,V>

public class LinkedMultiValueMap<K,V>
extends MultiValueMapAdapter<K,V>
implements java.io.Serializable, java.lang.Cloneable

Simple implementation of MultiValueMap that wraps a LinkedHashMap, storing multiple values in a LinkedList.

This Map implementation is generally not thread-safe. It is primarily designed for data structures exposed from request objects, for use in a single thread only.

Since:

3.0

Author:

Arjen Poutsma, Juergen Hoeller

See Also:

Serialized Form

Nested Class Summary

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

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

Field Summary

Fields

Modifier and Type	Field and Description
private static long	serialVersionUID

Constructor Summary

Constructors

Constructor and Description
LinkedMultiValueMap() Create a new LinkedMultiValueMap that wraps a LinkedHashMap.
LinkedMultiValueMap(int initialCapacity) Create a new LinkedMultiValueMap that wraps a LinkedHashMap with the given initial capacity.
LinkedMultiValueMap(java.util.Map<K,java.util.List<V>> otherMap) Copy constructor: Create a new LinkedMultiValueMap with the same mappings as the specified Map.

Method Summary

Modifier and Type	Method and Description
LinkedMultiValueMap<K,V>	clone() Create a regular copy of this Map.
LinkedMultiValueMap<K,V>	deepCopy() Create a deep copy of this Map.

Methods inherited from class org.springframework.util.MultiValueMapAdapter

add, addAll, addAll, clear, containsKey, containsValue, entrySet, equals, get, getFirst, hashCode, isEmpty, keySet, put, putAll, remove, set, setAll, size, toSingleValueMap, 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

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

Constructor Detail

LinkedMultiValueMap

public LinkedMultiValueMap()

Create a new LinkedMultiValueMap that wraps a LinkedHashMap.

LinkedMultiValueMap

public LinkedMultiValueMap(int initialCapacity)

Create a new LinkedMultiValueMap that wraps a LinkedHashMap with the given initial capacity.

Parameters:

initialCapacity - the initial capacity

LinkedMultiValueMap

public LinkedMultiValueMap(java.util.Map<K,java.util.List<V>> otherMap)

Copy constructor: Create a new LinkedMultiValueMap with the same mappings as the specified Map. Note that this will be a shallow copy; its value-holding List entries will get reused and therefore cannot get modified independently.

Parameters:

otherMap - the Map whose mappings are to be placed in this Map

See Also:

clone(), deepCopy()

Method Detail

deepCopy

public LinkedMultiValueMap<K,V> deepCopy()

Create a deep copy of this Map.

Returns:

a copy of this Map, including a copy of each value-holding List entry (consistently using an independent modifiable LinkedList for each entry) along the lines of MultiValueMap.addAll semantics

Since:

4.2

See Also:

MultiValueMapAdapter.addAll(MultiValueMap), clone()

clone

public LinkedMultiValueMap<K,V> clone()

Create a regular copy of this Map.

Overrides:

clone in class java.lang.Object

Returns:

a shallow copy of this Map, reusing this Map's value-holding List entries (even if some entries are shared or unmodifiable) along the lines of standard Map.put semantics

Since:

4.2

See Also:

MultiValueMapAdapter.put(Object, List), MultiValueMapAdapter.putAll(Map), LinkedMultiValueMap(Map), deepCopy()