cn.hutool.core.map.multi

Class ListValueMap<K,V>

java.lang.Object

cn.hutool.core.map.MapWrapper<K,Collection<V>>

cn.hutool.core.map.multi.CollectionValueMap<K,V>

cn.hutool.core.map.multi.ListValueMap<K,V>

Type Parameters:

K - 键类型

V - 值类型

All Implemented Interfaces:

Serializable, Cloneable, Iterable<Map.Entry<K,Collection<V>>>, Map<K,Collection<V>>

public class ListValueMap<K,V>
extends CollectionValueMap<K,V>

值作为集合List的Map实现，通过调用putValue可以在相同key时加入多个值，多个值用集合表示

Since:

4.3.3

Author:

looly

See Also:

Serialized Form

Nested Class Summary

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

Map.Entry<K,V>

Field Summary

Fields inherited from class cn.hutool.core.map.multi.CollectionValueMap

DEFAULT_COLLCTION_INITIAL_CAPACITY

Fields inherited from class cn.hutool.core.map.MapWrapper

DEFAULT_INITIAL_CAPACITY, DEFAULT_LOAD_FACTOR

Constructor Summary

Constructors

Constructor and Description
ListValueMap() 构造
ListValueMap(float loadFactor, Map<? extends K,? extends Collection<V>> m) 构造
ListValueMap(int initialCapacity) 构造
ListValueMap(int initialCapacity, float loadFactor) 构造
ListValueMap(Map<? extends K,? extends Collection<V>> m) 构造

Method Summary

Modifier and Type	Method and Description
protected Collection<V>	createCollection() 创建集合 此方法用于创建在putValue后追加值所在的集合，子类实现此方法创建不同类型的集合
List<V>	get(Object key)

Methods inherited from class cn.hutool.core.map.multi.CollectionValueMap

get, putValue

Methods inherited from class cn.hutool.core.map.MapWrapper

clear, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, equals, forEach, getOrDefault, getRaw, hashCode, isEmpty, iterator, keySet, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, toString, values

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

ListValueMap

public ListValueMap()

构造

ListValueMap

public ListValueMap(int initialCapacity)

构造

Parameters:

initialCapacity - 初始大小

ListValueMap

public ListValueMap(Map<? extends K,? extends Collection<V>> m)

构造

Parameters:

m - Map

ListValueMap

public ListValueMap(float loadFactor,
                    Map<? extends K,? extends Collection<V>> m)

构造

Parameters:

loadFactor - 加载因子

m - Map

ListValueMap

public ListValueMap(int initialCapacity,
                    float loadFactor)

构造

Parameters:

initialCapacity - 初始大小

loadFactor - 加载因子

Method Detail

get

public List<V> get(Object key)

Specified by:

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

Overrides:

get in class MapWrapper<K,Collection<V>>

createCollection

protected Collection<V> createCollection()

Description copied from class: CollectionValueMap

创建集合
此方法用于创建在putValue后追加值所在的集合，子类实现此方法创建不同类型的集合

Specified by:

createCollection in class CollectionValueMap<K,V>

Returns:

Collection