cn.hutool.core.map.multi

Class CollectionValueMap<K,V>

java.lang.Object

cn.hutool.core.map.MapWrapper<K,C>

cn.hutool.core.map.multi.AbsCollValueMap<K,V,Collection<V>>

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

值作为集合的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
此类可以通过传入函数自定义集合类型的创建规则

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.AbsCollValueMap

DEFAULT_COLLECTION_INITIAL_CAPACITY

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

DEFAULT_INITIAL_CAPACITY, DEFAULT_LOAD_FACTOR

Constructor Summary

Constructors

Constructor and Description
CollectionValueMap() 构造
CollectionValueMap(float loadFactor, Map<? extends K,? extends Collection<V>> m) 构造
CollectionValueMap(float loadFactor, Map<? extends K,? extends Collection<V>> m, Func0<Collection<V>> collectionCreateFunc) 构造
CollectionValueMap(int initialCapacity) 构造
CollectionValueMap(int initialCapacity, float loadFactor) 构造
CollectionValueMap(int initialCapacity, float loadFactor, Func0<Collection<V>> collectionCreateFunc) 构造
CollectionValueMap(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

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

get, putAllValues, putValue, removeValue, removeValues

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

clear, clone, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, equals, forEach, get, 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

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

CollectionValueMap

public CollectionValueMap()

构造

CollectionValueMap

public CollectionValueMap(int initialCapacity)

构造

Parameters:

initialCapacity - 初始大小

CollectionValueMap

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

构造

Parameters:

m - Map

CollectionValueMap

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

构造

Parameters:

loadFactor - 加载因子

m - Map

CollectionValueMap

public CollectionValueMap(int initialCapacity,
                          float loadFactor)

构造

Parameters:

initialCapacity - 初始大小

loadFactor - 加载因子

CollectionValueMap

public CollectionValueMap(float loadFactor,
                          Map<? extends K,? extends Collection<V>> m,
                          Func0<Collection<V>> collectionCreateFunc)

构造

Parameters:

loadFactor - 加载因子

m - Map

collectionCreateFunc - Map中值的集合创建函数

Since:

5.7.4

CollectionValueMap

public CollectionValueMap(int initialCapacity,
                          float loadFactor,
                          Func0<Collection<V>> collectionCreateFunc)

构造

Parameters:

initialCapacity - 初始大小

loadFactor - 加载因子

collectionCreateFunc - Map中值的集合创建函数

Since:

5.7.4

Method Detail

createCollection

protected Collection<V> createCollection()

Description copied from class: AbsCollValueMap

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 AbsCollValueMap<K,V,Collection<V>>

Returns:

Collection