cn.hutool.core.map.multi

Class AbsCollValueMap<K,V,C extends Collection<V>>

java.lang.Object

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

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

Type Parameters:

K - 键类型

V - 值类型

C - 集合类型

All Implemented Interfaces:

Serializable, Cloneable, Iterable<Map.Entry<K,C>>, Map<K,C>

Direct Known Subclasses:

CollectionValueMap, ListValueMap, SetValueMap

public abstract class AbsCollValueMap<K,V,C extends Collection<V>>
extends MapWrapper<K,C>

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

Since:

5.7.4

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

Modifier and Type	Field and Description
protected static int	DEFAULT_COLLECTION_INITIAL_CAPACITY 默认集合初始大小

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

DEFAULT_INITIAL_CAPACITY, DEFAULT_LOAD_FACTOR

Constructor Summary

Constructors

Constructor and Description
AbsCollValueMap() 构造
AbsCollValueMap(float loadFactor, Map<? extends K,C> m) 构造
AbsCollValueMap(int initialCapacity) 构造
AbsCollValueMap(int initialCapacity, float loadFactor) 构造
AbsCollValueMap(Map<? extends K,C> m) 构造

Method Summary

Modifier and Type	Method and Description
protected abstract C	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
V	get(K key, int index) 获取值
void	putAllValues(Map<? extends K,? extends Collection<V>> m) 放入所有value
void	putValue(K key, V value) 放入Value 如果键对应值列表有值，加入，否则创建一个新列表后加入
boolean	removeValue(K key, V value) 移除value集合中的某个值
boolean	removeValues(K key, Collection<V> values) 移除value集合中的某些值

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

Field Detail

DEFAULT_COLLECTION_INITIAL_CAPACITY

protected static final int DEFAULT_COLLECTION_INITIAL_CAPACITY

默认集合初始大小

See Also:

Constant Field Values

Constructor Detail

AbsCollValueMap

public AbsCollValueMap()

构造

AbsCollValueMap

public AbsCollValueMap(int initialCapacity)

构造

Parameters:

initialCapacity - 初始大小

AbsCollValueMap

public AbsCollValueMap(Map<? extends K,C> m)

构造

Parameters:

m - Map

AbsCollValueMap

public AbsCollValueMap(float loadFactor,
                       Map<? extends K,C> m)

构造

Parameters:

loadFactor - 加载因子

m - Map

AbsCollValueMap

public AbsCollValueMap(int initialCapacity,
                       float loadFactor)

构造

Parameters:

initialCapacity - 初始大小

loadFactor - 加载因子

Method Detail

putAllValues

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

放入所有value

Parameters:

m - valueMap

Since:

5.7.4

putValue

public void putValue(K key,
                     V value)

放入Value
如果键对应值列表有值，加入，否则创建一个新列表后加入

Parameters:

key - 键

value - 值

get

public V get(K key,
             int index)

获取值

Parameters:

key - 键

index - 第几个值的索引，越界返回null

Returns:

值或null

removeValue

public boolean removeValue(K key,
                           V value)

移除value集合中的某个值

Parameters:

key - 键

value - 集合中的某个值

Returns:

是否删除成功

removeValues

public boolean removeValues(K key,
                            Collection<V> values)

移除value集合中的某些值

Parameters:

key - 键

values - 集合中的某些值

Returns:

是否删除成功

createCollection

protected abstract C 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

Returns:

Collection