TableMap (hutool 5.8.33 API)

java.lang.Object
- cn.hutool.core.map.TableMap<K,V>

Type Parameters:

K - 键类型

V - 值类型

All Implemented Interfaces:

Serializable, Iterable<Map.Entry<K,V>>, Map<K,V>
```
public class TableMap<K,V>
extends Object
implements Map<K,V>, Iterable<Map.Entry<K,V>>, Serializable
```
可重复键和值的Map
通过键值单独建立List方式，使键值对一一对应，实现正向和反向两种查找
无论是正向还是反向，都是遍历列表查找过程，相比标准的HashMap要慢，数据越多越慢

Author:

looly

See Also:

Serialized Form

Nested Class Summary
- Nested classes/interfaces inherited from interface java.util.Map
  Map.Entry<K,V>

Constructor Summary

Constructors
Constructor and Description

TableMap()
构造

TableMap(int size)
构造

TableMap(K[] keys, V[] values)
构造

Constructors
Constructor and Description
`TableMap()` 构造
`TableMap(int size)` 构造
`TableMap(K[] keys, V[] values)` 构造

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`clear()`
`V`	`computeIfPresent(K key, BiFunction<? super K,? super V,? extends V> remappingFunction)`
`boolean`	`containsKey(Object key)`
`boolean`	`containsValue(Object value)`
`Set<Map.Entry<K,V>>`	`entrySet()`
`void`	`forEach(BiConsumer<? super K,? super V> action)`
`V`	`get(Object key)`
`K`	`getKey(V value)` 根据value获得对应的key，只返回找到的第一个value对应的key值
`List<K>`	`getKeys(V value)` 获取指定value对应的所有key
`List<V>`	`getValues(K key)` 获取指定key对应的所有值
`boolean`	`isEmpty()`
`Iterator<Map.Entry<K,V>>`	`iterator()`
`List<K>`	`keys()` 获取所有键，可重复，不可修改
`Set<K>`	`keySet()`
`V`	`put(K key, V value)`
`void`	`putAll(Map<? extends K,? extends V> m)`
`V`	`remove(Object key)` 移除指定的所有键和对应的所有值
`boolean`	`remove(Object key, Object value)`
`V`	`removeByIndex(int index)` 移除指定位置的键值对
`V`	`replace(K key, V value)` 替换指定key的所有值为指定值
`boolean`	`replace(K key, V oldValue, V newValue)`
`void`	`replaceAll(BiFunction<? super K,? super V,? extends V> function)`
`int`	`size()`
`String`	`toString()`
`Collection<V>`	`values()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map
compute, computeIfAbsent, equals, getOrDefault, hashCode, merge, putIfAbsent

Methods inherited from interface java.lang.Iterable
forEach, spliterator

- Constructor Detail
  - TableMap
```
public TableMap()
```
    构造
  - TableMap
```
public TableMap(int size)
```
    构造
    
    Parameters:
    
    size - 初始容量
  - TableMap
```
public TableMap(K[] keys,
                V[] values)
```
    构造
    
    Parameters:
    
    keys - 键列表
    
    values - 值列表
- Method Detail
  - size
```
public int size()
```
    Specified by:
    
    size in interface Map<K,V>
  - isEmpty
```
public boolean isEmpty()
```
    Specified by:
    
    isEmpty in interface Map<K,V>
  - containsKey
```
public boolean containsKey(Object key)
```
    Specified by:
    
    containsKey in interface Map<K,V>
  - containsValue
```
public boolean containsValue(Object value)
```
    Specified by:
    
    containsValue in interface Map<K,V>
  - get
```
public V get(Object key)
```
    Specified by:
    
    get in interface Map<K,V>
  - getKey
```
public K getKey(V value)
```
    根据value获得对应的key，只返回找到的第一个value对应的key值
    
    Parameters:
    
    value - 值
    
    Returns:
    
    键
    
    Since:
    
    5.3.3
  - getValues
```
public List<V> getValues(K key)
```
    获取指定key对应的所有值
    
    Parameters:
    
    key - 键
    
    Returns:
    
    值列表
    
    Since:
    
    5.2.5
  - getKeys
```
public List<K> getKeys(V value)
```
    获取指定value对应的所有key
    
    Parameters:
    
    value - 值
    
    Returns:
    
    值列表
    
    Since:
    
    5.2.5
  - put
```
public V put(K key,
             V value)
```
    Specified by:
    
    put in interface Map<K,V>
  - remove
```
public V remove(Object key)
```
    移除指定的所有键和对应的所有值
    
    Specified by:
    
    remove in interface Map<K,V>
    
    Parameters:
    
    key - 键
    
    Returns:
    
    最后一个移除的值
  - removeByIndex
```
public V removeByIndex(int index)
```
    移除指定位置的键值对
    
    Parameters:
    
    index - 位置，不能越界
    
    Returns:
    
    移除的值
  - putAll
```
public void putAll(Map<? extends K,? extends V> m)
```
    Specified by:
    
    putAll in interface Map<K,V>
  - clear
```
public void clear()
```
    Specified by:
    
    clear in interface Map<K,V>
  - keySet
```
public Set<K> keySet()
```
    Specified by:
    
    keySet in interface Map<K,V>
  - keys
```
public List<K> keys()
```
    获取所有键，可重复，不可修改
    
    Returns:
    
    键列表
    
    Since:
    
    5.8.0
  - values
```
public Collection<V> values()
```
    Specified by:
    
    values in interface Map<K,V>
  - entrySet
```
public Set<Map.Entry<K,V>> entrySet()
```
    Specified by:
    
    entrySet in interface Map<K,V>
  - iterator
```
public Iterator<Map.Entry<K,V>> iterator()
```
    Specified by:
    
    iterator in interface Iterable<Map.Entry<K,V>>
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - forEach
```
public void forEach(BiConsumer<? super K,? super V> action)
```
    Specified by:
    
    forEach in interface Map<K,V>
  - remove
```
public boolean remove(Object key,
                      Object value)
```
    Specified by:
    
    remove in interface Map<K,V>
  - replaceAll
```
public void replaceAll(BiFunction<? super K,? super V,? extends V> function)
```
    Specified by:
    
    replaceAll in interface Map<K,V>
  - replace
```
public boolean replace(K key,
                       V oldValue,
                       V newValue)
```
    Specified by:
    
    replace in interface Map<K,V>
  - replace
```
public V replace(K key,
                 V value)
```
    替换指定key的所有值为指定值
    
    Specified by:
    
    replace in interface Map<K,V>
    
    Parameters:
    
    key - 指定的key
    
    value - 替换的值
    
    Returns:
    
    最后替换的值
  - computeIfPresent
```
public V computeIfPresent(K key,
                          BiFunction<? super K,? super V,? extends V> remappingFunction)
```
    Specified by:
    
    computeIfPresent in interface Map<K,V>

Class TableMap<K,V>

Nested Class Summary

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

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface java.util.Map

Methods inherited from interface java.lang.Iterable

Constructor Detail

TableMap

TableMap

TableMap

Method Detail

size

isEmpty

containsKey

containsValue

get

getKey

getValues

getKeys

put

remove

removeByIndex

putAll

clear

keySet

keys

values

entrySet

iterator

toString

forEach

remove

replaceAll

replace

replace

computeIfPresent