Package org.miaixz.bus.core.center.map

Class TableMap<K,V>

java.lang.Object

org.miaixz.bus.core.center.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

Since:

Java 17+

Author:

Kimi Liu

See Also:

• Serialized Form

Nested Class Summary

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

Map.Entry<K,V>

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	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.lang.Iterable

forEach, spliterator

Methods inherited from interface java.util.Map

compute, computeIfAbsent, equals, getOrDefault, hashCode, merge, putIfAbsent

Constructor Details

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 Details

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

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

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

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

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<K>

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>