cn.hutool.core.map

Class FuncMap<K,V>

java.lang.Object

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

cn.hutool.core.map.TransMap<K,V>

cn.hutool.core.map.FuncMap<K,V>

Type Parameters:

K - 键类型

V - 值类型

All Implemented Interfaces:

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

public class FuncMap<K,V>
extends TransMap<K,V>

自定义键值函数风格的Map

Since:

5.8.0

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.MapWrapper

DEFAULT_INITIAL_CAPACITY, DEFAULT_LOAD_FACTOR

Constructor Summary

Constructors

Constructor and Description
FuncMap(Map<K,V> emptyMap, Function<Object,K> keyFunc, Function<Object,V> valueFunc) 构造 注意提供的Map中不能有键值对，否则可能导致自定义key失效
FuncMap(Supplier<Map<K,V>> mapFactory, Function<Object,K> keyFunc, Function<Object,V> valueFunc) 构造 注意提供的Map中不能有键值对，否则可能导致自定义key失效

Method Summary

Modifier and Type	Method and Description
protected K	customKey(Object key) 根据函数自定义键
protected V	customValue(Object value) 自定义值

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

compute, computeIfAbsent, computeIfPresent, containsKey, get, getOrDefault, merge, put, putAll, putIfAbsent, remove, remove, replace, replace

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

clear, clone, containsValue, entrySet, equals, forEach, getRaw, hashCode, isEmpty, iterator, keySet, 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

FuncMap

public FuncMap(Supplier<Map<K,V>> mapFactory,
               Function<Object,K> keyFunc,
               Function<Object,V> valueFunc)

构造
注意提供的Map中不能有键值对，否则可能导致自定义key失效

Parameters:

mapFactory - Map，提供的空map

keyFunc - 自定义KEY的函数

valueFunc - 自定义value函数

FuncMap

public FuncMap(Map<K,V> emptyMap,
               Function<Object,K> keyFunc,
               Function<Object,V> valueFunc)

构造
注意提供的Map中不能有键值对，否则可能导致自定义key失效

Parameters:

emptyMap - Map，提供的空map

keyFunc - 自定义KEY的函数

valueFunc - 自定义value函数

Method Detail

customKey

protected K customKey(Object key)

根据函数自定义键

Specified by:

customKey in class TransMap<K,V>

Parameters:

key - KEY

Returns:

驼峰Key

customValue

protected V customValue(Object value)

Description copied from class: TransMap

自定义值

Specified by:

customValue in class TransMap<K,V>

Parameters:

value - 值

Returns:

自定义值