Class ContainUtils

java.lang.Object

com.flyfish.oauth.utils.ContainUtils

public class ContainUtils
extends Object

Author:

wangyu

Constructor Summary

Constructors

Constructor	Description
ContainUtils()

Method Summary

Modifier and Type	Method	Description
static <T> List<Object>	getIdentifiers(List<T> list, Function<T,Object> function)	通过function转换标识
static <E,V> Map<E,V>	listsToMap(Collection<E> keys, Collection<V> values)	将key和value组成的list转化为map（zipObject） 转换时不保证有序 !!
static <E,V> List<V>	listWithKeys(Map<E,V> map, Collection<E> keys)	排除相同的keys的集合
static <E,V> List<V>	listWithoutKeys(Map<E,V> map, Collection<E> keys)	排除不同的keys剩下的值
static <E,V> Map<E,V>	mapWithKeys(Map<E,V> map, Collection<E> keys)	排除相同的keys的集合
static <E,V> Map<E,V>	mapWithoutKeys(Map<E,V> map, Collection<E> keys)	排除不同的keys剩下的值
static <E,V> Map<E,V>	putAllWithKeys(Map<E,V> map, Collection<E> keys, Map<E,V> source)	通过源Map将所有key对应的值写入目标Map内
static <E,V> Map<E,V>	removeByKeys(Map<E,V> map, Collection<E> keys)	通过指定的key批量删除值

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ContainUtils

public ContainUtils()

Method Details

putAllWithKeys

public static <E,V> Map<E,V> putAllWithKeys(Map<E,V> map,
 Collection<E> keys,
 Map<E,V> source)

通过源Map将所有key对应的值写入目标Map内

Type Parameters:

E -

V -

Parameters:

map -

keys -

source -

Returns:

目标Map

getIdentifiers

public static <T> List<Object> getIdentifiers(List<T> list,
 Function<T,Object> function)

通过function转换标识

Type Parameters:

T - 泛型

Parameters:

list - 列表

function - 方法

Returns:

结果

listWithoutKeys

public static <E,V> List<V> listWithoutKeys(Map<E,V> map,
 Collection<E> keys)

排除不同的keys剩下的值

Type Parameters:

E -

V -

Parameters:

map -

keys -

Returns:

listWithKeys

public static <E,V> List<V> listWithKeys(Map<E,V> map,
 Collection<E> keys)

排除相同的keys的集合

Type Parameters:

E -

V -

Parameters:

map -

keys -

Returns:

mapWithoutKeys

public static <E,V> Map<E,V> mapWithoutKeys(Map<E,V> map,
 Collection<E> keys)

排除不同的keys剩下的值

Type Parameters:

E -

V -

Parameters:

map -

keys -

Returns:

mapWithKeys

public static <E,V> Map<E,V> mapWithKeys(Map<E,V> map,
 Collection<E> keys)

排除相同的keys的集合

Type Parameters:

E -

V -

Parameters:

map -

keys -

Returns:

removeByKeys

public static <E,V> Map<E,V> removeByKeys(Map<E,V> map,
 Collection<E> keys)

通过指定的key批量删除值

Type Parameters:

E -

V -

Parameters:

map -

keys -

Returns:

listsToMap

public static <E,V> Map<E,V> listsToMap(Collection<E> keys,
 Collection<V> values)

将key和value组成的list转化为map（zipObject） 转换时不保证有序 !!但是如果传入的是list，则必然有序!!

Type Parameters:

E -

V -

Parameters:

keys -

values -

Returns: