org.dromara.stream.core.collection

类 Maps

java.lang.Object

org.dromara.stream.core.collection.Maps

public class Maps
extends Object

Maps class.

作者:

VampireAchao

从以下版本开始:

2022/10/21 16:35

方法概要

限定符和类型	方法和说明
static <K,V> Map<K,V>	empty() 获取一个空的Map
static <K,V> Map.Entry<K,V>	entry(K key, V value) entry.
static <K,V> Map<K,V>	of(int initialCapacity) of.
static <K,V> Map<K,V>	of(K k, V v) of.
static <K,V> Map<K,V>	of(K k, V v, K k1, V v1) of.
static <K,V> Map<K,V>	of(K k, V v, K k1, V v1, K k2, V v2) of.
static <K,A,V> Steam<Map.Entry<K,List<V>>>	oneToManyToOne(Map<K,List<A>> middleMap, Map<A,V> attachMap, UnaryOperator<Steam<V>>... unaryOperator) oneToManyToOne.
static <K,A,V> Steam<Map.Entry<K,List<V>>>	oneToOneToMany(Map<K,A> middleMap, Map<A,List<V>> attachMap, UnaryOperator<Steam<V>>... unaryOperator) oneToOneToMany.
static <K,A,V> Steam<Map.Entry<K,V>>	oneToOneToOne(Map<K,A> middleMap, Map<A,V> attachMap, UnaryOperator<V>... unaryOperator) oneToOneToOne.

从类继承的方法 java.lang.Object

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

方法详细资料

of

public static <K,V> Map<K,V> of(int initialCapacity)

of.

类型参数:

K - a K class

V - a V class

参数:

initialCapacity - a int

返回:

a Map object

of

public static <K,V> Map<K,V> of(K k,
                                V v)

of.

类型参数:

K - a K class

V - a V class

参数:

k - a K object

v - a V object

返回:

a Map object

of

public static <K,V> Map<K,V> of(K k,
                                V v,
                                K k1,
                                V v1)

of.

类型参数:

K - a K class

V - a V class

参数:

k - a K object

v - a V object

k1 - a K object

v1 - a V object

返回:

a Map object

of

public static <K,V> Map<K,V> of(K k,
                                V v,
                                K k1,
                                V v1,
                                K k2,
                                V v2)

of.

类型参数:

K - a K class

V - a V class

参数:

k - a K object

v - a V object

k1 - a K object

v1 - a V object

k2 - a K object

v2 - a V object

返回:

a Map object

entry

public static <K,V> Map.Entry<K,V> entry(K key,
                                         V value)

entry.

类型参数:

K - a K class

V - a V class

参数:

key - a K object

value - a V object

返回:

a Map.Entry object

oneToManyToOne

@SafeVarargs
public static <K,A,V> Steam<Map.Entry<K,List<V>>> oneToManyToOne(Map<K,List<A>> middleMap,
                                                                               Map<A,V> attachMap,
                                                                               UnaryOperator<Steam<V>>... unaryOperator)

oneToManyToOne.

类型参数:

K - a K class

A - a A class

V - a V class

参数:

middleMap - a Map object

attachMap - a Map object

unaryOperator - a UnaryOperator object

返回:

a Steam object

oneToOneToOne

@SafeVarargs
public static <K,A,V> Steam<Map.Entry<K,V>> oneToOneToOne(Map<K,A> middleMap,
                                                                        Map<A,V> attachMap,
                                                                        UnaryOperator<V>... unaryOperator)

oneToOneToOne.

类型参数:

K - a K class

A - a A class

V - a V class

参数:

middleMap - a Map object

attachMap - a Map object

unaryOperator - a UnaryOperator object

返回:

a Steam object

oneToOneToMany

@SafeVarargs
public static <K,A,V> Steam<Map.Entry<K,List<V>>> oneToOneToMany(Map<K,A> middleMap,
                                                                               Map<A,List<V>> attachMap,
                                                                               UnaryOperator<Steam<V>>... unaryOperator)

oneToOneToMany.

类型参数:

K - a K class

A - a A class

V - a V class

参数:

middleMap - a Map object

attachMap - a Map object

unaryOperator - a UnaryOperator object

返回:

a Steam object

empty

public static <K,V> Map<K,V> empty()

获取一个空的Map

类型参数:

K - key

V - value

返回:

空的Map