Package org.xyou.xcommon.map

Class XMap

java.lang.Object

org.xyou.xcommon.map.XMap

public final class XMap
extends java.lang.Object

Constructor Summary

Constructors

Constructor	Description
XMap()

Method Summary

Modifier and Type	Method	Description
static <K,V> java.util.Map<K,V>	filterByLsKey(java.util.Map<K,V> map, java.util.Collection<K> collKey)
static <K,V> java.util.List<K>	getLsKeySortedByValue(java.util.Map<K,V> map)
static <K,V> java.util.List<V>	getLsValueByLsKey(java.util.Map<K,V> map, java.util.Collection<K> coll)
static <K,V> boolean	isEmpty(java.util.Map<K,V> map)
static <K,V,T> java.util.Map<K,T>	map(java.util.Map<K,V> map, java.util.function.Function<V,T> func)
static <K,V extends java.lang.Number> java.util.Map<K,java.lang.Double>	normLog(java.util.Map<K,V> map)
static <K,V extends java.lang.Number> java.util.Map<K,java.lang.Double>	normMax(java.util.Map<K,V> map)
static <K,V> java.util.Map<K,V>	of(K k1, V v1)
static <K,V> java.util.Map<K,V>	of(K k1, V v1, K k2, V v2)
static <K,V> java.util.Map<K,V>	of(K k1, V v1, K k2, V v2, K k3, V v3)
static <K,V> java.util.Map<K,V>	of(K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4)
static <K,V> java.util.Map<K,V>	of(K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5)
static <K,V> java.util.Map<K,V>	reduce(java.util.List<java.util.Map<K,V>> lsMap, V def, java.util.function.BiFunction<V,V,V> func)
static <K,V> java.util.Map<V,K>	reverse(java.util.Map<K,V> map)

Methods inherited from class java.lang.Object

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

Constructor Detail

XMap

public XMap()

Method Detail

of

public static <K,V> java.util.Map<K,V> of(K k1,
                                                      V v1)

of

public static <K,V> java.util.Map<K,V> of(K k1,
                                                      V v1,
                                                      K k2,
                                                      V v2)

of

public static <K,V> java.util.Map<K,V> of(K k1,
                                                      V v1,
                                                      K k2,
                                                      V v2,
                                                      K k3,
                                                      V v3)

of

public static <K,V> java.util.Map<K,V> of(K k1,
                                                      V v1,
                                                      K k2,
                                                      V v2,
                                                      K k3,
                                                      V v3,
                                                      K k4,
                                                      V v4)

of

public static <K,V> java.util.Map<K,V> of(K k1,
                                                      V v1,
                                                      K k2,
                                                      V v2,
                                                      K k3,
                                                      V v3,
                                                      K k4,
                                                      V v4,
                                                      K k5,
                                                      V v5)

isEmpty

public static <K,V> boolean isEmpty(java.util.Map<K,V> map)

reverse

public static <K,V> java.util.Map<V,K> reverse(java.util.Map<K,V> map)

getLsKeySortedByValue

public static <K,V> java.util.List<K> getLsKeySortedByValue(java.util.Map<K,V> map)

getLsValueByLsKey

public static <K,V> java.util.List<V> getLsValueByLsKey(java.util.Map<K,V> map,
                                                              java.util.Collection<K> coll)

filterByLsKey

public static <K,V> java.util.Map<K,V> filterByLsKey(java.util.Map<K,V> map,
                                                                 java.util.Collection<K> collKey)

map

public static <K,V,T> java.util.Map<K,T> map(java.util.Map<K,V> map,
                                                               java.util.function.Function<V,T> func)

reduce

public static <K,V> java.util.Map<K,V> reduce(java.util.List<java.util.Map<K,V>> lsMap,
                                                          V def,
                                                          java.util.function.BiFunction<V,V,V> func)

normLog

public static <K,V extends java.lang.Number> java.util.Map<K,java.lang.Double> normLog(java.util.Map<K,V> map)

normMax

public static <K,V extends java.lang.Number> java.util.Map<K,java.lang.Double> normMax(java.util.Map<K,V> map)