cn.jants.restful.bind.utils

类 CollectionUtils

java.lang.Object

cn.jants.restful.bind.utils.CollectionUtils

public abstract class CollectionUtils
extends java.lang.Object

版本:

1.0

作者:

MrShun

构造器概要

构造器

构造器和说明
CollectionUtils()

方法概要

限定符和类型	方法和说明
static java.util.List	arrayToList(java.lang.Object source)
static boolean	contains(java.util.Enumeration<?> enumeration, java.lang.Object element)
static boolean	contains(java.util.Iterator<?> iterator, java.lang.Object element)
static boolean	containsAny(java.util.Collection<?> source, java.util.Collection<?> candidates)
static boolean	containsInstance(java.util.Collection<?> collection, java.lang.Object element)
static java.lang.Class<?>	findCommonElementType(java.util.Collection<?> collection)
static <E> E	findFirstMatch(java.util.Collection<?> source, java.util.Collection<E> candidates)
static java.lang.Object	findValueOfType(java.util.Collection<?> collection, java.lang.Class<?>[] types)
static <T> T	findValueOfType(java.util.Collection<?> collection, java.lang.Class<T> type)
static boolean	hasUniqueObject(java.util.Collection<?> collection)
static boolean	isEmpty(java.util.Collection<?> collection)
static boolean	isEmpty(java.util.Map<?,?> map)
static <E> void	mergeArrayIntoCollection(java.lang.Object array, java.util.Collection<E> collection)
static <K,V> void	mergePropertiesIntoMap(java.util.Properties props, java.util.Map<java.lang.String,java.lang.Object> map)
static <A,E extends A> A[]	toArray(java.util.Enumeration<E> enumeration, A[] array)
static <E> java.util.Iterator<E>	toIterator(java.util.Enumeration<E> enumeration)
static <K,V> MultiValueMap<K,V>	toMultiValueMap(java.util.Map<K,java.util.List<V>> map)
static <K,V> MultiValueMap<K,V>	unmodifiableMultiValueMap(MultiValueMap<? extends K,? extends V> map)

从类继承的方法 java.lang.Object

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

构造器详细资料

CollectionUtils

public CollectionUtils()

方法详细资料

isEmpty

public static boolean isEmpty(java.util.Collection<?> collection)

isEmpty

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

arrayToList

public static java.util.List arrayToList(java.lang.Object source)

mergeArrayIntoCollection

public static <E> void mergeArrayIntoCollection(java.lang.Object array,
                                                java.util.Collection<E> collection)

mergePropertiesIntoMap

public static <K,V> void mergePropertiesIntoMap(java.util.Properties props,
                                                java.util.Map<java.lang.String,java.lang.Object> map)

contains

public static boolean contains(java.util.Iterator<?> iterator,
                               java.lang.Object element)

contains

public static boolean contains(java.util.Enumeration<?> enumeration,
                               java.lang.Object element)

containsInstance

public static boolean containsInstance(java.util.Collection<?> collection,
                                       java.lang.Object element)

containsAny

public static boolean containsAny(java.util.Collection<?> source,
                                  java.util.Collection<?> candidates)

findFirstMatch

public static <E> E findFirstMatch(java.util.Collection<?> source,
                                   java.util.Collection<E> candidates)

findValueOfType

public static <T> T findValueOfType(java.util.Collection<?> collection,
                                    java.lang.Class<T> type)

findValueOfType

public static java.lang.Object findValueOfType(java.util.Collection<?> collection,
                                               java.lang.Class<?>[] types)

hasUniqueObject

public static boolean hasUniqueObject(java.util.Collection<?> collection)

findCommonElementType

public static java.lang.Class<?> findCommonElementType(java.util.Collection<?> collection)

toArray

public static <A,E extends A> A[] toArray(java.util.Enumeration<E> enumeration,
                                          A[] array)

toIterator

public static <E> java.util.Iterator<E> toIterator(java.util.Enumeration<E> enumeration)

toMultiValueMap

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

unmodifiableMultiValueMap

public static <K,V> MultiValueMap<K,V> unmodifiableMultiValueMap(MultiValueMap<? extends K,? extends V> map)