Package org.nd4j.common.io

Class CollectionUtils

java.lang.Object

org.nd4j.common.io.CollectionUtils

public abstract class CollectionUtils
extends Object

Constructor Summary

Constructors

Constructor	Description
CollectionUtils()

Method Summary

Modifier and Type	Method	Description
static List	arrayToList(Object source)
static boolean	contains(Enumeration enumeration, Object element)
static boolean	contains(Iterator iterator, Object element)
static boolean	containsAny(Collection source, Collection candidates)
static boolean	containsInstance(Collection collection, Object element)
static Class<?>	findCommonElementType(Collection collection)
static Object	findFirstMatch(Collection source, Collection candidates)
static Object	findValueOfType(Collection<?> collection, Class<?>[] types)
static <T> T	findValueOfType(Collection<?> collection, Class<T> type)
static boolean	hasUniqueObject(Collection collection)
static boolean	isEmpty(Collection collection)
static boolean	isEmpty(Map map)
static void	mergeArrayIntoCollection(Object array, Collection collection)
static void	mergePropertiesIntoMap(Properties props, Map map)
static <A,E extends A> A[]	toArray(Enumeration<E> enumeration, A[] array)
static <E> Iterator<E>	toIterator(Enumeration<E> enumeration)
static <K,V> MultiValueMap<K,V>	toMultiValueMap(Map<K,List<V>> map)
static <K,V> MultiValueMap<K,V>	unmodifiableMultiValueMap(MultiValueMap<? extends K,? extends V> map)

Methods inherited from class java.lang.Object

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

Constructor Detail

CollectionUtils

public CollectionUtils()

Method Detail

isEmpty

public static boolean isEmpty(Collection collection)

isEmpty

public static boolean isEmpty(Map map)

arrayToList

public static List arrayToList(Object source)

mergeArrayIntoCollection

public static void mergeArrayIntoCollection(Object array,
                                            Collection collection)

mergePropertiesIntoMap

public static void mergePropertiesIntoMap(Properties props,
                                          Map map)

contains

public static boolean contains(Iterator iterator,
                               Object element)

contains

public static boolean contains(Enumeration enumeration,
                               Object element)

containsInstance

public static boolean containsInstance(Collection collection,
                                       Object element)

containsAny

public static boolean containsAny(Collection source,
                                  Collection candidates)

findFirstMatch

public static Object findFirstMatch(Collection source,
                                    Collection candidates)

findValueOfType

public static <T> T findValueOfType(Collection<?> collection,
                                    Class<T> type)

findValueOfType

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

hasUniqueObject

public static boolean hasUniqueObject(Collection collection)

findCommonElementType

public static Class<?> findCommonElementType(Collection collection)

toArray

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

toIterator

public static <E> Iterator<E> toIterator(Enumeration<E> enumeration)

toMultiValueMap

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

unmodifiableMultiValueMap

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