Package org.eclipse.epsilon.common.util

Class CollectionUtil

java.lang.Object

org.eclipse.epsilon.common.util.CollectionUtil

public class CollectionUtil
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	CollectionUtil.ElementPrinter

Method Summary

Modifier and Type	Method	Description
static void	addCapacityIfArrayList(Collection<?> collection, int additionalCapacity)
static <T> Collection<T>	asCollection(T o)
static Iterator<?>	asIterator(Object o)
static <T> List<T>	asList(Collection<T> c)
static <T> List<T>	asList(T o)
static <T> Set<T>	asSet(T o)
static <T> ArrayList<T>	composeArrayListFrom(Collection<T>... collections)
static <T> List<T>	createDefaultList()
static <T> Set<T>	createDefaultSet()
static boolean	equalsIgnoreOrder(Collection<?> c1, Collection<?> c2)
static <T> Collection<T>	flatten(Collection<T> original)
static <T> Object	getFirst(Iterable<T> c)
static <T> List<T>	iterate(Iterable<T> iterable)
static String	join(Iterable<?> collection, String delimiter)
static String	join(Iterable<?> collection, String delimiter, CollectionUtil.ElementPrinter printer)
static <T, C extends Collection<T>> C	mergeCollectionsUnique(Collection<T> c1, Collection<T> c2, Supplier<? extends C> newCollection)
static <E> E[]	toArray(Collection<E> c, Class<?> arrayType)

Methods inherited from class java.lang.Object

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

Method Details

asIterator

public static Iterator<?> asIterator(Object o)

Parameters:

o -

Returns:

Since:

1.6

equalsIgnoreOrder

public static boolean equalsIgnoreOrder(Collection<?> c1,
 Collection<?> c2)

Parameters:

c1 -

c2 -

Returns:

Since:

1.6

composeArrayListFrom

@SafeVarargs
public static <T> ArrayList<T> composeArrayListFrom(Collection<T>... collections)

Parameters:

collections -

Returns:

Since:

1.6

mergeCollectionsUnique

public static <T,
C extends Collection<T>> C mergeCollectionsUnique(Collection<T> c1,
 Collection<T> c2,
 Supplier<? extends C> newCollection)

Parameters:

c1 -

c2 -

newCollection -

Returns:

Since:

1.6

addCapacityIfArrayList

public static void addCapacityIfArrayList(Collection<?> collection,
 int additionalCapacity)

Parameters:

collection -

additionalCapacity -

Since:

1.6

asCollection

public static <T> Collection<T> asCollection(T o)

asList

public static <T> List<T> asList(T o)

asSet

public static <T> Set<T> asSet(T o)

flatten

public static <T> Collection<T> flatten(Collection<T> original)

createDefaultSet

public static <T> Set<T> createDefaultSet()

createDefaultList

public static <T> List<T> createDefaultList()

asList

public static <T> List<T> asList(Collection<T> c)

getFirst

public static <T> Object getFirst(Iterable<T> c)

iterate

public static <T> List<T> iterate(Iterable<T> iterable)

toArray

public static <E> E[] toArray(Collection<E> c,
 Class<?> arrayType)

join

public static String join(Iterable<?> collection,
 String delimiter)

join

public static String join(Iterable<?> collection,
 String delimiter,
 CollectionUtil.ElementPrinter printer)