org.jocl.cloth.utils
Class CollectionUtils

java.lang.Object
  org.jocl.cloth.utils.CollectionUtils

public class CollectionUtils
extends java.lang.Object

Utility methods for collections.

Method Summary

static <T> java.util.List<java.util.List<T>>	asListList(java.lang.Iterable<? extends java.util.Collection<? extends T>> collections) Returns the given collections as a list of lists
static <T> java.util.List<java.util.List<java.util.List<T>>>	asListListList(java.lang.Iterable<? extends java.lang.Iterable<? extends java.util.Collection<? extends T>>> collections) Returns the given collections as a list of lists of lists
static <T> java.util.List<java.util.Set<T>>	asSetList(java.lang.Iterable<? extends java.util.Collection<? extends T>> collections) Returns the given collections as a list of sets
static <T extends java.util.Collection<?>> java.util.Comparator<T>	collectionBySizeComparator() Returns a comparator that compares collections by their size, in ascending order
static <T> int	computeTotalSize(java.lang.Iterable<? extends java.util.Collection<? extends T>> collections) Returns the total size of the given collections
static <T> boolean	containsAny(java.util.Collection<? extends T> containing, java.lang.Iterable<? extends T> anyOfThese) Returns whether the first collection contains any of the elements of the second sequence of elements
static <T> java.util.List<T>	flatten(java.lang.Iterable<? extends java.util.Collection<? extends T>> collections) Flatten the contents of the given sequence of collections.
static <T extends java.util.Collection<?>> T	largest(java.lang.Iterable<T> collections) Returns the largest of the given collections
static <T extends java.util.Collection<?>> int	maxSize(java.lang.Iterable<T> collections) Returns the size of the largest collection
static <T extends java.util.Collection<?>> int	minSize(java.lang.Iterable<T> collections) Returns the size of the smallest collection
static <T extends java.util.Collection<?>> T	smallest(java.lang.Iterable<T> collections) Returns the smallest of the given collections

Methods inherited from class java.lang.Object

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

Method Detail

collectionBySizeComparator

public static <T extends java.util.Collection<?>> java.util.Comparator<T> collectionBySizeComparator()

Returns a comparator that compares collections by their size, in ascending order

Type Parameters:

T - The type of the collection

Returns:

The comparator

largest

public static <T extends java.util.Collection<?>> T largest(java.lang.Iterable<T> collections)

Returns the largest of the given collections

Type Parameters:

T - The type of the collections

Parameters:

collections - The collections

Returns:

The largest collection

smallest

public static <T extends java.util.Collection<?>> T smallest(java.lang.Iterable<T> collections)

Returns the smallest of the given collections

Type Parameters:

T - The type of the collections

Parameters:

collections - The collections

Returns:

The smallest collection

maxSize

public static <T extends java.util.Collection<?>> int maxSize(java.lang.Iterable<T> collections)

Returns the size of the largest collection

Type Parameters:

T - The type of the collections

Parameters:

collections - The collections

Returns:

The size of the largest collection

minSize

public static <T extends java.util.Collection<?>> int minSize(java.lang.Iterable<T> collections)

Returns the size of the smallest collection

Type Parameters:

T - The type of the collections

Parameters:

collections - The collections

Returns:

The size of the smallest collection

flatten

public static <T> java.util.List<T> flatten(java.lang.Iterable<? extends java.util.Collection<? extends T>> collections)

Flatten the contents of the given sequence of collections. That is, return the contents of all collections as a single list.

Type Parameters:

T - The content type

Parameters:

collections - The collections

Returns:

The flattened collection

asListList

public static <T> java.util.List<java.util.List<T>> asListList(java.lang.Iterable<? extends java.util.Collection<? extends T>> collections)

Returns the given collections as a list of lists

Type Parameters:

T - The content type of the lists

Parameters:

collections - The collections

Returns:

The collections as a list of lists

asListListList

public static <T> java.util.List<java.util.List<java.util.List<T>>> asListListList(java.lang.Iterable<? extends java.lang.Iterable<? extends java.util.Collection<? extends T>>> collections)

Returns the given collections as a list of lists of lists

Type Parameters:

T - The content type of the lists

Parameters:

collections - The collections

Returns:

The collections as a list of lists of lists

asSetList

public static <T> java.util.List<java.util.Set<T>> asSetList(java.lang.Iterable<? extends java.util.Collection<? extends T>> collections)

Returns the given collections as a list of sets

Type Parameters:

T - The content type of the sets

Parameters:

collections - The collections

Returns:

The collections as a list of sets

containsAny

public static <T> boolean containsAny(java.util.Collection<? extends T> containing,
                                      java.lang.Iterable<? extends T> anyOfThese)

Returns whether the first collection contains any of the elements of the second sequence of elements

Type Parameters:

T - The content type

Parameters:

containing - The collection potentially containing the elements

anyOfThese - The elements that may be contained in the collection

Returns:

Whether any of the elements is contained in the collection

computeTotalSize

public static <T> int computeTotalSize(java.lang.Iterable<? extends java.util.Collection<? extends T>> collections)

Returns the total size of the given collections

Type Parameters:

T - The content type of the collections

Parameters:

collections - The collections

Returns:

The total size