org.jscience.util
Class CollectionUtils

java.lang.Object
  org.jscience.util.CollectionUtils

public class CollectionUtils
extends java.lang.Object

utility class for calculations on sets

Method Summary

static <T> java.util.List<T>	asList(java.util.Collection<T> col) convenience method to display a collection in a JList for example
static <T> java.util.Set<? extends T>	difference(java.util.Set<? extends T> set1, java.util.Set<? extends T> set2) returns a set that contains all elements from set1 that are not in set2
static <T> void	filter(java.util.Collection<T> col, Filter<T> filter) filters all objects out of the given set that are not accepted by the filter
static <T> java.util.HashSet<T>	makeSet(T[] array) DOCUMENT ME!
static <T> java.util.HashSet<T>	makeSet(T[] array, boolean ignoreDuplicates) DOCUMENT ME!

Methods inherited from class java.lang.Object

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

Method Detail

asList

public static <T> java.util.List<T> asList(java.util.Collection<T> col)

convenience method to display a collection in a JList for example

Type Parameters:

T - DOCUMENT ME!

Parameters:

col - DOCUMENT ME!

Returns:

DOCUMENT ME!

filter

public static <T> void filter(java.util.Collection<T> col,
                              Filter<T> filter)

filters all objects out of the given set that are not accepted by the filter

Type Parameters:

T - DOCUMENT ME!

Parameters:

col - DOCUMENT ME!

filter - DOCUMENT ME!

makeSet

public static <T> java.util.HashSet<T> makeSet(T[] array)
                                    throws java.lang.IllegalArgumentException

DOCUMENT ME!

Type Parameters:

T - DOCUMENT ME!

Parameters:

array - DOCUMENT ME!

Returns:

DOCUMENT ME!

Throws:

java.lang.IllegalArgumentException - if the array contains duplicates

makeSet

public static <T> java.util.HashSet<T> makeSet(T[] array,
                                               boolean ignoreDuplicates)
                                    throws java.lang.IllegalArgumentException

DOCUMENT ME!

Type Parameters:

T - DOCUMENT ME!

Parameters:

array - DOCUMENT ME!

ignoreDuplicates - DOCUMENT ME!

Returns:

DOCUMENT ME!

Throws:

java.lang.IllegalArgumentException - if the array contains duplicates and ignoreduplicates is true

difference

public static <T> java.util.Set<? extends T> difference(java.util.Set<? extends T> set1,
                                                        java.util.Set<? extends T> set2)

returns a set that contains all elements from set1 that are not in set2

Type Parameters:

T - DOCUMENT ME!

Parameters:

set1 - DOCUMENT ME!

set2 - DOCUMENT ME!

Returns:

DOCUMENT ME!