uk.ac.ed.inf.utils
Class CollectionUtils

java.lang.Object
  uk.ac.ed.inf.utils.CollectionUtils

public class CollectionUtils
extends java.lang.Object

Class

Version:

1 Jul 2008

Author:

Luna De Ferrari luna.deferrari-at-ed.ac.uk

Constructor Summary

CollectionUtils()

Method Summary

static int	countValues(java.util.Collection collection, java.lang.Object value) Counts the occurrences of a given value in a collection (using the 'equals' method)
static java.util.Vector<java.lang.String>	fromArrayListToVector(java.util.ArrayList<java.lang.String> list)
static java.util.Vector<java.lang.String>	fromBigSetToVector(java.util.Set<java.lang.String> set) Deletes each set entry after writing it to vector, to limit memory use.
static java.util.Vector<java.lang.String>	fromSetToVector(java.util.Set<java.lang.String> set)

Methods inherited from class java.lang.Object

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

Constructor Detail

CollectionUtils

public CollectionUtils()

Method Detail

countValues

public static int countValues(java.util.Collection collection,
                              java.lang.Object value)

Counts the occurrences of a given value in a collection (using the 'equals' method)

Parameters:

collection - a collection

value - an object

Returns:

the count of the object occurrences in the collection

fromArrayListToVector

public static java.util.Vector<java.lang.String> fromArrayListToVector(java.util.ArrayList<java.lang.String> list)

fromBigSetToVector

public static java.util.Vector<java.lang.String> fromBigSetToVector(java.util.Set<java.lang.String> set)

Deletes each set entry after writing it to vector, to limit memory use.

Parameters:

a - big set

Returns:

a vector of the set elements

fromSetToVector

public static java.util.Vector<java.lang.String> fromSetToVector(java.util.Set<java.lang.String> set)