de.rwth.i2.attestor.util

Class ListUtil

java.lang.Object

de.rwth.i2.attestor.util.ListUtil

public class ListUtil
extends Object

Compares lists that are interpreted as multi-sets.

Author:

Christoph

Constructor Summary

Constructors

Constructor and Description
ListUtil()

Method Summary

Modifier and Type	Method and Description
static boolean	isEqualAsMultiset(List<?> left, List<?> right) Checks whether two given lists that are interpreted as multi-sets contain the same elements.
static boolean	isSubsetAsMultiset(List<?> left, List<?> right) Checks whether all elements of a list are contained in another list if both lists are interpreted as multi-sets.

Methods inherited from class java.lang.Object

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

Constructor Detail

ListUtil

public ListUtil()

Method Detail

isEqualAsMultiset

public static boolean isEqualAsMultiset(List<?> left,
                                        List<?> right)

Checks whether two given lists that are interpreted as multi-sets contain the same elements. The provided lists may be altered during this check.

Parameters:

left - A list.

right - Another list.

Returns:

True if and only if both lists contain equal elements including repetitions.

isSubsetAsMultiset

public static boolean isSubsetAsMultiset(List<?> left,
                                         List<?> right)

Checks whether all elements of a list are contained in another list if both lists are interpreted as multi-sets. The provided lists may be altered during this check. That is, all repetitions of the left list have also to be repetitions in the right list.

Parameters:

left - A list.

right - Another list.

Returns:

True if and only if all elements of left, including repetitions, are equal to an element of right.