javaDungAF
Class SetComparison

Object
  SetComparison

public class SetComparison
extends Object

Provides two naive methods for removing non-maximal and non-minimal members of collections-of-collections.

The methods simply use containsAll(Collection<?>) to compare collections, so their effects depend on the types of the members of the collections. The methods would have no effect on, for instance, a collection of sets-of-arrays { {[obj0, obj1]}, {[obj0, obj1], [obj1, obj0]} }, if the two references to '[obj0, obj1]' were not to one and the same object.

Constructor Summary

SetComparison()

Method Summary

static <T extends Collection> boolean	removeNonMaximalMembersOf(Collection<T> collColl) Removes collColl's non-maximal members, simply using containsAll(Collection<?>) to compare the collections.
static <T extends Collection> boolean	removeNonMinimalMembersOf(Collection<T> collColl) Removes collColl's non-minimal members, simply using containsAll(Collection<?>) to compare the collections.
private static <T extends Collection> boolean	removeNonMinimalOrNonMaximalHelper(Collection<T> collColl, boolean removeNonMinimal) Removes collColl's non-minimal/non-maximal members, simply using containsAll(Collection<?>) to compare the collections.

Methods inherited from class Object

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

Constructor Detail

SetComparison

public SetComparison()

Method Detail

removeNonMinimalMembersOf

public static <T extends Collection> boolean removeNonMinimalMembersOf(Collection<T> collColl)

Removes collColl's non-minimal members, simply using containsAll(Collection<?>) to compare the collections.

Parameters:

collColl - a Collection of Collections.

Returns:

true if collColl changed as a result of the call.

removeNonMaximalMembersOf

public static <T extends Collection> boolean removeNonMaximalMembersOf(Collection<T> collColl)

Removes collColl's non-maximal members, simply using containsAll(Collection<?>) to compare the collections.

Parameters:

collColl - a Collection of Collections.

Returns:

true if collColl changed as a result of the call.

removeNonMinimalOrNonMaximalHelper

private static <T extends Collection> boolean removeNonMinimalOrNonMaximalHelper(Collection<T> collColl,
                                                                                 boolean removeNonMinimal)

Removes collColl's non-minimal/non-maximal members, simply using containsAll(Collection<?>) to compare the collections.

Parameters:

collColl - a Collection of Collections.

removeNonMinimal - whether it is the non-minimal or non-maximal members of collColl that are to be removed.

Returns:

true if collColl changed as a result of the call.