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/*
Wotonomy: OpenStep design patterns for pure Java applications.
Copyright (C) 2000 Blacksmith, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see http://www.gnu.org
*/
package net.wotonomy.foundation;
import java.util.Collection;
import java.util.Enumeration;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
import java.util.Vector;
/**
* A pure java implementation of NSSet that implements Set for greater java
* interoperability.
*
* @author michael@mpowers.net
* @author $Author: cgruber $
* @version $Revision: 893 $
*/
public class NSSet<T> extends HashSet<T> {
private static final long serialVersionUID = 4211571026717957124L;
/**
* Default constructor.
*/
public NSSet() {
super();
}
/**
* Constructs a NSSet containing the objects in the specified collection.
*/
public NSSet(Collection<T> aCollection) {
super(aCollection);
}
/**
* Constructs a NSSet containing only the specified object.
*/
public NSSet(T anObject) {
super();
add(anObject);
}
/**
* Constructs a NSSet containing the objects in the specified array.
*/
public NSSet(T[] anObjectArray) {
super();
for (int i = 0; i < anObjectArray.length; i++) {
add(anObjectArray[i]);
}
}
/**
* Returns an NSArray containing all objects in the set.
*/
public NSArray<T> allObjects() {
return new NSArray<>(this);
}
/**
* Retrieve an arbitrary object from the set.
*
* @return An arbitrary object from the set
*/
public T anyObject() {
throw new RuntimeException("Not implemented yet.");
}
/**
* Returns whether this set contains the specified object.
*/
public boolean containsObject(Object anObject) {
return contains(anObject);
}
/**
* Returns the number of elements in this set.
*/
public int count() {
return size();
}
/**
* Returns whether this set has one or more elements in common with the
* specified set.
*/
public boolean intersectsSet(Set<T> aSet) {
Iterator<T> it = aSet.iterator();
while (it.hasNext()) {
if (this.containsObject(it.next())) {
return true;
}
}
return false;
}
/**
* Returns whether this set contains the same object as the specified set.
*/
public boolean isEqualToSet(Set<T> aSet) {
return equals(aSet);
}
/**
* Returns whether this set is a subset of the specified set.
*/
public boolean isSubsetOfSet(Set<T> aSet) {
return aSet.containsAll(this);
}
/**
*
*/
public Object member(Object anObject) {
throw new RuntimeException("Not implemented yet.");
}
/**
* Returns an enumerator over the objects in this set.
*/
public Enumeration<T> objectEnumerator() {
return new Vector<>(this).elements();
}
/**
* Returns a set that is the intersection of this set and the specified set.
*/
public NSSet<T> setByIntersectingSet(Set<T> aSet) {
NSSet<T> result = new NSSet<>(this);
result.retainAll(aSet);
return result;
}
/**
* Returns a set that contains all elements in this set that are not in the
* specified set.
*/
public NSSet<T> setBySubtractingSet(Set<T> aSet) {
NSSet<T> result = new NSSet<>(this);
result.removeAll(aSet);
return result;
}
/**
* Returns a set that is the union of this set and the specified set.
*/
public NSSet<T> setByUnioningSet(Set<T> aSet) {
NSSet<T> result = new NSSet<>(this);
result.addAll(aSet);
return result;
}
}
/*
* $Log$ Revision 1.2 2006/02/16 13:15:00 cgruber Check in all sources in
* eclipse-friendly maven-enabled packages.
*
* Revision 1.1.1.1 2000/12/21 15:47:45 mpowers Contributing wotonomy.
*
* Revision 1.3 2000/12/20 16:25:39 michael Added log to all files.
*
*
*/
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