Struts example source code file (Set.js)

This example Struts source code file (Set.js) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Struts tags/keywords

array, array, set, set

The Struts Set.js source code

/*
	Copyright (c) 2004-2006, The Dojo Foundation
	All Rights Reserved.

	Licensed under the Academic Free License version 2.1 or above OR the
	modified BSD license. For more information on Dojo licensing, see:

		http://dojotoolkit.org/community/licensing.shtml
*/



dojo.provide("dojo.collections.Set");
dojo.require("dojo.collections.Collections");
dojo.require("dojo.collections.ArrayList");
dojo.collections.Set = new function () {
	this.union = function (setA, setB) {
		if (setA.constructor == Array) {
			var setA = new dojo.collections.ArrayList(setA);
		}
		if (setB.constructor == Array) {
			var setB = new dojo.collections.ArrayList(setB);
		}
		if (!setA.toArray || !setB.toArray) {
			dojo.raise("Set operations can only be performed on array-based collections.");
		}
		var result = new dojo.collections.ArrayList(setA.toArray());
		var e = setB.getIterator();
		while (!e.atEnd()) {
			var item = e.get();
			if (!result.contains(item)) {
				result.add(item);
			}
		}
		return result;
	};
	this.intersection = function (setA, setB) {
		if (setA.constructor == Array) {
			var setA = new dojo.collections.ArrayList(setA);
		}
		if (setB.constructor == Array) {
			var setB = new dojo.collections.ArrayList(setB);
		}
		if (!setA.toArray || !setB.toArray) {
			dojo.raise("Set operations can only be performed on array-based collections.");
		}
		var result = new dojo.collections.ArrayList();
		var e = setB.getIterator();
		while (!e.atEnd()) {
			var item = e.get();
			if (setA.contains(item)) {
				result.add(item);
			}
		}
		return result;
	};
	this.difference = function (setA, setB) {
		if (setA.constructor == Array) {
			var setA = new dojo.collections.ArrayList(setA);
		}
		if (setB.constructor == Array) {
			var setB = new dojo.collections.ArrayList(setB);
		}
		if (!setA.toArray || !setB.toArray) {
			dojo.raise("Set operations can only be performed on array-based collections.");
		}
		var result = new dojo.collections.ArrayList();
		var e = setA.getIterator();
		while (!e.atEnd()) {
			var item = e.get();
			if (!setB.contains(item)) {
				result.add(item);
			}
		}
		return result;
	};
	this.isSubSet = function (setA, setB) {
		if (setA.constructor == Array) {
			var setA = new dojo.collections.ArrayList(setA);
		}
		if (setB.constructor == Array) {
			var setB = new dojo.collections.ArrayList(setB);
		}
		if (!setA.toArray || !setB.toArray) {
			dojo.raise("Set operations can only be performed on array-based collections.");
		}
		var e = setA.getIterator();
		while (!e.atEnd()) {
			if (!setB.contains(e.get())) {
				return false;
			}
		}
		return true;
	};
	this.isSuperSet = function (setA, setB) {
		if (setA.constructor == Array) {
			var setA = new dojo.collections.ArrayList(setA);
		}
		if (setB.constructor == Array) {
			var setB = new dojo.collections.ArrayList(setB);
		}
		if (!setA.toArray || !setB.toArray) {
			dojo.raise("Set operations can only be performed on array-based collections.");
		}
		var e = setB.getIterator();
		while (!e.atEnd()) {
			if (!setA.contains(e.get())) {
				return false;
			}
		}
		return true;
	};
}();