Page.java |
/* * Copyright 2002 Sun Microsystems, Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * - Redistribution in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * Neither the name of Sun Microsystems, Inc. or the names of * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * This software is provided "AS IS," without a warranty of any * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY * EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES * SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR * DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN * OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR * FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR * PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF * LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE SOFTWARE, * EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. * * You acknowledge that Software is not designed, licensed or intended * for use in the design, construction, operation or maintenance of * any nuclear facility. */ package com.sun.j2ee.blueprints.catalog.model; import java.util.*; import java.io.Serializable; /** * Represents a page of results (for page-by-page iteration). */ public class Page implements Serializable { // XXX /* public static final Page EMPTY_PAGE = new Page(Collections.EMPTY_LIST, 0, 0); */ public static final Page EMPTY_PAGE = new Page(Collections.EMPTY_LIST, 0, false); List objects; int start; // XXX // int containingListSize; boolean hasNext; // XXX /* public Page(List l, int s, int cls) { */ public Page(List l, int s, boolean hasNext) { objects = new ArrayList(l); start = s; // XXX //containingListSize = cls; this.hasNext = hasNext; } public List getList() { return objects; } public boolean isNextPageAvailable() { // XXX /* return (start + objects.size()) < containingListSize; */ return hasNext; } public boolean isPreviousPageAvailable() { return start > 0; } public int getStartOfNextPage() { return start + objects.size(); } public int getStartOfPreviousPage() { return Math.max(start-objects.size(), 0); } public int getSize() { return objects.size(); } }
Page.java |