// HTMLParser Library $Name: v1_6_20060319 $ - A java-based parser for HTML// http://sourceforge.org/projects/htmlparser// Copyright (C) 2003 Derrick Oswald//// Revision Control Information//// $Source: /cvsroot/htmlparser/htmlparser/src/org/htmlparser/filters/AndFilter.java,v $// $Author: derrickoswald $// $Date: 2005/06/14 10:37:33 $// $Revision: 1.4 $//// 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, write to the Free Software// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA//package org.htmlparser.filters;import org.htmlparser.Node;import org.htmlparser.NodeFilter;/** * Accepts nodes matching all of it's predicate filters (AND operation). */public class AndFilter    implements        NodeFilter{    /**     * The predicates that are to be and'ed together;     */    protected NodeFilter[] mPredicates;    /**     * Creates a new instance of an AndFilter.     * With no predicates, this would always answer <code>true</code>     * to {@link #accept}.     * @see #setPredicates     */    public AndFilter ()    {        setPredicates (null);    }    /**     * Creates an AndFilter that accepts nodes acceptable to both filters.     * @param left One filter.     * @param right The other filter.     */    public AndFilter (NodeFilter left, NodeFilter right)    {        NodeFilter[] predicates;        predicates = new NodeFilter[2];        predicates[0] = left;        predicates[1] = right;        setPredicates (predicates);    }    /**     * Get the predicates used by this AndFilter.     * @return The predicates currently in use.     */    public NodeFilter[] getPredicates ()    {        return (mPredicates);    }    /**     * Set the predicates for this AndFilter.     * @param predicates The list of predidcates to use in {@link #accept}.     */    public void setPredicates (NodeFilter[] predicates)    {        if (null == predicates)            predicates = new NodeFilter[0];        mPredicates = predicates;    }    //    // NodeFilter interface    //    /**     * Accept nodes that are acceptable to all of it's predicate filters.     * @param node The node to check.     * @return <code>true</code> if all the predicate filters find the node     * is acceptable, <code>false</code> otherwise.     */    public boolean accept (Node node)    {        boolean ret;        ret = true;        for (int i = 0; ret && (i < mPredicates.length); i++)            if (!mPredicates[i].accept (node))                ret = false;        return (ret);    }}