selector.java

来自「java css java css java css java css」· Java 代码 · 共 43 行

/*
 * Copyright 2008 Sun Microsystems, Inc.  All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  
 *
 * This code 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 General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */

package com.sun.stylesheet;

import com.sun.stylesheet.styleable.*;

/**
 * Used by {@link CSSRule} to determine whether or not the rule applies to a 
 * given object.
 *
 *@author Ethan Nicholas
 */
public interface Selector {
    /**
     * Determines whether this selector applies to the specified object.  
     * Returns a {@link Match} on success, <code>null</code> otherwise.
     *
     *@return a <code>Match</code> describing the match, or <code>null</code> 
     *      for no match
     */
    public Match matches(Styleable node);
}