/*
 * Copyright 2000-2005 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.  Sun designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Sun in the LICENSE file that accompanied this code.
 *
 * 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 javax.xml.transform.sax;

import javax.xml.transform.*;

import org.xml.sax.ContentHandler;

/**
 * A SAX ContentHandler that may be used to process SAX
 * parse events (parsing transformation instructions) into a Templates object.
 *
 * <p>Note that TemplatesHandler does not need to implement LexicalHandler.</p>
 */
public interface TemplatesHandler extends ContentHandler {

    /**
     * When a TemplatesHandler object is used as a ContentHandler
     * for the parsing of transformation instructions, it creates a Templates object,
     * which the caller can get once the SAX events have been completed.
     *
     * @return The Templates object that was created during
     * the SAX event process, or null if no Templates object has
     * been created.
     *
     */
    public Templates getTemplates();

    /**
     * Set the base ID (URI or system ID) for the Templates object
     * created by this builder.  This must be set in order to
     * resolve relative URIs in the stylesheet.  This must be
     * called before the startDocument event.
     *
     * @param systemID Base URI for this stylesheet.
     */
    public void setSystemId(String systemID);

    /**
     * Get the base ID (URI or system ID) from where relative
     * URLs will be resolved.
     * @return The systemID that was set with {@link #setSystemId}.
     */
    public String getSystemId();
}
