/*
 * Copyright 2000-2006 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.Result;
import javax.xml.transform.Transformer;

import org.xml.sax.ContentHandler;
import org.xml.sax.DTDHandler;
import org.xml.sax.ext.LexicalHandler;

/**
 * A TransformerHandler
 * listens for SAX ContentHandler parse events and transforms
 * them to a Result.
 */
public interface TransformerHandler
    extends ContentHandler, LexicalHandler, DTDHandler {

    /**
     * <p>Set  the <code>Result</code> associated with this
     * <code>TransformerHandler</code> to be used for the transformation.</p>
     *
     * @param result A <code>Result</code> instance, should not be
     *   <code>null</code>.
     *
     * @throws IllegalArgumentException if result is invalid for some reason.
     */
    public void setResult(Result result) throws IllegalArgumentException;

    /**
     * Set the base ID (URI or system ID) from where relative
     * URLs will be resolved.
     * @param systemID Base URI for the source tree.
     */
    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();

    /**
     * <p>Get the <code>Transformer</code> associated with this handler, which
     * is needed in order to set parameters and output properties.</p>
     *
     * @return <code>Transformer</code> associated with this
     *   <code>TransformerHandler</code>.
     */
    public Transformer getTransformer();
}
