001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one
003     * or more contributor license agreements. See the NOTICE file
004     * distributed with this work for additional information
005     * regarding copyright ownership. The ASF licenses this file
006     * to you under the Apache License, Version 2.0 (the  "License");
007     * you may not use this file except in compliance with the License.
008     * You may obtain a copy of the License at
009     *
010     *     http://www.apache.org/licenses/LICENSE-2.0
011     *
012     * Unless required by applicable law or agreed to in writing, software
013     * distributed under the License is distributed on an "AS IS" BASIS,
014     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015     * See the License for the specific language governing permissions and
016     * limitations under the License.
017     */
018    /*
019     * $Id: TransformerClient.java 468645 2006-10-28 06:57:24Z minchau $
020     */
021    package org.apache.xalan.transformer;
022    
023    /**
024     * A content handler can get a reference
025     * to a TransformState by implementing
026     * the TransformerClient interface.  Xalan will check for
027     * that interface before it calls startDocument, and, if it
028     * is implemented, pass in a TransformState reference to the
029     * setTransformState method.
030     */
031    public interface TransformerClient
032    {
033    
034      /**
035       * Pass in a reference to a TransformState object, which
036       * can be used during SAX ContentHandler events to obtain
037       * information about he state of the transformation. This
038       * method will be called  before each startDocument event.
039       *
040       * @param ts A reference to a TransformState object
041       */
042      void setTransformState(TransformState ts);
043    }