    001    // Copyright 2009 The Apache Software Foundation
    002    //
    003    // Licensed under the Apache License, Version 2.0 (the "License");
    004    // you may not use this file except in compliance with the License.
    005    // You may obtain a copy of the License at
    006    //
    007    //     http://www.apache.org/licenses/LICENSE-2.0
    008    //
    009    // Unless required by applicable law or agreed to in writing, software
    010    // distributed under the License is distributed on an "AS IS" BASIS,
    011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    012    // See the License for the specific language governing permissions and
    013    // limitations under the License.
    014
    015    package org.apache.tapestry5.dom;
    016
    017    /**
    018     * A callback interface used navigate the {@link org.apache.tapestry5.dom.Element}s of a document.
    019     *
    020     * @since 5.1.0.0
    021     */
    022    public interface Visitor
    023    {
    024        /**
    025         * Called for each Element being visited.
    026         *
    027         * @param element visited
    028         */
    029        void visit(Element element);
    030    }