    001    // Copyright 2011 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.services.ajax;
    016
    017    import org.apache.tapestry5.json.JSONObject;
    018
    019    /**
    020     * A callback used with {@link AjaxResponseRenderer#addCallback(JSONCallback)}.
    021     *
    022     * @since 5.3
    023     */
    024    public interface JSONCallback
    025    {
    026        /**
    027         * Modify the reply, typically by adding additional keys.
    028         *
    029         * @param reply the reply JSON object to be sent to the client
    030         */
    031        void run(JSONObject reply);
    032
    033    }