    001// Copyright 2013-2014 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
    015package org.apache.tapestry5.internal.webresources;
    016
    017import org.mozilla.javascript.ScriptableObject;
    018
    019public interface RhinoExecutor
    020{
    021    /**
    022     * Invokes the named function, which must return a scriptable object (typically, a JavaScript Object).
    023     *
    024     * @param functionName
    025     *         name of function visible to the executor's scope (e.g., loaded from the scripts associated
    026     *         with the executor).
    027     * @param arguments
    028     *         Arguments to pass to the object which must be convertable to JavaScript types; Strings work well here.
    029     * @return result of invoking the function.
    030     */
    031    ScriptableObject invokeFunction(String functionName, Object... arguments);
    032
    033    /**
    034     * Discards the executor, returning it to the pool for reuse.
    035     */
    036    void discard();
    037}