# Source: vertx-web-js/mvel_template_engine.js

    /*
     * Copyright 2014 Red Hat, Inc.
     *
     * Red Hat licenses this file to you under the Apache License, version 2.0
     * (the "License"); you may not use this file except in compliance with the
     * License.  You may obtain a copy of the License at:
     *
     * http://www.apache.org/licenses/LICENSE-2.0
     *
     * Unless required by applicable law or agreed to in writing, software
     * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
     * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
     * License for the specific language governing permissions and limitations
     * under the License.
     */

    /** @module vertx-web-js/mvel_template_engine */
    var utils = require('vertx-js/util/utils');
    var Buffer = require('vertx-js/buffer');
    var TemplateEngine = require('vertx-web-js/template_engine');
    var RoutingContext = require('vertx-web-js/routing_context');

    var io = Packages.io;
    var JsonObject = io.vertx.core.json.JsonObject;
    var JMVELTemplateEngine = io.vertx.ext.web.templ.MVELTemplateEngine;

    /**
     A template engine that uses the Handlebars library.

     @class
    */
    var MVELTemplateEngine = function(j_val) {

      var j_mVELTemplateEngine = j_val;
      var that = this;
      TemplateEngine.call(this, j_val);

      /**

       @public
       @param arg0 {RoutingContext}
       @param arg1 {string}
       @param arg2 {function}
       */
      this.render = function(arg0, arg1, arg2) {
        var __args = arguments;
        if (__args.length === 3 && typeof __args[0] === 'object' && __args[0]._jdel && typeof __args[1] === 'string' && typeof __args[2] === 'function') {
          j_mVELTemplateEngine["render(io.vertx.ext.web.RoutingContext,java.lang.String,io.vertx.core.Handler)"](arg0._jdel, arg1, function(ar) {
          if (ar.succeeded()) {
            arg2(utils.convReturnVertxGen(ar.result(), Buffer), null);
          } else {
            arg2(null, ar.cause());
          }
        });
        } else throw new TypeError('function invoked with invalid arguments');
      };

      /**
       Set the extension for the engine

       @public
       @param extension {string} the extension
       @return {MVELTemplateEngine} a reference to this for fluency
       */
      this.setExtension = function(extension) {
        var __args = arguments;
        if (__args.length === 1 && typeof __args[0] === 'string') {
          return utils.convReturnVertxGen(j_mVELTemplateEngine["setExtension(java.lang.String)"](extension), MVELTemplateEngine);
        } else throw new TypeError('function invoked with invalid arguments');
      };

      /**
       Set the max cache size for the engine

       @public
       @param maxCacheSize {number} the maxCacheSize
       @return {MVELTemplateEngine} a reference to this for fluency
       */
      this.setMaxCacheSize = function(maxCacheSize) {
        var __args = arguments;
        if (__args.length === 1 && typeof __args[0] ==='number') {
          return utils.convReturnVertxGen(j_mVELTemplateEngine["setMaxCacheSize(int)"](maxCacheSize), MVELTemplateEngine);
        } else throw new TypeError('function invoked with invalid arguments');
      };

      // A reference to the underlying Java delegate
      // NOTE! This is an internal API and must not be used in user code.
      // If you rely on this property your code is likely to break if we change it / remove it without warning.
      this._jdel = j_mVELTemplateEngine;
    };

    /**
     Create a template engine using defaults

     @memberof module:vertx-web-js/mvel_template_engine

     @return {MVELTemplateEngine} the engine
     */
    MVELTemplateEngine.create = function() {
      var __args = arguments;
      if (__args.length === 0) {
        return utils.convReturnVertxGen(JMVELTemplateEngine["create()"](), MVELTemplateEngine);
      } else throw new TypeError('function invoked with invalid arguments');
    };

    // We export the Constructor function
    module.exports = MVELTemplateEngine;