# Source: vertx-shell-js/command_registration.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-shell-js/command_registration */
    var utils = require('vertx-js/util/utils');
    var Command = require('vertx-shell-js/command');

    var io = Packages.io;
    var JsonObject = io.vertx.core.json.JsonObject;
    var JCommandRegistration = io.vertx.ext.shell.registry.CommandRegistration;

    /**

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

      var j_commandRegistration = j_val;
      var that = this;

      /**
       @return the registered command.

       @public

       @return {Command}
       */
      this.command = function() {
        var __args = arguments;
        if (__args.length === 0) {
          return utils.convReturnVertxGen(j_commandRegistration["command()"](), Command);
        } else throw new TypeError('function invoked with invalid arguments');
      };

      /**
       Unregister the current command

       @public
       @param handler {function}
       */
      this.unregister = function() {
        var __args = arguments;
        if (__args.length === 0) {
          j_commandRegistration["unregister()"]();
        }  else if (__args.length === 1 && typeof __args[0] === 'function') {
          j_commandRegistration["unregister(io.vertx.core.Handler)"](function(ar) {
          if (ar.succeeded()) {
            __args[0](null, null);
          } else {
            __args[0](null, ar.cause());
          }
        });
        } 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_commandRegistration;
    };

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