wisemapping-open-source/mindplot/src/main/javascript/Command.js

/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements.  See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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.
*
* $Id: file 64488 2006-03-10 17:32:09Z paulo $
*/

mindplot.Command = new Class(
{
    initialize: function()
    {
        this._id = mindplot.Command._nextUUID();
    },
    execute: function(commandContext)
    {
        throw "execute must be implemented.";
    },
    undoExecute: function(commandContext)
    {
        throw "undo must be implemented.";
    },
    getId:function()
    {
        return this._id;
    }
});

mindplot.Command._nextUUID = function()
{
    if (!mindplot.Command._uuid)
    {
        mindplot.Command._uuid = 1;
    }

    mindplot.Command._uuid = mindplot.Command._uuid + 1;
    return mindplot.Command._uuid;
};