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

47 lines
1.2 KiB
JavaScript

/*
* Copyright [2011] [wisemapping]
*
* Licensed under the Apache License, Version 2.0 (the "License") plus the
* "powered by wisemapping" text requirement on every single page;
* you may not use this file except in compliance with the License.
* You may obtain a copy of the license at
*
* http://www.wisemapping.org/license
*
* 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.
*/
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;
};