foam-framework/js/foam/core/dao/KeyCollector.js

MVC metaprogramming framework

/**
 * @license
 * Copyright 2015 Google Inc. All Rights Reserved.
 *
 * Licensed 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.
 */

CLASS({
  name: 'KeyCollector',
  package: 'foam.core.dao',
  help: "A sink that collects the keys of the objects it's given.",

  properties: [
    {
      name: 'keys',
      type: 'Array',
      factory: function() { return []; }
    }
  ],

  methods: {
    put: function(value) {
      this.keys.push(value.id);
    },
    remove: function(value) {
      this.keys.remove(value.id);
    }
  }
});