bundles/org.simantics.diagram/src/org/simantics/diagram/adapter/GetElementClassRequest.java

   1 /*******************************************************************************
   2  * Copyright (c) 2012 Association for Decentralized Information Management in
   3  * Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.diagram.adapter;
  13
  14 import org.simantics.db.AsyncReadGraph;
  15 import org.simantics.db.Resource;
  16 import org.simantics.db.common.request.BinaryAsyncRead;
  17 import org.simantics.db.procedure.AsyncProcedure;
  18 import org.simantics.g2d.canvas.ICanvasContext;
  19 import org.simantics.g2d.diagram.IDiagram;
  20 import org.simantics.g2d.element.ElementClass;
  21
  22 /**
  23  * @author Tuukka Lehtonen
  24  *
  25  * @see CreateElementClassRequest
  26  * @see NodeRequest
  27  * @see ConnectionRequest
  28  */
  29 class GetElementClassRequest extends BinaryAsyncRead<Resource, ICanvasContext, ElementClass> {
  30
  31     private final ElementFactory elementFactory;
  32     private final IDiagram       diagram;
  33
  34     public GetElementClassRequest(ElementFactory elementFactory, Resource element, ICanvasContext canvas, IDiagram diagram) {
  35         super(element, canvas);
  36         if (elementFactory == null)
  37             throw new IllegalArgumentException("elementFactory == null for " + element + " in diagram " + diagram + " with context " + canvas);
  38         this.elementFactory = elementFactory;
  39         this.diagram = diagram;
  40     }
  41
  42     @Override
  43     public void perform(AsyncReadGraph graph, AsyncProcedure<ElementClass> procedure) {
  44         elementFactory.getClass(graph, parameter2, diagram, parameter, procedure);
  45     }
  46
  47 }