]> gerrit.simantics Code Review - simantics/platform.git/blob - bundles/org.simantics.diagram/src/org/simantics/diagram/adapter/LoadRequest.java
Fixed multiple issues causing dangling references to discarded queries
[simantics/platform.git] / bundles / org.simantics.diagram / src / org / simantics / diagram / adapter / LoadRequest.java
1 /*******************************************************************************
2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
3  * in 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.procedure.AsyncProcedure;
17 import org.simantics.g2d.canvas.ICanvasContext;
18 import org.simantics.g2d.diagram.IDiagram;
19 import org.simantics.g2d.element.ElementClass;
20 import org.simantics.g2d.element.ElementHints;
21 import org.simantics.g2d.element.IElement;
22 import org.simantics.g2d.element.impl.Element;
23
24 class LoadRequest extends BaseRequest2<Resource, IElement> {
25
26     final IDiagram diagram;
27     final ElementFactory factory;
28     final ElementClass clazz;
29
30     public LoadRequest(ICanvasContext canvas, IDiagram diagram, ElementFactory factory, ElementClass clazz, Resource resource) {
31         super(canvas, resource);
32         this.diagram = diagram;
33         this.factory = factory;
34         this.clazz = clazz;
35     }
36
37     @Override
38     public void perform(AsyncReadGraph graph, final AsyncProcedure<IElement> procedure) {
39         IElement e = Element.spawnNew(clazz);
40         e.setHint(ElementHints.KEY_OBJECT, data);
41         factory.load(graph, canvas, diagram, data, e, procedure);
42     }
43
44 }