]> gerrit.simantics Code Review - simantics/platform.git/blob - modelBrowser2/contributions/Sheets.java
Fixed multiple issues causing dangling references to discarded queries
[simantics/platform.git] / modelBrowser2 / contributions / Sheets.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.modeling.ui.modelBrowser2.contributions;
13
14 import java.util.Collection;
15
16 import org.simantics.db.ReadGraph;
17 import org.simantics.db.Resource;
18 import org.simantics.db.common.request.ObjectsWithType;
19 import org.simantics.db.exception.DatabaseException;
20 import org.simantics.db.request.Read;
21 import org.simantics.layer0.Layer0;
22 import org.simantics.modeling.ui.modelBrowser2.model.SheetsNode;
23 import org.simantics.spreadsheet.resource.SpreadsheetResource;
24 import org.simantics.structural.ui.modelBrowser.contributions.LibraryViewpointContributor;
25
26 public class Sheets extends LibraryViewpointContributor<SheetsNode> {
27
28     @Override
29     protected Read<Collection<Resource>> getChildRequest(ReadGraph graph, SheetsNode lib) throws DatabaseException {
30         Layer0 b = Layer0.getInstance(graph);
31         SpreadsheetResource sr = SpreadsheetResource.getInstance(graph);
32         if (sr.Spreadsheet == null)
33             return null;
34
35         return new ObjectsWithType(lib.resource, b.ConsistsOf, sr.Spreadsheet);
36     }
37
38 }