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 }