bundles/org.simantics.diagram.profile/src/org/simantics/diagram/profile/view/ProfileEntryChildren.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
   3  * in Industry THTH ry.\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.diagram.profile.view;\r
  13 \r
  14 import java.util.ArrayList;\r
  15 import java.util.Collection;\r
  16 import java.util.Collections;\r
  17 \r
  18 import org.simantics.browsing.ui.model.children.ChildRule;\r
  19 import org.simantics.db.ReadGraph;\r
  20 import org.simantics.db.Resource;\r
  21 import org.simantics.db.common.utils.ListUtils;\r
  22 import org.simantics.db.exception.DatabaseException;\r
  23 import org.simantics.diagram.stubs.DiagramResource;\r
  24 import org.simantics.scenegraph.profile.ProfileUtils;\r
  25 \r
  26 public class ProfileEntryChildren implements ChildRule {\r
  27 \r
  28         @Override\r
  29         public boolean isCompatible(Class<?> contentType) {\r
  30                 return contentType.equals(ResourcePair.class);\r
  31         }\r
  32 \r
  33         @Override\r
  34         public Collection<?> getChildren(ReadGraph graph, Object parent)\r
  35                         throws DatabaseException {\r
  36 \r
  37                 ResourcePair entry = (ResourcePair)parent;\r
  38         ArrayList<ResourcePair> entries = new ArrayList<ResourcePair>();\r
  39         DiagramResource DIA = DiagramResource.getInstance(graph);\r
  40         Resource children = graph.getPossibleObject(entry.getSecond(), DIA.HasEntries);\r
  41         if(children == null) return Collections.emptyList();\r
  42         else {\r
  43                 for(Resource entry2 : ProfileUtils.getProfileChildrenFromEntries(graph, children)) entries.add(new ResourcePair(entry.getFirst(), entry2));\r
  44                 return entries;\r
  45         }\r
  46     }\r
  47 \r
  48         @Override\r
  49         public Collection<?> getParents(ReadGraph graph, Object child)\r
  50                         throws DatabaseException {\r
  51                 return new ArrayList<Resource>();\r
  52         }\r
  53 \r
  54 }\r