bundles/org.simantics.diagram.profile/src/org/simantics/diagram/profile/view/ProfileEntryChildren.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.profile.view;
  13
  14 import java.util.ArrayList;
  15 import java.util.Collection;
  16 import java.util.Collections;
  17
  18 import org.simantics.browsing.ui.model.children.ChildRule;
  19 import org.simantics.db.ReadGraph;
  20 import org.simantics.db.Resource;
  21 import org.simantics.db.common.utils.ListUtils;
  22 import org.simantics.db.exception.DatabaseException;
  23 import org.simantics.diagram.stubs.DiagramResource;
  24 import org.simantics.scenegraph.profile.ProfileUtils;
  25
  26 public class ProfileEntryChildren implements ChildRule {
  27
  28         @Override
  29         public boolean isCompatible(Class<?> contentType) {
  30                 return contentType.equals(ResourcePair.class);
  31         }
  32
  33         @Override
  34         public Collection<?> getChildren(ReadGraph graph, Object parent)
  35                         throws DatabaseException {
  36
  37                 ResourcePair entry = (ResourcePair)parent;
  38         ArrayList<ResourcePair> entries = new ArrayList<ResourcePair>();
  39         DiagramResource DIA = DiagramResource.getInstance(graph);
  40         Resource children = graph.getPossibleObject(entry.getSecond(), DIA.HasEntries);
  41         if(children == null) return Collections.emptyList();
  42         else {
  43                 for(Resource entry2 : ProfileUtils.getProfileChildrenFromEntries(graph, children)) entries.add(new ResourcePair(entry.getFirst(), entry2));
  44                 return entries;
  45         }
  46     }
  47
  48         @Override
  49         public Collection<?> getParents(ReadGraph graph, Object child)
  50                         throws DatabaseException {
  51                 return new ArrayList<Resource>();
  52         }
  53
  54 }