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.exception.DatabaseException;
  22 import org.simantics.diagram.stubs.DiagramResource;
  23 import org.simantics.scenegraph.profile.ProfileUtils;
  24
  25 public class ProfileEntryChildren implements ChildRule {
  26
  27         @Override
  28         public boolean isCompatible(Class<?> contentType) {
  29                 return contentType.equals(ProfileTuple.class);
  30         }
  31
  32         @Override
  33         public Collection<?> getChildren(ReadGraph graph, Object parent)
  34                         throws DatabaseException {
  35                 ProfileTuple entry = (ProfileTuple) parent;
  36                 ArrayList<ProfileTuple> entries = new ArrayList<>();
  37                 DiagramResource DIA = DiagramResource.getInstance(graph);
  38                 Resource children = graph.getPossibleObject(entry.getEntry(), DIA.HasEntries);
  39                 if (children != null) {
  40                         for (Resource entry2 : ProfileUtils.getProfileChildrenFromEntries(graph, children))
  41                                 entries.add(new ProfileTuple(entry.getBaseProfile(), entry2, entry.getRuntimeDiagram()));
  42                         return entries;
  43                 }
  44                 return Collections.emptyList();
  45         }
  46
  47         @Override
  48         public Collection<?> getParents(ReadGraph graph, Object child)
  49                         throws DatabaseException {
  50                 return Collections.emptyList();
  51         }
  52
  53 }