--- /dev/null
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ * VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.browsing.ui.graph.impl;\r
+\r
+import java.util.Collection;\r
+import java.util.function.Consumer;\r
+\r
+import org.simantics.browsing.ui.BuiltinKeys;\r
+import org.simantics.browsing.ui.BuiltinKeys.ViewpointKey;\r
+import org.simantics.browsing.ui.DataSource;\r
+import org.simantics.browsing.ui.NodeContext;\r
+import org.simantics.browsing.ui.PrimitiveQueryUpdater;\r
+import org.simantics.browsing.ui.common.NodeContextUtil;\r
+import org.simantics.browsing.ui.common.viewpoints.LazyContainerViewpoint;\r
+import org.simantics.browsing.ui.content.Viewpoint;\r
+import org.simantics.browsing.ui.content.ViewpointFactory;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.layer0.Layer0;\r
+\r
+public class SuperTypeOfViewpointFactory implements ViewpointFactory {\r
+\r
+ @Override\r
+ public Viewpoint create(final PrimitiveQueryUpdater updater, final NodeContext context, final ViewpointKey key) {\r
+ assert(updater != null);\r
+ assert(context != null);\r
+\r
+ final LazyContainerViewpoint result = new LazyContainerViewpoint();\r
+\r
+ DataSource<ReadGraph> source = updater.getDataSource(ReadGraph.class);\r
+ if (source == null)\r
+ return result;\r
+\r
+ final Resource inputResource = (Resource) context.getConstant(BuiltinKeys.INPUT);\r
+ assert(inputResource != null);\r
+\r
+ source.schedule(new Consumer<ReadGraph>() {\r
+ @Override\r
+ public void accept(ReadGraph source) {\r
+ try {\r
+ Collection<Resource> children = source.getObjects(inputResource, Layer0.getInstance(source).SupertypeOf);\r
+ NodeContext[] resultContexts = NodeContextUtil.toContextsWithInput(children);\r
+ result.setChildren(updater, resultContexts);\r
+ result.setHasChildren(resultContexts.length > 0);\r
+ \r
+ updater.scheduleReplace(context, key, result);\r
+ } catch (DatabaseException e) {\r
+ \r
+ }\r
+ }\r
+ });\r
+\r
+ return result;\r
+ }\r
+\r
+ @Override\r
+ public String toString() {\r
+ return "Subtypes";\r
+ }\r
+\r
+}\r