X-Git-Url: https://gerrit.simantics.org/r/gitweb?p=simantics%2Fplatform.git;a=blobdiff_plain;f=bundles%2Forg.simantics.browsing.ui.graph.impl%2Fsrc%2Forg%2Fsimantics%2Fbrowsing%2Fui%2Fgraph%2Fimpl%2FInstanceOfViewpointFactory.java;fp=bundles%2Forg.simantics.browsing.ui.graph.impl%2Fsrc%2Forg%2Fsimantics%2Fbrowsing%2Fui%2Fgraph%2Fimpl%2FInstanceOfViewpointFactory.java;h=c6adc1e91af11fe9a0d000143ceeba70bf1b87d9;hp=0000000000000000000000000000000000000000;hb=969bd23cab98a79ca9101af33334000879fb60c5;hpb=866dba5cd5a3929bbeae85991796acb212338a08

diff --git a/bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/InstanceOfViewpointFactory.java b/bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/InstanceOfViewpointFactory.java
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+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.browsing.ui.graph.impl;
+
+import java.util.Collection;
+
+import org.simantics.browsing.ui.NodeContext;
+import org.simantics.browsing.ui.PrimitiveQueryUpdater;
+import org.simantics.browsing.ui.BuiltinKeys.ViewpointKey;
+import org.simantics.browsing.ui.content.Viewpoint;
+import org.simantics.browsing.ui.content.ViewpointFactory;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.layer0.Layer0;
+
+public class InstanceOfViewpointFactory implements ViewpointFactory {
+
+    @Override
+    public Viewpoint create(final PrimitiveQueryUpdater updater, final NodeContext context, final ViewpointKey key) {
+        assert(updater != null);
+        assert(context != null);
+        return new LazyViewpoint(updater, context, key) {
+            @Override
+            public NodeContext[] children(ReadGraph graph) throws DatabaseException {
+            	Layer0 L0 = Layer0.getInstance(graph);
+                Collection<Resource> children = graph.getObjects(getInput(Resource.class), L0.InstanceOf);
+                return toContextsWithInput(children);
+            }
+            @Override
+            public Boolean hasChildren(ReadGraph graph) throws DatabaseException {
+            	Layer0 L0 = Layer0.getInstance(graph);
+                Collection<Resource> children = graph.getObjects(getInput(Resource.class), L0.InstanceOf);
+                return Boolean.valueOf(children.size() > 0);
+            }
+        };
+    }
+
+    @Override
+    public String toString() {
+        return "Types";
+    }
+
+}