Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.browsing.ui.graph.impl / src / org / simantics / browsing / ui / graph / impl / contribution / ViewpointContributionImpl.java

diff --git a/bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/contribution/ViewpointContributionImpl.java b/bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/contribution/ViewpointContributionImpl.java
new file mode 100644 (file)
index 0000000..bf59ade
--- /dev/null
+++ b/bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/contribution/ViewpointContributionImpl.java
@@ -0,0 +1,65 @@
+/*******************************************************************************\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.contribution;\r
+\r
+import java.util.Collection;\r
+\r
+import org.simantics.browsing.ui.NodeContext;\r
+import org.simantics.browsing.ui.PrimitiveQueryUpdater;\r
+import org.simantics.browsing.ui.BuiltinKeys.ViewpointContributionKey;\r
+import org.simantics.db.AsyncReadGraph;\r
+import org.simantics.db.procedure.Listener;\r
+import org.simantics.db.procedure.Procedure;\r
+import org.simantics.utils.ui.ErrorLogger;\r
+\r
+/**\r
+ * Implement {@link #children(AsyncReadGraph)} and {@link #hasChildren(AsyncReadGraph)}.\r
+ * \r
+ * @author Tuukka Lehtonen\r
+ */\r
+abstract public class ViewpointContributionImpl extends FinalViewpointContributionImpl {\r
+\r
+    public ViewpointContributionImpl(PrimitiveQueryUpdater updater,\r
+            NodeContext context, ViewpointContributionKey key) {\r
+        super(updater, context, key);\r
+    }\r
+\r
+    @Override\r
+    protected Procedure<Collection<NodeContext>> createProcedure() {\r
+\r
+        return new Listener<Collection<NodeContext>>() {\r
+\r
+            @Override\r
+            public void execute(Collection<NodeContext> result) {\r
+                replaceChildrenResult(result);\r
+            }\r
+\r
+            @Override\r
+            public boolean isDisposed() {\r
+                return updater.isDisposed();\r
+            }\r
+\r
+            public void exception(Throwable t) {\r
+                ErrorLogger.defaultLogError("LazyContributionImpl.childQuery failed, see exception for details.", t);\r
+            }\r
+\r
+            @Override\r
+            public String toString() {\r
+                return "LazyContributionImpl[" + System.identityHashCode(ViewpointContributionImpl.this) + "].childProcedure";\r
+            }\r
+\r
+        };\r
+\r
+    }\r
+\r
+\r
+}\r