Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.db.layer0 / src / org / simantics / db / layer0 / adapter / impl / RootParentSubgraphExtent.java

diff --git a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/adapter/impl/RootParentSubgraphExtent.java b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/adapter/impl/RootParentSubgraphExtent.java
new file mode 100644 (file)
index 0000000..f611fbc
--- /dev/null
+++ b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/adapter/impl/RootParentSubgraphExtent.java
@@ -0,0 +1,45 @@
+/*******************************************************************************\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.db.layer0.adapter.impl;\r
+\r
+import org.simantics.db.AsyncReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.Statement;\r
+import org.simantics.db.procedure.AsyncProcedure;\r
+import org.simantics.layer0.Layer0;\r
+\r
+public class RootParentSubgraphExtent extends TypeSubgraphExtent {\r
+\r
+       public static boolean DEBUG = false;\r
+       \r
+       final private Classifier classifier;\r
+       \r
+       public RootParentSubgraphExtent(final Resource root) {\r
+               this.classifier = new Classifier() {\r
+\r
+                       @Override\r
+                       public void classify(AsyncReadGraph graph, Statement statement, ExtentStatus objectExtent, Callback callback) {\r
+                               if(!root.equals(statement.getSubject())) return;\r
+                               if(!graph.getService(Layer0.class).PartOf.equals(statement.getPredicate())) return;\r
+                               if(!ExtentStatus.EXTERNAL.equals(objectExtent)) return;\r
+                               callback.statement(statement, true); \r
+                       }\r
+                       \r
+               };\r
+       }\r
+\r
+       @Override\r
+       public void accept(AsyncReadGraph graph, final Resource resource, final AsyncProcedure<Classifier> procedure, final Callback callback) {\r
+               procedure.execute(graph, classifier);\r
+       }\r
+\r
+}\r