Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.db.common / src / org / simantics / db / common / request / PropertyDataType.java

diff --git a/bundles/org.simantics.db.common/src/org/simantics/db/common/request/PropertyDataType.java b/bundles/org.simantics.db.common/src/org/simantics/db/common/request/PropertyDataType.java
new file mode 100644 (file)
index 0000000..a38f718
--- /dev/null
+++ b/bundles/org.simantics.db.common/src/org/simantics/db/common/request/PropertyDataType.java
@@ -0,0 +1,35 @@
+/*******************************************************************************\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.common.request;\r
+\r
+import org.simantics.databoard.Bindings;\r
+import org.simantics.databoard.type.Datatype;\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 PropertyDataType extends ResourceRead2<Datatype> {\r
+\r
+       public PropertyDataType(Resource resource, Resource property) {\r
+               super(resource, property);\r
+       }\r
+\r
+       @Override\r
+       public Datatype perform(ReadGraph graph) throws DatabaseException {\r
+               Layer0 l0 = Layer0.getInstance(graph);\r
+               Resource value = graph.getPossibleObject(resource, resource2);\r
+               if(value == null) return null;\r
+               return graph.getPossibleRelatedValue(value, l0.HasDataType, Bindings.getBindingUnchecked(Datatype.class));\r
+       }\r
+\r
+}\r