Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.db.layer0 / src / org / simantics / db / layer0 / request / IsEnumeratedType.java

diff --git a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/request/IsEnumeratedType.java b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/request/IsEnumeratedType.java
new file mode 100644 (file)
index 0000000..6178598
--- /dev/null
+++ b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/request/IsEnumeratedType.java
@@ -0,0 +1,24 @@
+package org.simantics.db.layer0.request;\r
+\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.common.request.ResourceRead;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.layer0.Layer0;\r
+\r
+public class IsEnumeratedType extends ResourceRead<Boolean> {\r
+\r
+       public IsEnumeratedType(Resource resource) {\r
+               super(resource);\r
+       }\r
+\r
+       @Override\r
+       public Boolean perform(ReadGraph graph) throws DatabaseException {\r
+               if(graph.hasStatement(resource, Layer0.getInstance(graph).Enumeration, resource)) return true;\r
+               for(Resource st : graph.getSupertypes(resource)) {\r
+                       if(graph.syncRequest(new IsEnumeratedType(st))) return true;    \r
+               }\r
+               return false;\r
+       }\r
+    \r
+}\r