+package org.simantics.structural2.modelingRules;\r
+\r
+import java.util.Collection;\r
+import java.util.HashSet;\r
+import java.util.Set;\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.structural.stubs.StructuralResource2;\r
+\r
+public class AllowedConnectionTypes extends ResourceRead<Collection<Resource>> {\r
+\r
+ public AllowedConnectionTypes(Resource connectionPoint) {\r
+ super(connectionPoint);\r
+ }\r
+\r
+ @Override\r
+ public Collection<Resource> perform(ReadGraph graph) throws DatabaseException {\r
+ StructuralResource2 STR = StructuralResource2.getInstance(graph);\r
+ Collection<Resource> types = graph.getObjects(resource, STR.AllowsConnectionType);\r
+ Set<Resource> result = new HashSet<Resource>(types);\r
+ for(Resource type : types)\r
+ for(Resource override : graph.getObjects(type, STR.OverridesConnectionType))\r
+ result.remove(override);\r
+ return result;\r
+ }\r
+\r
+}\r