Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.db.layer0 / src / org / simantics / db / layer0 / validation / GetConstraints.java

diff --git a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/validation/GetConstraints.java b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/validation/GetConstraints.java
new file mode 100644 (file)
index 0000000..9cadfc4
--- /dev/null
+++ b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/validation/GetConstraints.java
@@ -0,0 +1,30 @@
+package org.simantics.db.layer0.validation;\r
+\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.layer0.Layer0;\r
+\r
+public class GetConstraints extends ResourceRead<Set<Resource>> {\r
+\r
+       public GetConstraints(Resource resource) {\r
+               super(resource);\r
+       }\r
+\r
+       @Override\r
+       public Set<Resource> perform(ReadGraph graph) throws DatabaseException {\r
+               \r
+               Layer0 L0 = Layer0.getInstance(graph);\r
+               HashSet<Resource> result = new HashSet<Resource>(); \r
+               for(Resource type : graph.getTypes(resource)) {\r
+                       result.addAll(graph.getObjects(type, L0.HasConstraint));\r
+               }\r
+               return result;\r
+               \r
+       }\r
+       \r
+}
\ No newline at end of file