X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.db.layer0%2Fsrc%2Forg%2Fsimantics%2Fdb%2Flayer0%2Futil%2FLayer0Utils.java;h=6b9b2fc6502845763871aa1383d8d8a1835ef33b;hb=5ea4ad47a74e042f8728f48a0635f5f291519b29;hp=c04ca3cd1e0b758d1d66a8a8628887dab576f5cc;hpb=f2f1f3fe7b467654a0afa4e586ebcd06a54ebfea;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/util/Layer0Utils.java b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/util/Layer0Utils.java
index c04ca3cd1..6b9b2fc65 100644
--- a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/util/Layer0Utils.java
+++ b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/util/Layer0Utils.java
@@ -74,6 +74,7 @@ import org.simantics.db.common.request.ObjectsWithType;
 import org.simantics.db.common.request.PossibleChild;
 import org.simantics.db.common.request.PossibleIndexRoot;
 import org.simantics.db.common.utils.NameUtils;
+import org.simantics.db.event.ChangeListener;
 import org.simantics.db.exception.CancelTransactionException;
 import org.simantics.db.exception.DatabaseException;
 import org.simantics.db.exception.ServiceException;
@@ -99,6 +100,7 @@ import org.simantics.db.service.ClusterControl;
 import org.simantics.db.service.ClusteringSupport;
 import org.simantics.db.service.CollectionSupport;
 import org.simantics.db.service.DebugSupport;
+import org.simantics.db.service.GraphChangeListenerSupport;
 import org.simantics.db.service.ManagementSupport;
 import org.simantics.db.service.UndoRedoSupport;
 import org.simantics.db.service.XSupport;
@@ -1341,6 +1343,11 @@ public class Layer0Utils {
     	}
     	return result;
     }
+
+    public static Resource getPossiblePredicateByNameFromType(ReadGraph graph, Resource type, String name) throws DatabaseException {
+    	Map<String,Resource> domain = getDomainOf(graph, type);
+    	return domain.get(name); 
+    }
     
     public static Resource getPossiblePredicateByName(ReadGraph graph, Resource instance, String predicateName) throws DatabaseException {
     	for(Resource type : graph.getPrincipalTypes(instance)) {
@@ -1430,4 +1437,13 @@ public class Layer0Utils {
         }
         return false;
     }
+
+    public static void addMetadataListener(ChangeListener listener) {
+        SimanticsInternal.getSession().getService(GraphChangeListenerSupport.class).addMetadataListener(listener);
+    }
+
+    public static void removeMetadataListener(ChangeListener listener) {
+        SimanticsInternal.getSession().getService(GraphChangeListenerSupport.class).removeMetadataListener(listener);
+    }
+
 }