X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.db.common%2Fsrc%2Forg%2Fsimantics%2Fdb%2Fcommon%2Fprimitiverequest%2FForEachPredicateBasedOn.java;fp=bundles%2Forg.simantics.db.common%2Fsrc%2Forg%2Fsimantics%2Fdb%2Fcommon%2Fprimitiverequest%2FForEachPredicateBasedOn.java;h=6c5ef336c63833d12d37c9296b51829bafa6d16f;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.db.common/src/org/simantics/db/common/primitiverequest/ForEachPredicateBasedOn.java b/bundles/org.simantics.db.common/src/org/simantics/db/common/primitiverequest/ForEachPredicateBasedOn.java
new file mode 100644
index 000000000..6c5ef336c
--- /dev/null
+++ b/bundles/org.simantics.db.common/src/org/simantics/db/common/primitiverequest/ForEachPredicateBasedOn.java
@@ -0,0 +1,55 @@
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.db.common.primitiverequest;
+
+import org.simantics.db.AsyncReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.common.procedure.adapter.AsyncProcedureDelegate;
+import org.simantics.db.common.procedure.guarded.GuardedAsyncMultiProcedure;
+import org.simantics.db.common.request.ResourceAsyncMultiRead2;
+import org.simantics.db.procedure.AsyncMultiProcedure;
+
+final public class ForEachPredicateBasedOn extends ResourceAsyncMultiRead2<Resource> {
+
+    public ForEachPredicateBasedOn(Resource resource, Resource superRelation) {
+        super(resource, superRelation);
+    }
+
+	@Override
+	public void perform(AsyncReadGraph graph, AsyncMultiProcedure<Resource> procedure) {
+		
+		graph.forEachPredicate(resource, new GuardedAsyncMultiProcedure<Resource>(procedure) {
+
+			@Override
+			public void execute(AsyncReadGraph graph, final Resource predicate) {
+				
+				inc();
+				
+				graph.forIsSubrelationOf(predicate, resource2, new AsyncProcedureDelegate<Boolean>(this) {
+
+					@Override
+					public void execute(AsyncReadGraph graph, Boolean isSubrelation) {
+						if(isSubrelation) {
+							offer(graph, predicate);
+						}
+						dec(graph);
+					}
+					
+				});
+				
+			}
+    		
+    	});
+		
+	}
+
+}