Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.db.common / src / org / simantics / db / common / primitiverequest / ForEachPredicateBasedOn.java

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 (file)
index 0000000..6c5ef33
--- /dev/null
+++ b/bundles/org.simantics.db.common/src/org/simantics/db/common/primitiverequest/ForEachPredicateBasedOn.java
@@ -0,0 +1,55 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.db.common.primitiverequest;\r
+\r
+import org.simantics.db.AsyncReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.common.procedure.adapter.AsyncProcedureDelegate;\r
+import org.simantics.db.common.procedure.guarded.GuardedAsyncMultiProcedure;\r
+import org.simantics.db.common.request.ResourceAsyncMultiRead2;\r
+import org.simantics.db.procedure.AsyncMultiProcedure;\r
+\r
+final public class ForEachPredicateBasedOn extends ResourceAsyncMultiRead2<Resource> {\r
+\r
+    public ForEachPredicateBasedOn(Resource resource, Resource superRelation) {\r
+        super(resource, superRelation);\r
+    }\r
+\r
+       @Override\r
+       public void perform(AsyncReadGraph graph, AsyncMultiProcedure<Resource> procedure) {\r
+               \r
+               graph.forEachPredicate(resource, new GuardedAsyncMultiProcedure<Resource>(procedure) {\r
+\r
+                       @Override\r
+                       public void execute(AsyncReadGraph graph, final Resource predicate) {\r
+                               \r
+                               inc();\r
+                               \r
+                               graph.forIsSubrelationOf(predicate, resource2, new AsyncProcedureDelegate<Boolean>(this) {\r
+\r
+                                       @Override\r
+                                       public void execute(AsyncReadGraph graph, Boolean isSubrelation) {\r
+                                               if(isSubrelation) {\r
+                                                       offer(graph, predicate);\r
+                                               }\r
+                                               dec(graph);\r
+                                       }\r
+                                       \r
+                               });\r
+                               \r
+                       }\r
+               \r
+       });\r
+               \r
+       }\r
+\r
+}\r