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diff --git a/bundles/org.simantics.browsing.ui.model/src/org/simantics/browsing/ui/model/children/CompositeChildRule.java b/bundles/org.simantics.browsing.ui.model/src/org/simantics/browsing/ui/model/children/CompositeChildRule.java
new file mode 100644
index 000000000..dec7b58a3
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+++ b/bundles/org.simantics.browsing.ui.model/src/org/simantics/browsing/ui/model/children/CompositeChildRule.java
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+/*******************************************************************************
+ * Copyright (c) 2010, 2011 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.browsing.ui.model.children;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.common.utils.OrderedSetUtils;
+import org.simantics.db.exception.DatabaseException;
+
+public class CompositeChildRule implements ChildRule {    
+    List<ChildRule> childRules;
+    
+    public CompositeChildRule(List<ChildRule> childRules) {
+        this.childRules = childRules;
+    }
+    
+    public CompositeChildRule(ReadGraph graph, Resource orderedSet) throws DatabaseException {
+        List<Resource> childRuleResources = OrderedSetUtils.toList(graph, orderedSet);
+        childRules = new ArrayList<ChildRule>(childRuleResources.size());
+        for(Resource childRuleResource : childRuleResources)
+            childRules.add(graph.adapt(childRuleResource, ChildRule.class));
+    }
+    
+    @Override
+    public Collection<?> getChildren(ReadGraph graph, Object parent) throws DatabaseException {
+        Collection<Object> result = Collections.singleton(parent);
+        for(int i=0;i<childRules.size();++i) {
+            ChildRule rule = childRules.get(i);
+            ArrayList<Object> children = new ArrayList<Object>();
+            for(Object r : result)
+                children.addAll(rule.getChildren(graph, r));
+            result = children;
+        }
+        return result;
+    }
+    
+    @Override
+    public Collection<?> getParents(ReadGraph graph, Object child) throws DatabaseException {
+        Collection<Object> result = Collections.singleton(child);
+        for(int i=childRules.size()-1;i>=0;--i) {
+            ChildRule rule = childRules.get(i);
+            ArrayList<Object> parents = new ArrayList<Object>();
+            for(Object r : result)
+                parents.addAll(rule.getParents(graph, r));
+            result = parents;
+        }
+        return result;
+    }
+
+    @Override
+    public boolean isCompatible(Class<?> contentType) {
+        if(childRules.isEmpty())
+           return true; 
+        return childRules.get(0).isCompatible(contentType);
+    }
+}