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diff --git a/bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/LazyResourceQueryContainer.java b/bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/LazyResourceQueryContainer.java
new file mode 100644
index 000000000..fca41a680
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+++ b/bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/LazyResourceQueryContainer.java
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+/*******************************************************************************
+ * 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.browsing.ui.graph.impl;
+
+import java.util.function.Consumer;
+
+import org.simantics.browsing.ui.DataSource;
+import org.simantics.browsing.ui.NodeContext;
+import org.simantics.browsing.ui.NodeContext.PrimitiveQueryKey;
+import org.simantics.browsing.ui.PrimitiveQueryProcessor;
+import org.simantics.browsing.ui.PrimitiveQueryUpdater;
+import org.simantics.browsing.ui.graph.impl.request.ResourceQuery;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.procedure.Listener;
+import org.simantics.utils.Container;
+
+public abstract class LazyResourceQueryContainer<Result> implements Container<Result> {
+
+    final private ResourceQuery<Result> query;
+
+    final private PrimitiveQueryUpdater updater;
+
+    private final Listener<Result> procedure;
+
+    final protected NodeContext        context;
+
+    private Result                      result;
+
+    private boolean                     computed = false;
+
+    /**
+     * Computes the graph query result. This will get called asynchronously.
+     * 
+     * @param graph
+     * @return
+     */
+    protected abstract Result compute(ReadGraph graph) throws DatabaseException;
+
+    /**
+     * Needed for retrieving the actual primitive query key that is used to with
+     * {@link PrimitiveQueryUpdater#scheduleReplace(NodeContext, PrimitiveQueryKey, Object)}
+     * inside the {@link #query} that is initialized in the constructor
+     * {@link #LazyResourceQueryContainer(PrimitiveQueryUpdater, NodeContext, Object, Object)}
+     * .
+     * 
+     * <p>
+     * This key should originally be received by the actual
+     * {@link PrimitiveQueryProcessor} that has been invoked to compute the
+     * result that will be stored in this {@link LazyResourceQueryContainer}.
+     * 
+     * @return
+     */
+    protected abstract PrimitiveQueryKey<Container<Result>> getKey();
+
+    public LazyResourceQueryContainer(final PrimitiveQueryUpdater updater, final NodeContext context, Result initial) {
+
+        this.updater = updater;
+        this.context = context;
+        this.result = initial;
+
+        this.query = new ResourceQuery<Result>(getKey(), context) {
+
+            @Override
+            public Result perform(ReadGraph graph) throws DatabaseException {
+                return compute(graph);
+            }
+
+        };
+
+        procedure = new Listener<Result>() {
+
+            @Override
+            public void execute(Result result) {
+                setResult(result);
+                updater.scheduleReplace(context, getKey(), LazyResourceQueryContainer.this);
+            }
+
+            @Override
+            public boolean isDisposed() {
+                return updater.isDisposed();
+            }
+
+            public void exception(Throwable t) {
+                System.out.print("LazyResourceQueryContainer2.request failed: ");
+                t.printStackTrace();
+            }
+
+        };
+
+    }
+
+    protected PrimitiveQueryUpdater getUpdater() {
+        return updater;
+    }
+
+    private void setResult(Result result) {
+        this.result = result;
+        computed = true;
+    }
+
+    @Override
+    public Result get() {
+
+        if (!computed) {
+
+            final DataSource<ReadGraph> source = updater.getDataSource(ReadGraph.class);
+            assert(source != null);
+
+            source.schedule(new Consumer<ReadGraph>() {
+
+                @Override
+                public void accept(ReadGraph source) {
+
+                    source.asyncRequest(query, procedure);
+
+                }
+
+            });
+
+        }
+
+        return result;
+
+    }
+
+}