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diff --git a/bundles/org.simantics.db.impl/src/org/simantics/db/impl/query/MultiReadEntry.java b/bundles/org.simantics.db.impl/src/org/simantics/db/impl/query/MultiReadEntry.java
new file mode 100644
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+++ b/bundles/org.simantics.db.impl/src/org/simantics/db/impl/query/MultiReadEntry.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.db.impl.query;
+
+import java.util.ArrayList;
+
+import org.simantics.db.AsyncReadGraph;
+import org.simantics.db.common.exception.DebugException;
+import org.simantics.db.impl.graph.ReadGraphImpl;
+import org.simantics.db.impl.query.QueryProcessor.AsyncBarrier;
+import org.simantics.db.procedure.AsyncMultiProcedure;
+import org.simantics.db.request.MultiRead;
+import org.simantics.db.request.RequestFlags;
+import org.simantics.utils.datastructures.Pair;
+
+final public class MultiReadEntry<T> extends CacheEntryBase {
+
+//    public ArrayList<Pair<AsyncMultiProcedure<T>, AsyncBarrier>> procs;
+
+    protected MultiRead<T> request;
+    
+    public MultiReadEntry(MultiRead<T> request) {
+    	this.request = request;
+    }
+
+    @Override
+    int makeHash() {
+    	return request.hashCode();
+    }
+    
+    @Override
+    public Object getOriginalRequest() {
+        return request;
+    }
+    
+    @Override
+    public void discard() {
+    	super.discard();
+    	request = null;
+    	setResult(null);
+    }
+    
+    synchronized public void finish(AsyncReadGraph graph) {
+    	
+    	assert(isPending());
+
+        ArrayList<Pair<AsyncMultiProcedure<T>, AsyncBarrier>> p = null;
+
+        synchronized(this) {
+
+        	setReady();
+        	
+//            p = procs;
+//            procs = null; 
+        
+        }
+        
+//        if(p != null) {
+//        	ArrayList<T> v = (ArrayList<T>)getResult();
+//        	if(v != null) {
+//        		for(Pair<AsyncMultiProcedure<T>, AsyncBarrier> pair : p) {
+//        			for(T t : v) pair.first.execute(graph, t);
+//        		}
+//        	}
+//        	for(Pair<AsyncMultiProcedure<T>, AsyncBarrier> pair : p) {
+//        		pair.first.finished(graph);
+//        		pair.second.dec();
+//        	}
+//        }
+        
+    }
+
+    @Override
+    final public void clearResult(QuerySupport support) {
+        setResult(new ArrayList<T>());
+    }
+
+    final synchronized public void addOrSet(Object item) {
+
+    	assert(isPending());
+
+        ArrayList<T> value = (ArrayList<T>)getResult(); 
+        value.add((T)item);
+        
+    }
+    
+    @Override
+    final public Query getQuery() {
+    	
+        return new Query() {
+
+			@Override
+			public void recompute(ReadGraphImpl graph, Object provider, CacheEntry entry) {
+				
+				QueryProcessor qp = (QueryProcessor)provider;
+
+				final ReadGraphImpl parentGraph = ReadGraphImpl.forRecompute(entry, qp); 
+//                parentGraph.state.barrier.inc();
+
+				try {
+
+				    request.perform(parentGraph , new AsyncMultiProcedure<T>() {
+
+                        @Override
+                        public void execute(AsyncReadGraph graph, T result) {
+                            addOrSet(result);
+//                            parentGraph.state.barrier.dec();
+                        }
+                        
+                        public void finished(AsyncReadGraph graph) {
+                        	finish(graph);
+//                            parentGraph.state.barrier.dec();
+                        };
+        				
+        				@Override
+        				public void exception(AsyncReadGraph graph, Throwable t) {
+                            except(t);
+//                            parentGraph.state.barrier.dec();
+        	            }
+
+                    });
+
+//					parentGraph.waitAsync(request);
+
+				} catch (Throwable t) {
+                    except(t);
+//                    parentGraph.state.barrier.dec();
+                    if(DebugException.DEBUG) new DebugException(t).printStackTrace();
+                }
+				
+			}
+
+			@Override
+			public void removeEntry(QueryProcessor processor) {
+		    	processor.multiReadMap.remove(request);
+			}
+
+			@Override
+			public int type() {
+				return RequestFlags.INVALIDATE;
+			}
+			
+			@Override
+			public String toString() {
+				if(request == null) return "DISCARDED";
+				else return request.toString() + statusOrException;
+			}
+        	
+        };
+        
+    }
+
+    public void performFromCache(AsyncReadGraph graph, Object provider, Object procedure) {
+        
+        AsyncMultiProcedure<T> proc = (AsyncMultiProcedure<T>)procedure;
+
+        if(isExcepted()) {
+            
+            try {
+                proc.exception(graph, (Throwable)getResult());
+            } catch (Throwable t) {
+                t.printStackTrace();
+            }
+//            parentBarrier.dec();
+            
+        } else {
+            
+            final ArrayList<T> values = (ArrayList<T>)getResult();
+            for(T value : values) {
+                try {
+                    proc.execute(graph, value);
+                } catch (Throwable t) {
+                    t.printStackTrace();
+                }
+            }
+
+            try {
+                proc.finished(graph);
+            } catch (Throwable t) {
+                t.printStackTrace();
+            }
+//            parentBarrier.dec();
+
+        }
+        
+    }
+    
+	@Override
+	public void performFromCache(ReadGraphImpl graph, Object provider,
+			Object procedure) {
+		
+		final AsyncMultiProcedure<T> proc = (AsyncMultiProcedure<T>)procedure;
+
+        if(isExcepted()) {
+            
+            try {
+                proc.exception(graph, (Throwable)getResult());
+            } catch (Throwable t) {
+                t.printStackTrace();
+            }
+            
+        } else {
+            
+            final ArrayList<T> values = (ArrayList<T>)getResult();
+            for(T value : values) {
+                try {
+                    proc.execute(graph, value);
+                } catch (Throwable t) {
+                    t.printStackTrace();
+                }
+            }
+
+            try {
+                proc.finished(graph);
+            } catch (Throwable t) {
+                t.printStackTrace();
+            }
+
+        }
+		
+		
+		
+	}
+	
+	@Override
+	public String toString() {
+		if(request == null) return "DISCARDED";
+		else return request.toString() + statusOrException;
+	}
+
+}