diff --git a/src/main/java/net/onrc/onos/ofcontroller/core/internal/SwitchStorageImpl.java b/src/main/java/net/onrc/onos/ofcontroller/core/internal/SwitchStorageImpl.java
index ea7fdf0..2e9ea60 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/core/internal/SwitchStorageImpl.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/core/internal/SwitchStorageImpl.java
@@ -5,7 +5,6 @@
 import net.onrc.onos.ofcontroller.core.ISwitchStorage;
 import net.onrc.onos.ofcontroller.core.INetMapTopologyObjects.IPortObject;
 import net.onrc.onos.ofcontroller.core.INetMapTopologyObjects.ISwitchObject;
-import net.onrc.onos.util.GraphDBConnection;
 import net.onrc.onos.util.GraphDBOperation;
 
 import org.openflow.protocol.OFPhysicalPort;
@@ -201,8 +200,7 @@
 
 	@Override
 	public void init(String conf) {
-		GraphDBConnection conn = GraphDBConnection.getInstance(conf);
-		op = new GraphDBOperation(conn);
+		op = new GraphDBOperation(conf);
 	}
 
 
diff --git a/src/main/java/net/onrc/onos/ofcontroller/core/internal/TopoSwitchServiceImpl.java b/src/main/java/net/onrc/onos/ofcontroller/core/internal/TopoSwitchServiceImpl.java
index e279422..c1659fb 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/core/internal/TopoSwitchServiceImpl.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/core/internal/TopoSwitchServiceImpl.java
@@ -3,7 +3,6 @@
 import net.onrc.onos.ofcontroller.core.INetMapTopologyObjects.IPortObject;
 import net.onrc.onos.ofcontroller.core.INetMapTopologyObjects.ISwitchObject;
 import net.onrc.onos.ofcontroller.core.INetMapTopologyService.ITopoSwitchService;
-import net.onrc.onos.util.GraphDBConnection;
 import net.onrc.onos.util.GraphDBOperation;
 
 import org.slf4j.Logger;
@@ -15,7 +14,7 @@
 	protected static Logger log = LoggerFactory.getLogger(TopoSwitchServiceImpl.class);
 
 	public TopoSwitchServiceImpl(String conf) {
-		op = new GraphDBOperation(GraphDBConnection.getInstance(conf));
+		op = new GraphDBOperation(conf);
 	}
 
 	public TopoSwitchServiceImpl() {
diff --git a/src/main/java/net/onrc/onos/ofcontroller/devicemanager/internal/DeviceStorageImpl.java b/src/main/java/net/onrc/onos/ofcontroller/devicemanager/internal/DeviceStorageImpl.java
index 98b4a88..0428779 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/devicemanager/internal/DeviceStorageImpl.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/devicemanager/internal/DeviceStorageImpl.java
@@ -15,8 +15,6 @@
 import net.onrc.onos.ofcontroller.core.INetMapTopologyObjects.IPortObject;
 import net.onrc.onos.ofcontroller.core.internal.SwitchStorageImpl;
 import net.onrc.onos.ofcontroller.devicemanager.IDeviceStorage;
-import net.onrc.onos.util.GraphDBConnection;
-import net.onrc.onos.util.GraphDBConnection.Transaction;
 import net.onrc.onos.util.GraphDBOperation;
 
 /**
@@ -25,7 +23,6 @@
  */
 public class DeviceStorageImpl implements IDeviceStorage {
 	
-	private GraphDBConnection conn;
 	private GraphDBOperation ope;
 	protected static Logger log = LoggerFactory.getLogger(SwitchStorageImpl.class);
 
@@ -36,10 +33,7 @@
 	@Override
 	public void init(String conf) {
 		try{
-			if((conn = GraphDBConnection.getInstance(conf)) != null)
-			{
-				ope = new GraphDBOperation(conn);
-			}
+			ope = new GraphDBOperation(conf);
 		} catch(Exception e) {
 			log.error(e.getMessage());
 		}
@@ -51,7 +45,7 @@
 	 */
 	@Override
 	public void close() {
-		conn.close();
+		ope.close();
 	}
 	
 	/***
diff --git a/src/main/java/net/onrc/onos/ofcontroller/devicemanager/web/TopoDevicesResource.java b/src/main/java/net/onrc/onos/ofcontroller/devicemanager/web/TopoDevicesResource.java
index 1cd6b90..97ecfcc 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/devicemanager/web/TopoDevicesResource.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/devicemanager/web/TopoDevicesResource.java
@@ -3,7 +3,6 @@
 import java.util.Iterator;
 
 import net.onrc.onos.ofcontroller.core.INetMapTopologyObjects.IDeviceObject;
-import net.onrc.onos.util.GraphDBConnection;
 import net.onrc.onos.util.GraphDBOperation;
 
 import org.restlet.resource.Get;
@@ -13,12 +12,8 @@
 	
 	@Get("json")
 	public Iterator<IDeviceObject> retrieve() {
-		
-		GraphDBConnection conn = GraphDBConnection.getInstance("");
-		GraphDBOperation op = new GraphDBOperation(conn);
+		GraphDBOperation op = new GraphDBOperation("");
 		
 		return op.getDevices().iterator();
-		
 	}
-	
 }
diff --git a/src/main/java/net/onrc/onos/ofcontroller/flowcache/FlowManager.java b/src/main/java/net/onrc/onos/ofcontroller/flowcache/FlowManager.java
index 125acf3..c464b89 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/flowcache/FlowManager.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/flowcache/FlowManager.java
@@ -49,7 +49,6 @@
 import net.onrc.onos.ofcontroller.util.IPv4Net;
 import net.onrc.onos.ofcontroller.util.Port;
 import net.onrc.onos.ofcontroller.util.SwitchPort;
-import net.onrc.onos.util.GraphDBConnection;
 import net.onrc.onos.util.GraphDBOperation;
 
 import org.openflow.protocol.OFFlowMod;
@@ -413,7 +412,7 @@
 
     @Override
     public void init(String conf) {
-    	op = new GraphDBOperation(GraphDBConnection.getInstance(conf));
+    	op = new GraphDBOperation(conf);
     }
 
     public void finalize() {
diff --git a/src/main/java/net/onrc/onos/ofcontroller/linkdiscovery/internal/TopoLinkServiceImpl.java b/src/main/java/net/onrc/onos/ofcontroller/linkdiscovery/internal/TopoLinkServiceImpl.java
index 1fe12c4..e134aeb 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/linkdiscovery/internal/TopoLinkServiceImpl.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/linkdiscovery/internal/TopoLinkServiceImpl.java
@@ -8,7 +8,6 @@
 import net.floodlightcontroller.routing.Link;
 import net.onrc.onos.ofcontroller.core.INetMapTopologyObjects.ISwitchObject;
 import net.onrc.onos.ofcontroller.core.INetMapTopologyService.ITopoLinkService;
-import net.onrc.onos.util.GraphDBConnection;
 import net.onrc.onos.util.GraphDBOperation;
 
 import org.slf4j.Logger;
@@ -34,8 +33,8 @@
 	@Override
 	public List<Link> getActiveLinks() {
 		// TODO Auto-generated method stub
-		op = new GraphDBOperation(GraphDBConnection.getInstance(""));
-		op.close(); //Commit to ensure we see latest data
+		op = new GraphDBOperation("");
+		op.commit(); //Commit to ensure we see latest data
 		Iterable<ISwitchObject> switches = op.getActiveSwitches();
 		List<Link> links = new ArrayList<Link>(); 
 		for (ISwitchObject sw : switches) {
diff --git a/src/main/java/net/onrc/onos/ofcontroller/onoslistener/OnosPublisher.java b/src/main/java/net/onrc/onos/ofcontroller/onoslistener/OnosPublisher.java
index 6a9d433..854b291 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/onoslistener/OnosPublisher.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/onoslistener/OnosPublisher.java
@@ -29,11 +29,9 @@
 import net.floodlightcontroller.threadpool.IThreadPoolService;
 import net.onrc.onos.ofcontroller.core.ISwitchStorage;
 import net.onrc.onos.ofcontroller.core.INetMapStorage.DM_OPERATION;
-import net.onrc.onos.ofcontroller.core.INetMapTopologyObjects.IPortObject;
 import net.onrc.onos.ofcontroller.core.INetMapTopologyObjects.ISwitchObject;
 import net.onrc.onos.ofcontroller.core.ISwitchStorage.SwitchState;
 import net.onrc.onos.ofcontroller.core.internal.SwitchStorageImpl;
-import net.onrc.onos.ofcontroller.core.internal.TopoSwitchServiceImpl;
 import net.onrc.onos.ofcontroller.devicemanager.IDeviceStorage;
 import net.onrc.onos.ofcontroller.devicemanager.internal.DeviceStorageImpl;
 import net.onrc.onos.ofcontroller.linkdiscovery.ILinkStorage;
@@ -253,7 +251,7 @@
 		// TODO Auto-generated method stub
 		Map<String, String> configMap = context.getConfigParams(this);
 		String conf = configMap.get(DBConfigFile);
-		op = new GraphDBOperation(GraphDBConnection.getInstance(conf));
+		op = new GraphDBOperation(conf);
 		
 		log = LoggerFactory.getLogger(OnosPublisher.class);
 		floodlightProvider =
diff --git a/src/main/java/net/onrc/onos/ofcontroller/routing/TopoRouteService.java b/src/main/java/net/onrc/onos/ofcontroller/routing/TopoRouteService.java
index a051d4c..0184915 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/routing/TopoRouteService.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/routing/TopoRouteService.java
@@ -23,8 +23,6 @@
 import net.onrc.onos.ofcontroller.util.FlowEntry;
 import net.onrc.onos.ofcontroller.util.Port;
 import net.onrc.onos.ofcontroller.util.SwitchPort;
-import net.onrc.onos.util.GraphDBConnection;
-import net.onrc.onos.util.GraphDBConnection.Transaction;
 import net.onrc.onos.util.GraphDBOperation;
 
 import org.openflow.util.HexString;
@@ -32,7 +30,6 @@
 import org.slf4j.LoggerFactory;
 
 import com.tinkerpop.blueprints.Direction;
-import com.tinkerpop.blueprints.TransactionalGraph.Conclusion;
 import com.tinkerpop.blueprints.Vertex;
 import com.tinkerpop.pipes.PipeFunction;
 import com.tinkerpop.pipes.branch.LoopPipe.LoopBundle;
@@ -135,7 +132,7 @@
     public void init(FloodlightModuleContext context)
 	throws FloodlightModuleException {
 	// TODO: Add the appropriate initialization
-    	op = new GraphDBOperation(GraphDBConnection.getInstance(""));
+    	op = new GraphDBOperation("");
     }
 
     @Override
diff --git a/src/main/java/net/onrc/onos/util/GraphDBOperation.java b/src/main/java/net/onrc/onos/util/GraphDBOperation.java
index 858a17e..da41dbd 100644
--- a/src/main/java/net/onrc/onos/util/GraphDBOperation.java
+++ b/src/main/java/net/onrc/onos/util/GraphDBOperation.java
@@ -24,6 +24,10 @@
 	public GraphDBOperation(GraphDBConnection dbConnection) {
 		this.conn = dbConnection;
 	}
+	
+	public GraphDBOperation(final String dbConfPath) {
+		this.conn = GraphDBConnection.getInstance(dbConfPath);
+	}
 
 	@Override
 	public ISwitchObject newSwitch(String dpid) {