diff --git a/src/main/java/net/onrc/onos/ofcontroller/flowmanager/FlowEntityManager.java b/src/main/java/net/onrc/onos/ofcontroller/flowmanager/FlowEntityManager.java
new file mode 100644
index 0000000..38e694b
--- /dev/null
+++ b/src/main/java/net/onrc/onos/ofcontroller/flowmanager/FlowEntityManager.java
@@ -0,0 +1,29 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package net.onrc.onos.ofcontroller.flowmanager;
+
+import com.tinkerpop.blueprints.Direction;
+import java.util.Map;
+import net.onrc.onos.graph.DBOperation;
+
+/**
+ *
+ * @author nickkaranatsios
+ */
+public interface FlowEntityManager {
+    public void setPrimaryKey(String key);
+    public String getPrimaryKey();
+    public void hasMany(Class<?> cClass);
+    public void operationBegin(String opName);
+    public void operationEnd(String opName);
+    public void setProperty(String propertyName, Object value);
+    public Object getProperty(String propertyName);
+    public Map<String, Object> getProperties();
+    public FlowEntityManager append(Object entity);
+    public void addEdge(Object dst, Direction dir, String label);
+    public void removeEdge(Object src, Object dst, Direction dir, String label);
+    public void persist(DBOperation dbHandler);
+}
+