* Renamed method FlowEntry.getFlowId() to FlowEntry.flowId() for consistency
  with the rest of the methods in that class.

* Added new method FlowEntry.isValidFlowEntryId(), and the corresponding
  unit test.

* Minor fix inside FlowEntryTest.testToString(): add the optional string
  identifying each assertEquals() check.
diff --git a/src/main/java/net/onrc/onos/ofcontroller/util/FlowEntry.java b/src/main/java/net/onrc/onos/ofcontroller/util/FlowEntry.java
index 762d272..9862040 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/util/FlowEntry.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/util/FlowEntry.java
@@ -119,7 +119,7 @@
      * @return the Flow ID.
      */
     @JsonIgnore
-    public FlowId getFlowId() { return flowId; }
+    public FlowId flowId() { return flowId; }
 
     /**
      * Set the Flow ID.
@@ -149,6 +149,17 @@
     }
 
     /**
+     * Test whether the Flow Entry ID is valid.
+     *
+     * @return true if the Flow Entry ID is valid, otherwise false.
+     */
+    public boolean isValidFlowEntryId() {
+	if (this.flowEntryId == null)
+	    return false;
+	return (this.flowEntryId.value() != 0);
+    }
+
+    /**
      * Get the Flow Entry Match.
      *
      * @return the Flow Entry Match.
diff --git a/src/test/java/net/onrc/onos/ofcontroller/util/FlowEntryTest.java b/src/test/java/net/onrc/onos/ofcontroller/util/FlowEntryTest.java
index 1d193c4..531fdb3 100644
--- a/src/test/java/net/onrc/onos/ofcontroller/util/FlowEntryTest.java
+++ b/src/test/java/net/onrc/onos/ofcontroller/util/FlowEntryTest.java
@@ -144,8 +144,8 @@
 	}
 
 	@Test
-	public void testGetFlowId(){
-		assertEquals("flowId", flowId, entry.getFlowId() );
+	public void testFlowId(){
+		assertEquals("flowId", flowId, entry.flowId() );
 	}
 
 	@Test
@@ -154,6 +154,23 @@
 	}
 
 	@Test
+	public void testIsValidFlowEntryId(){
+		FlowEntry e = new FlowEntry();
+
+		// Test a Flow Entry with empty Flow Entry ID
+		assertEquals("isValidFlowEntryId", false, e.isValidFlowEntryId() );
+
+		// Test a Flow Entry with invalid Flow Entry ID
+		e.setFlowEntryId(new FlowEntryId());
+		assertEquals("isValidFlowEntryId", false, e.isValidFlowEntryId() );
+
+		// Test a Flow Entry with valid Flow Entry ID
+		e.setFlowEntryId(new FlowEntryId(0x1));
+		assertEquals("isValidFlowEntryId", true, e.isValidFlowEntryId() );
+		assertEquals("isValidFlowEntryId", true, entry.isValidFlowEntryId() );
+	}
+
+	@Test
 	public void testFlowEntryMatch(){
 		assertEquals("flowEntryMatch", match, entry.flowEntryMatch() );
 	}
@@ -203,8 +220,8 @@
 	@Test
 	public void testToString(){
 		FlowEntry def = new FlowEntry();
-		assertEquals( def.toString(), "[ flowEntryActions=[] flowEntryUserState=FE_USER_UNKNOWN flowEntrySwitchState=FE_SWITCH_UNKNOWN]" );
-		assertEquals( entry.toString(), "[flowEntryId=0x5678 flowEntryMatch=[inPort=1 srcMac=01:02:03:04:05:06 dstMac=06:05:04:03:02:01 ethernetFrameType=2 vlanId=3 vlanPriority=4 srcIPv4Net=127.0.0.1/32 dstIPv4Net=127.0.0.2/32 ipProto=5 ipToS=6 srcTcpUdpPort=7 dstTcpUdpPort=8] flowEntryActions=[[type=ACTION_OUTPUT action=[port=9 maxLen=0]];[type=ACTION_OUTPUT action=[port=-3 maxLen=0]];[type=ACTION_SET_VLAN_VID action=[vlanId=3]];[type=ACTION_SET_VLAN_PCP action=[vlanPriority=4]];[type=ACTION_STRIP_VLAN action=[stripVlan=true]];[type=ACTION_SET_DL_SRC action=[addr=01:02:03:04:05:06]];[type=ACTION_SET_DL_DST action=[addr=06:05:04:03:02:01]];[type=ACTION_SET_NW_SRC action=[addr=127.0.0.3]];[type=ACTION_SET_NW_DST action=[addr=127.0.0.4]];[type=ACTION_SET_NW_TOS action=[ipToS=6]];[type=ACTION_SET_TP_SRC action=[port=7]];[type=ACTION_SET_TP_DST action=[port=8]];[type=ACTION_ENQUEUE action=[port=10 queueId=11]];] dpid=00:00:00:00:00:00:ca:fe inPort=1 outPort=9 flowEntryUserState=FE_USER_ADD flowEntrySwitchState=FE_SWITCH_UPDATED flowEntryErrorState=[type=12 code=13]]" );
+		assertEquals("toString", def.toString(), "[ flowEntryActions=[] flowEntryUserState=FE_USER_UNKNOWN flowEntrySwitchState=FE_SWITCH_UNKNOWN]" );
+		assertEquals("toString", entry.toString(), "[flowEntryId=0x5678 flowEntryMatch=[inPort=1 srcMac=01:02:03:04:05:06 dstMac=06:05:04:03:02:01 ethernetFrameType=2 vlanId=3 vlanPriority=4 srcIPv4Net=127.0.0.1/32 dstIPv4Net=127.0.0.2/32 ipProto=5 ipToS=6 srcTcpUdpPort=7 dstTcpUdpPort=8] flowEntryActions=[[type=ACTION_OUTPUT action=[port=9 maxLen=0]];[type=ACTION_OUTPUT action=[port=-3 maxLen=0]];[type=ACTION_SET_VLAN_VID action=[vlanId=3]];[type=ACTION_SET_VLAN_PCP action=[vlanPriority=4]];[type=ACTION_STRIP_VLAN action=[stripVlan=true]];[type=ACTION_SET_DL_SRC action=[addr=01:02:03:04:05:06]];[type=ACTION_SET_DL_DST action=[addr=06:05:04:03:02:01]];[type=ACTION_SET_NW_SRC action=[addr=127.0.0.3]];[type=ACTION_SET_NW_DST action=[addr=127.0.0.4]];[type=ACTION_SET_NW_TOS action=[ipToS=6]];[type=ACTION_SET_TP_SRC action=[port=7]];[type=ACTION_SET_TP_DST action=[port=8]];[type=ACTION_ENQUEUE action=[port=10 queueId=11]];] dpid=00:00:00:00:00:00:ca:fe inPort=1 outPort=9 flowEntryUserState=FE_USER_ADD flowEntrySwitchState=FE_SWITCH_UPDATED flowEntryErrorState=[type=12 code=13]]" );
 	}
 
 }