Improve log compaction efficiency in AtomixWorkQueue.

Change-Id: I0fbe163e35b610f77d490364eecfad253df9c939
diff --git a/core/store/primitives/src/main/java/org/onosproject/store/primitives/resources/impl/AtomixWorkQueueCommands.java b/core/store/primitives/src/main/java/org/onosproject/store/primitives/resources/impl/AtomixWorkQueueCommands.java
index 2e77da9..977470d 100644
--- a/core/store/primitives/src/main/java/org/onosproject/store/primitives/resources/impl/AtomixWorkQueueCommands.java
+++ b/core/store/primitives/src/main/java/org/onosproject/store/primitives/resources/impl/AtomixWorkQueueCommands.java
@@ -74,6 +74,11 @@
         }
 
         @Override
+        public CompactionMode compaction() {
+            return CompactionMode.QUORUM;
+        }
+
+        @Override
         public String toString() {
             return MoreObjects.toStringHelper(getClass())
                     .add("items", items)
@@ -111,6 +116,11 @@
         }
 
         @Override
+        public CompactionMode compaction() {
+            return CompactionMode.QUORUM;
+        }
+
+        @Override
         public String toString() {
             return MoreObjects.toStringHelper(getClass())
                     .add("maxTasks", maxTasks)
@@ -150,6 +160,11 @@
         }
 
         @Override
+        public CompactionMode compaction() {
+            return CompactionMode.QUORUM;
+        }
+
+        @Override
         public String toString() {
             return MoreObjects.toStringHelper(getClass())
                     .toString();
@@ -168,6 +183,11 @@
         }
 
         @Override
+        public CompactionMode compaction() {
+            return CompactionMode.TOMBSTONE;
+        }
+
+        @Override
         public String toString() {
             return MoreObjects.toStringHelper(getClass())
                     .toString();
@@ -200,6 +220,11 @@
         }
 
         @Override
+        public CompactionMode compaction() {
+            return CompactionMode.TOMBSTONE;
+        }
+
+        @Override
         public String toString() {
             return MoreObjects.toStringHelper(getClass())
                     .add("taskIds", taskIds)
@@ -219,6 +244,11 @@
         }
 
         @Override
+        public CompactionMode compaction() {
+            return CompactionMode.TOMBSTONE;
+        }
+
+        @Override
         public String toString() {
             return MoreObjects.toStringHelper(getClass())
                     .toString();