diff --git a/core/store/primitives/src/main/java/org/onosproject/store/primitives/resources/impl/AtomixDistributedLockOperations.java b/core/store/primitives/src/main/java/org/onosproject/store/primitives/resources/impl/AtomixDistributedLockOperations.java
new file mode 100644
index 0000000..5cfbc84
--- /dev/null
+++ b/core/store/primitives/src/main/java/org/onosproject/store/primitives/resources/impl/AtomixDistributedLockOperations.java
@@ -0,0 +1,137 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.store.primitives.resources.impl;
+
+import io.atomix.protocols.raft.operation.OperationId;
+import io.atomix.protocols.raft.operation.OperationType;
+import org.onlab.util.KryoNamespace;
+import org.onosproject.store.serializers.KryoNamespaces;
+
+import static com.google.common.base.MoreObjects.toStringHelper;
+
+/**
+ * {@link org.onosproject.store.service.DistributedLock} operations.
+ * <p>
+ * WARNING: Do not refactor enum values. Only add to them.
+ * Changing values risk breaking the ability to backup/restore/upgrade clusters.
+ */
+public enum AtomixDistributedLockOperations implements OperationId {
+    LOCK(OperationType.COMMAND),
+    UNLOCK(OperationType.COMMAND);
+
+    private final OperationType type;
+
+    AtomixDistributedLockOperations(OperationType type) {
+        this.type = type;
+    }
+
+    @Override
+    public String id() {
+        return name();
+    }
+
+    @Override
+    public OperationType type() {
+        return type;
+    }
+
+    public static final KryoNamespace NAMESPACE = KryoNamespace.newBuilder()
+        .register(KryoNamespaces.BASIC)
+        .nextId(KryoNamespaces.BEGIN_USER_CUSTOM_ID)
+        .register(Lock.class)
+        .register(Unlock.class)
+        .build(AtomixDistributedLockOperations.class.getSimpleName());
+
+    /**
+     * Abstract lock operation.
+     */
+    public abstract static class LockOperation {
+        @Override
+        public String toString() {
+            return toStringHelper(this).toString();
+        }
+    }
+
+    /**
+     * Lock command.
+     */
+    public static class Lock extends LockOperation {
+        private final int id;
+        private final long timeout;
+
+        public Lock() {
+            this(0, 0);
+        }
+
+        public Lock(int id, long timeout) {
+            this.id = id;
+            this.timeout = timeout;
+        }
+
+        /**
+         * Returns the lock identifier.
+         *
+         * @return the lock identifier
+         */
+        public int id() {
+            return id;
+        }
+
+        /**
+         * Returns the lock attempt timeout.
+         *
+         * @return the lock attempt timeout
+         */
+        public long timeout() {
+            return timeout;
+        }
+
+        @Override
+        public String toString() {
+            return toStringHelper(this)
+                .add("id", id)
+                .add("timeout", timeout)
+                .toString();
+        }
+    }
+
+    /**
+     * Unlock command.
+     */
+    public static class Unlock extends LockOperation {
+        private final int id;
+
+        public Unlock(int id) {
+            this.id = id;
+        }
+
+        /**
+         * Returns the lock identifier.
+         *
+         * @return the lock identifier
+         */
+        public int id() {
+            return id;
+        }
+
+        @Override
+        public String toString() {
+            return toStringHelper(this)
+                .add("id", id)
+                .toString();
+        }
+    }
+}
\ No newline at end of file