Add distributed lock primitive
Change-Id: I60f4581d5acb5fc9b9a21d4191874bb56348af58
diff --git a/core/store/primitives/src/main/java/org/onosproject/store/primitives/resources/impl/LockEvent.java b/core/store/primitives/src/main/java/org/onosproject/store/primitives/resources/impl/LockEvent.java
new file mode 100644
index 0000000..cddb41f
--- /dev/null
+++ b/core/store/primitives/src/main/java/org/onosproject/store/primitives/resources/impl/LockEvent.java
@@ -0,0 +1,61 @@
+/*
+ * 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 static com.google.common.base.MoreObjects.toStringHelper;
+
+/**
+ * Locked event.
+ */
+public class LockEvent {
+ private final int id;
+ private final long version;
+
+ public LockEvent() {
+ this(0, 0);
+ }
+
+ public LockEvent(int id, long version) {
+ this.id = id;
+ this.version = version;
+ }
+
+ /**
+ * Returns the lock ID.
+ *
+ * @return The lock ID.
+ */
+ public int id() {
+ return id;
+ }
+
+ /**
+ * Returns the lock version.
+ *
+ * @return The lock version.
+ */
+ public long version() {
+ return version;
+ }
+
+ @Override
+ public String toString() {
+ return toStringHelper(this)
+ .add("id", id)
+ .add("version", version)
+ .toString();
+ }
+}