1 files changed, 45 insertions, 0 deletions
diff --git a/policy-core/src/main/java/org/openecomp/policy/drools/properties/Lockable.java b/policy-core/src/main/java/org/openecomp/policy/drools/properties/Lockable.java
new file mode 100644
index 00000000..fd8681c3
--- /dev/null
+++ b/policy-core/src/main/java/org/openecomp/policy/drools/properties/Lockable.java
@@ -0,0 +1,45 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * policy-core
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.policy.drools.properties;
+
+/**
+ * Marks a entity as able to lock and unlock.
+ */
+public interface Lockable {
+	
+	/**
+	 * locks this entity
+	 * @return true is the lock operation was successful, false otherwise
+	 */
+	public boolean lock();
+	
+	/**
+	 * unlocks this entity
+	 * @return true is the unlock operation was successful, false otherwise
+	 */
+	public boolean unlock();
+	
+	/**
+	 * is this entity locked?
+	 * @return true if the entity is in a locked state, false otherwise
+	 */
+	public boolean isLocked();
+}