Copy policy-endpoints from drools-pdp to common

Issue-ID: POLICY-967
Change-Id: I374c155ee102c3e157c60d0a22d7191544abb76a
Signed-off-by: mmis <michael.morris@ericsson.com>

1 files changed, 48 insertions, 0 deletions

diff --git a/capabilities/src/main/java/org/onap/policy/common/capabilities/Lockable.java b/capabilities/src/main/java/org/onap/policy/common/capabilities/Lockable.java
new file mode 100644
index 00000000..6e5680d1
--- /dev/null
+++ b/capabilities/src/main/java/org/onap/policy/common/capabilities/Lockable.java
@@ -0,0 +1,48 @@
+/*-
+ * ============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.onap.policy.common.capabilities;
+
+/**
+ * Interface for classes that supports lock/unlock operations.
+ */
+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();
+}