1 files changed, 40 insertions, 0 deletions
diff --git a/framework/src/onos/core/api/src/main/java/org/onosproject/persistence/PersistenceService.java b/framework/src/onos/core/api/src/main/java/org/onosproject/persistence/PersistenceService.java
new file mode 100644
index 00000000..09065dec
--- /dev/null
+++ b/framework/src/onos/core/api/src/main/java/org/onosproject/persistence/PersistenceService.java
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * 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.persistence;
+
+/**
+ * Service that allows for the creation of local disk backed map for instance specific values that persist across
+ * restarts. Empty maps and sets are deleted on shutdown.
+ */
+public interface PersistenceService {
+    /**
+     * A builder for the creation of local persistent maps backed by disk.
+     *
+     * @param <K> the type of keys in this map
+     * @param <V> the type of values in this map
+     * @return a persistent map builder
+     */
+    <K, V> PersistentMapBuilder<K, V> persistentMapBuilder();
+
+    /**
+     * A builder for the creation of local persistent sets backed by disk.
+     *
+     * @param <E> the type of the elements
+     * @return a persistent set builder
+     */
+    <E> PersistentSetBuilder<E> persistentSetBuilder();
+}
+\ No newline at end of file