/* * Copyright 2015-present 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(); }