/** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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 * <p/> * http://www.apache.org/licenses/LICENSE-2.0 * <p/> * 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.apache.drill.exec.coord.store; import org.apache.drill.exec.store.sys.PersistentStore; /** * Factory that is used to obtain a {@link TransientStore store} instance. */ public interface TransientStoreFactory extends AutoCloseable { /** * Returns a {@link TransientStore transient store} instance for the given configuration. * * Note that implementors have liberty to cache previous {@link PersistentStore store} instances. * * @param config store configuration * @param <V> store value type */ <V> TransientStore<V> getOrCreateStore(TransientStoreConfig<V> config); }