| /** |
| * 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.sentry.core.common.transport; |
| |
| /** |
| * Client interface for Proxy Invocation handlers |
| * <p> |
| * Defines interface that Sentry client's should expose to the Invocation handlers like |
| * <code>RetryClientInvocationHandler</code> used to proxy the method invocation on sentry |
| * client instances . |
| * <p> |
| * All the sentry clients that need retrying and failover capabilities should implement |
| * this interface. |
| */ |
| public interface SentryServiceClient { |
| /** |
| * Connect to Sentry server. |
| * Either creates a new connection or reuses an existing one. |
| * @throws Exception on failure to acquire a transport towards server. |
| */ |
| void connect() throws Exception; |
| |
| /** |
| * Disconnect from the server. May close connection or return it to a |
| * pool for reuse. |
| */ |
| void disconnect(); |
| } |
