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Source Code for Connector/J 8.0.31 - Core API
Where to get the Java source code for Connector/J 8.0 Core API module?
✍: FYIcenter.com
Java source code files for Connector/J 8.0 Core API module are:
⏎ com/mysql/cj/interceptors/QueryInterceptor.java
/* * Copyright (c) 2009, 2020, Oracle and/or its affiliates. * * This program is free software; you can redistribute it and/or modify it under * the terms of the GNU General Public License, version 2.0, as published by the * Free Software Foundation. * * This program is also distributed with certain software (including but not * limited to OpenSSL) that is licensed under separate terms, as designated in a * particular file or component or in included license documentation. The * authors of MySQL hereby grant you an additional permission to link the * program and your derivative works with the separately licensed software that * they have included with MySQL. * * Without limiting anything contained in the foregoing, this file, which is * part of MySQL Connector/J, is also subject to the Universal FOSS Exception, * version 1.0, a copy of which can be found at * http://oss.oracle.com/licenses/universal-foss-exception. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU General Public License, version 2.0, * for more details. * * You should have received a copy of the GNU General Public License along with * this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ package com.mysql.cj.interceptors; import java.util.Properties; import java.util.function.Supplier; import com.mysql.cj.MysqlConnection; import com.mysql.cj.Query; import com.mysql.cj.log.Log; import com.mysql.cj.protocol.Message; import com.mysql.cj.protocol.Resultset; import com.mysql.cj.protocol.ServerSession; /** * Implement this interface to be placed "in between" query execution, so that you can influence it. * * QueryInterceptors are "chainable" when configured by the user, the results returned by the "current" interceptor will be passed on to the next on in the * chain, from left-to-right order, as specified by the user in the driver configuration property "queryInterceptors". */ public interface QueryInterceptor { /** * Called once per connection that wants to use the interceptor * * The properties are the same ones passed in in the URL or arguments to * Driver.connect() or DriverManager.getConnection(). * * @param conn * the connection for which this interceptor is being created * @param props * configuration values as passed to the connection. Note that * in order to support javax.sql.DataSources, configuration properties specific * to an interceptor <strong>must</strong> be passed via setURL() on the * DataSource. QueryInterceptor properties are not exposed via * accessor/mutator methods on DataSources. * @param log * logger * @return {@link QueryInterceptor} */ QueryInterceptor init(MysqlConnection conn, Properties props, Log log); /** * Called before the given query is going to be sent to the server for processing. * * Interceptors are free to return a result set (which must implement the * interface {@link Resultset}), and if so, * the server will not execute the query, and the given result set will be * returned to the application instead. * * This method will be called while the connection-level mutex is held, so * it will only be called from one thread at a time. * * @param sql * the Supplier for SQL representation of the query * @param interceptedQuery * the actual {@link Query} instance being intercepted * @param <T> * {@link Resultset} object * * @return a {@link Resultset} that should be returned to the application instead * of results that are created from actual execution of the intercepted * query. */ <T extends Resultset> T preProcess(Supplier<String> sql, Query interceptedQuery); /** * Called before the given query packet is going to be sent to the server for processing. * * Interceptors are free to return a PacketPayload, and if so, * the server will not execute the query, and the given PacketPayload will be * returned to the application instead. * * This method will be called while the connection-level mutex is held, so * it will only be called from one thread at a time. * * @param queryPacket * original {@link Message} * @param <M> * {@link Message} object * @return processed {@link Message} */ default <M extends Message> M preProcess(M queryPacket) { return null; } /** * Should the driver execute this interceptor only for the * "original" top-level query, and not put it in the execution * path for queries that may be executed from other interceptors? * * If an interceptor issues queries using the connection it was created for, * and does not return <code>true</code> for this method, it must ensure * that it does not cause infinite recursion. * * @return true if the driver should ensure that this interceptor is only * executed for the top-level "original" query. */ boolean executeTopLevelOnly(); /** * Called by the driver when this extension should release any resources * it is holding and cleanup internally before the connection is * closed. */ void destroy(); /** * Called after the given query has been sent to the server for processing. * * Interceptors are free to inspect the "original" result set, and if a * different result set is returned by the interceptor, it is used in place * of the "original" result set. * * This method will be called while the connection-level mutex is held, so * it will only be called from one thread at a time. * * @param sql * the Supplier for SQL representation of the query * @param interceptedQuery * the actual {@link Query} instance being intercepted * @param originalResultSet * a {@link Resultset} created from query execution * @param serverSession * {@link ServerSession} object after the query execution * @param <T> * {@link Resultset} object * * @return a {@link Resultset} that should be returned to the application instead * of results that are created from actual execution of the intercepted * query. */ <T extends Resultset> T postProcess(Supplier<String> sql, Query interceptedQuery, T originalResultSet, ServerSession serverSession); /** * Called after the given query packet has been sent to the server for processing. * * Interceptors are free to return either a different PacketPayload than the originalResponsePacket or null. * * This method will be called while the connection-level mutex is held, so * it will only be called from one thread at a time. * * @param queryPacket * query {@link Message} * @param originalResponsePacket * response {@link Message} * @param <M> * {@link Message} object * @return {@link Message} */ default <M extends Message> M postProcess(M queryPacket, M originalResponsePacket) { return null; } }
⏎ com/mysql/cj/interceptors/QueryInterceptor.java
Or download all of them as a single archive file:
File name: mysql-connector-java-core-api-8.0.31.zip File size: 309381 bytes Release date: 2022-09-03 Download
⇒ Source Code for Connector/J 8.0.31 - Core Impl
⇐ What Is mysql-connector-j-8.0.31.jar?
2023-05-31, 6167👍, 0💬
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