MysqlDefs.java
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上传日期:2022-07-20
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源码类别:
数据库编程
开发平台:
Java
- /*
- Copyright (C) 2002 MySQL AB
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
- 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 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
- package com.mysql.jdbc;
- import java.sql.Types;
- /**
- * MysqlDefs contains many values that are needed for communication
- * with the MySQL server.
- *
- * @author Mark Matthews
- * @version $Id: MysqlDefs.java,v 1.6.2.6 2003/11/20 19:43:45 mmatthew Exp $
- */
- final class MysqlDefs {
- //
- // Constants defined from mysql
- //
- // DB Operations
- static final int SLEEP = 0;
- static final int QUIT = 1;
- static final int INIT_DB = 2;
- static final int QUERY = 3;
- static final int FIELD_LIST = 4;
- static final int CREATE_DB = 5;
- static final int DROP_DB = 6;
- static final int RELOAD = 7;
- static final int SHUTDOWN = 8;
- static final int STATISTICS = 9;
- static final int PROCESS_INFO = 10;
- static final int CONNECT = 11;
- static final int PROCESS_KILL = 12;
- static final int DEBUG = 13;
- static final int PING = 14;
- static final int TIME = 15;
- static final int DELAYED_INSERT = 16;
- static final int CHANGE_USER = 17;
- static final int COM_BINLOG_DUMP = 18;
- static final int COM_TABLE_DUMP = 19;
- static final int COM_CONNECT_OUT = 20;
- static final int COM_REGISTER_SLAVE = 21;
- static final int COM_PREPARE = 22;
- static final int COM_EXECUTE = 23;
- static final int COM_LONG_DATA = 24;
- // Data Types
- static final int FIELD_TYPE_DECIMAL = 0;
- static final int FIELD_TYPE_TINY = 1;
- static final int FIELD_TYPE_SHORT = 2;
- static final int FIELD_TYPE_LONG = 3;
- static final int FIELD_TYPE_FLOAT = 4;
- static final int FIELD_TYPE_DOUBLE = 5;
- static final int FIELD_TYPE_NULL = 6;
- static final int FIELD_TYPE_TIMESTAMP = 7;
- static final int FIELD_TYPE_LONGLONG = 8;
- static final int FIELD_TYPE_INT24 = 9;
- static final int FIELD_TYPE_DATE = 10;
- static final int FIELD_TYPE_TIME = 11;
- static final int FIELD_TYPE_DATETIME = 12;
- // Newer data types
- static final int FIELD_TYPE_YEAR = 13;
- static final int FIELD_TYPE_NEWDATE = 14;
- static final int FIELD_TYPE_ENUM = 247;
- static final int FIELD_TYPE_SET = 248;
- // Older data types
- static final int FIELD_TYPE_TINY_BLOB = 249;
- static final int FIELD_TYPE_MEDIUM_BLOB = 250;
- static final int FIELD_TYPE_LONG_BLOB = 251;
- static final int FIELD_TYPE_BLOB = 252;
- static final int FIELD_TYPE_VAR_STRING = 253;
- static final int FIELD_TYPE_STRING = 254;
- static final int ER_WARNING_NOT_COMPLETE_ROLLBACK = 1196;
- // Limitations
- static final int MAX_ROWS = 50000000; // From the MySQL FAQ
- static final String MIN_DOUBLE_VAL_STRING = "-1.7976931348623157E+308";
- static final String MAX_DOUBLE_VAL_STRING = "1.7976931348623157E+308";
- static final String MIN_FLOAT_VAL_STRING = "-3.402823466E+38";
- static final String MAX_FLOAT_VAL_STRING = "3.402823466E+38";
- static final String NAN_VAL_STRING = "0";
- /**
- * Maps the given MySQL type to the correct JDBC type.
- */
- static int mysqlToJavaType(int mysqlType) {
- int jdbcType;
- switch (mysqlType) {
- case MysqlDefs.FIELD_TYPE_DECIMAL:
- jdbcType = Types.DECIMAL;
- break;
- case MysqlDefs.FIELD_TYPE_TINY:
- jdbcType = Types.TINYINT;
- break;
- case MysqlDefs.FIELD_TYPE_SHORT:
- jdbcType = Types.SMALLINT;
- break;
- case MysqlDefs.FIELD_TYPE_LONG:
- jdbcType = Types.INTEGER;
- break;
- case MysqlDefs.FIELD_TYPE_FLOAT:
- jdbcType = Types.REAL;
- break;
- case MysqlDefs.FIELD_TYPE_DOUBLE:
- jdbcType = Types.DOUBLE;
- break;
- case MysqlDefs.FIELD_TYPE_NULL:
- jdbcType = Types.NULL;
- break;
- case MysqlDefs.FIELD_TYPE_TIMESTAMP:
- jdbcType = Types.TIMESTAMP;
- break;
- case MysqlDefs.FIELD_TYPE_LONGLONG:
- jdbcType = Types.BIGINT;
- break;
- case MysqlDefs.FIELD_TYPE_INT24:
- jdbcType = Types.INTEGER;
- break;
- case MysqlDefs.FIELD_TYPE_DATE:
- jdbcType = Types.DATE;
- break;
- case MysqlDefs.FIELD_TYPE_TIME:
- jdbcType = Types.TIME;
- break;
- case MysqlDefs.FIELD_TYPE_DATETIME:
- jdbcType = Types.TIMESTAMP;
- break;
- case MysqlDefs.FIELD_TYPE_YEAR:
- jdbcType = Types.DATE;
- break;
- case MysqlDefs.FIELD_TYPE_NEWDATE:
- jdbcType = Types.DATE;
- break;
- case MysqlDefs.FIELD_TYPE_ENUM:
- jdbcType = Types.CHAR;
- break;
- case MysqlDefs.FIELD_TYPE_SET:
- jdbcType = Types.CHAR;
- break;
- case MysqlDefs.FIELD_TYPE_TINY_BLOB:
- jdbcType = Types.VARBINARY;
- break;
- case MysqlDefs.FIELD_TYPE_MEDIUM_BLOB:
- jdbcType = Types.LONGVARBINARY;
- break;
- case MysqlDefs.FIELD_TYPE_LONG_BLOB:
- jdbcType = Types.LONGVARBINARY;
- break;
- case MysqlDefs.FIELD_TYPE_BLOB:
- jdbcType = Types.LONGVARBINARY;
- break;
- case MysqlDefs.FIELD_TYPE_VAR_STRING:
- jdbcType = Types.VARCHAR;
- break;
- case MysqlDefs.FIELD_TYPE_STRING:
- jdbcType = Types.CHAR;
- break;
- default:
- jdbcType = Types.VARCHAR;
- }
- return jdbcType;
- }
- /**
- * Maps the given MySQL type to the correct JDBC type.
- */
- static int mysqlToJavaType(String mysqlType) {
- if (mysqlType.equalsIgnoreCase("TINYINT")) {
- return java.sql.Types.TINYINT;
- } else if (mysqlType.equalsIgnoreCase("SMALLINT")) {
- return java.sql.Types.SMALLINT;
- } else if (mysqlType.equalsIgnoreCase("MEDIUMINT")) {
- return java.sql.Types.SMALLINT;
- } else if (mysqlType.equalsIgnoreCase("INT")) {
- return java.sql.Types.INTEGER;
- } else if (mysqlType.equalsIgnoreCase("INTEGER")) {
- return java.sql.Types.INTEGER;
- } else if (mysqlType.equalsIgnoreCase("BIGINT")) {
- return java.sql.Types.BIGINT;
- } else if (mysqlType.equalsIgnoreCase("INT24")) {
- return java.sql.Types.BIGINT;
- } else if (mysqlType.equalsIgnoreCase("REAL")) {
- return java.sql.Types.REAL;
- } else if (mysqlType.equalsIgnoreCase("FLOAT")) {
- return java.sql.Types.FLOAT;
- } else if (mysqlType.equalsIgnoreCase("DECIMAL")) {
- return java.sql.Types.DECIMAL;
- } else if (mysqlType.equalsIgnoreCase("NUMERIC")) {
- return java.sql.Types.NUMERIC;
- } else if (mysqlType.equalsIgnoreCase("DOUBLE")) {
- return java.sql.Types.DOUBLE;
- } else if (mysqlType.equalsIgnoreCase("CHAR")) {
- return java.sql.Types.CHAR;
- } else if (mysqlType.equalsIgnoreCase("VARCHAR")) {
- return java.sql.Types.VARCHAR;
- } else if (mysqlType.equalsIgnoreCase("DATE")) {
- return java.sql.Types.DATE;
- } else if (mysqlType.equalsIgnoreCase("TIME")) {
- return java.sql.Types.TIME;
- } else if (mysqlType.equalsIgnoreCase("YEAR")) {
- return java.sql.Types.DATE;
- } else if (mysqlType.equalsIgnoreCase("TIMESTAMP")) {
- return java.sql.Types.TIMESTAMP;
- } else if (mysqlType.equalsIgnoreCase("DATETIME")) {
- return java.sql.Types.TIMESTAMP;
- } else if (mysqlType.equalsIgnoreCase("TINYBLOB")) {
- return java.sql.Types.BINARY;
- } else if (mysqlType.equalsIgnoreCase("BLOB")) {
- return java.sql.Types.VARBINARY;
- } else if (mysqlType.equalsIgnoreCase("MEDIUMBLOB")) {
- return java.sql.Types.VARBINARY;
- } else if (mysqlType.equalsIgnoreCase("LONGBLOB")) {
- return java.sql.Types.LONGVARBINARY;
- } else if (mysqlType.equalsIgnoreCase("TINYTEXT")) {
- return java.sql.Types.VARCHAR;
- } else if (mysqlType.equalsIgnoreCase("TEXT")) {
- return java.sql.Types.LONGVARCHAR;
- } else if (mysqlType.equalsIgnoreCase("MEDIUMTEXT")) {
- return java.sql.Types.LONGVARCHAR;
- } else if (mysqlType.equalsIgnoreCase("LONGTEXT")) {
- return java.sql.Types.LONGVARCHAR;
- } else if (mysqlType.equalsIgnoreCase("ENUM")) {
- return java.sql.Types.CHAR;
- } else if (mysqlType.equalsIgnoreCase("SET")) {
- return java.sql.Types.CHAR;
- }
- // Punt
- return java.sql.Types.OTHER;
- }
- }