📄 mysqldefs.java
字号:
/*
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;
}
}
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -