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MySQL JDBC Type 4 driver
/*
Copyright (c) 2002, 2017, Oracle and/or its affiliates. All rights reserved.
The MySQL Connector/J is licensed under the terms of the GPLv2
, like most MySQL Connectors.
There are special exceptions to the terms and conditions of the GPLv2 as it is applied to
this software, see the FOSS License Exception
.
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; version 2
of the License.
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., 51 Franklin St, Fifth
Floor, Boston, MA 02110-1301 USA
*/
package com.mysql.jdbc;
import java.sql.Types;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
/**
* MysqlDefs contains many values that are needed for communication with the MySQL server.
*/
public final class MysqlDefs {
static final int COM_BINLOG_DUMP = 18;
static final int COM_CHANGE_USER = 17;
static final int COM_CLOSE_STATEMENT = 25;
static final int COM_CONNECT_OUT = 20;
static final int COM_END = 29;
static final int COM_EXECUTE = 23;
static final int COM_FETCH = 28;
static final int COM_LONG_DATA = 24;
static final int COM_PREPARE = 22;
static final int COM_REGISTER_SLAVE = 21;
static final int COM_RESET_STMT = 26;
static final int COM_SET_OPTION = 27;
static final int COM_TABLE_DUMP = 19;
static final int CONNECT = 11;
static final int CREATE_DB = 5; // Not used; deprecated?
static final int DEBUG = 13;
static final int DELAYED_INSERT = 16;
static final int DROP_DB = 6; // Not used; deprecated?
static final int FIELD_LIST = 4; // Not used; deprecated in MySQL 5.7.11 and MySQL 8.0.0.
static final int FIELD_TYPE_BIT = 16;
public static final int FIELD_TYPE_BLOB = 252;
static final int FIELD_TYPE_DATE = 10;
static final int FIELD_TYPE_DATETIME = 12;
// Data Types
static final int FIELD_TYPE_DECIMAL = 0;
static final int FIELD_TYPE_DOUBLE = 5;
static final int FIELD_TYPE_ENUM = 247;
static final int FIELD_TYPE_FLOAT = 4;
static final int FIELD_TYPE_GEOMETRY = 255;
static final int FIELD_TYPE_INT24 = 9;
static final int FIELD_TYPE_LONG = 3;
static final int FIELD_TYPE_LONG_BLOB = 251;
static final int FIELD_TYPE_LONGLONG = 8;
static final int FIELD_TYPE_MEDIUM_BLOB = 250;
static final int FIELD_TYPE_NEW_DECIMAL = 246;
static final int FIELD_TYPE_NEWDATE = 14;
static final int FIELD_TYPE_NULL = 6;
static final int FIELD_TYPE_SET = 248;
static final int FIELD_TYPE_SHORT = 2;
static final int FIELD_TYPE_STRING = 254;
static final int FIELD_TYPE_TIME = 11;
static final int FIELD_TYPE_TIMESTAMP = 7;
static final int FIELD_TYPE_TINY = 1;
// Older data types
static final int FIELD_TYPE_TINY_BLOB = 249;
static final int FIELD_TYPE_VAR_STRING = 253;
static final int FIELD_TYPE_VARCHAR = 15;
// Newer data types
static final int FIELD_TYPE_YEAR = 13;
static final int FIELD_TYPE_JSON = 245;
static final int INIT_DB = 2;
static final long LENGTH_BLOB = 65535;
static final long LENGTH_LONGBLOB = 4294967295L;
static final long LENGTH_MEDIUMBLOB = 16777215;
static final long LENGTH_TINYBLOB = 255;
// Limitations
static final int MAX_ROWS = 50000000; // From the MySQL FAQ
/**
* Used to indicate that the server sent no field-level character set information, so the driver should use the connection-level character encoding instead.
*/
public static final int NO_CHARSET_INFO = -1;
static final byte OPEN_CURSOR_FLAG = 1;
static final int PING = 14;
static final int PROCESS_INFO = 10; // Not used; deprecated in MySQL 5.7.11 and MySQL 8.0.0.
static final int PROCESS_KILL = 12; // Not used; deprecated in MySQL 5.7.11 and MySQL 8.0.0.
static final int QUERY = 3;
static final int QUIT = 1;
static final int RELOAD = 7; // Not used; deprecated in MySQL 5.7.11 and MySQL 8.0.0.
static final int SHUTDOWN = 8; // Deprecated in MySQL 5.7.9 and MySQL 8.0.0.
//
// Constants defined from mysql
//
// DB Operations
static final int SLEEP = 0;
static final int STATISTICS = 9;
static final int TIME = 15;
/**
* Maps the given MySQL type to the correct JDBC type.
*/
static int mysqlToJavaType(int mysqlType) {
int jdbcType;
switch (mysqlType) {
case MysqlDefs.FIELD_TYPE_NEW_DECIMAL:
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:
case MysqlDefs.FIELD_TYPE_VARCHAR:
jdbcType = Types.VARCHAR;
break;
case MysqlDefs.FIELD_TYPE_JSON:
case MysqlDefs.FIELD_TYPE_STRING:
jdbcType = Types.CHAR;
break;
case MysqlDefs.FIELD_TYPE_GEOMETRY:
jdbcType = Types.BINARY;
break;
case MysqlDefs.FIELD_TYPE_BIT:
jdbcType = Types.BIT;
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("BIT")) {
return mysqlToJavaType(FIELD_TYPE_BIT);
} else if (mysqlType.equalsIgnoreCase("TINYINT")) {
return mysqlToJavaType(FIELD_TYPE_TINY);
} else if (mysqlType.equalsIgnoreCase("SMALLINT")) {
return mysqlToJavaType(FIELD_TYPE_SHORT);
} else if (mysqlType.equalsIgnoreCase("MEDIUMINT")) {
return mysqlToJavaType(FIELD_TYPE_INT24);
} else if (mysqlType.equalsIgnoreCase("INT") || mysqlType.equalsIgnoreCase("INTEGER")) {
return mysqlToJavaType(FIELD_TYPE_LONG);
} else if (mysqlType.equalsIgnoreCase("BIGINT")) {
return mysqlToJavaType(FIELD_TYPE_LONGLONG);
} else if (mysqlType.equalsIgnoreCase("INT24")) {
return mysqlToJavaType(FIELD_TYPE_INT24);
} else if (mysqlType.equalsIgnoreCase("REAL")) {
return mysqlToJavaType(FIELD_TYPE_DOUBLE);
} else if (mysqlType.equalsIgnoreCase("FLOAT")) {
return mysqlToJavaType(FIELD_TYPE_FLOAT);
} else if (mysqlType.equalsIgnoreCase("DECIMAL")) {
return mysqlToJavaType(FIELD_TYPE_DECIMAL);
} else if (mysqlType.equalsIgnoreCase("NUMERIC")) {
return mysqlToJavaType(FIELD_TYPE_DECIMAL);
} else if (mysqlType.equalsIgnoreCase("DOUBLE")) {
return mysqlToJavaType(FIELD_TYPE_DOUBLE);
} else if (mysqlType.equalsIgnoreCase("CHAR")) {
return mysqlToJavaType(FIELD_TYPE_STRING);
} else if (mysqlType.equalsIgnoreCase("VARCHAR")) {
return mysqlToJavaType(FIELD_TYPE_VAR_STRING);
} else if (mysqlType.equalsIgnoreCase("DATE")) {
return mysqlToJavaType(FIELD_TYPE_DATE);
} else if (mysqlType.equalsIgnoreCase("TIME")) {
return mysqlToJavaType(FIELD_TYPE_TIME);
} else if (mysqlType.equalsIgnoreCase("YEAR")) {
return mysqlToJavaType(FIELD_TYPE_YEAR);
} else if (mysqlType.equalsIgnoreCase("TIMESTAMP")) {
return mysqlToJavaType(FIELD_TYPE_TIMESTAMP);
} else if (mysqlType.equalsIgnoreCase("DATETIME")) {
return mysqlToJavaType(FIELD_TYPE_DATETIME);
} else if (mysqlType.equalsIgnoreCase("TINYBLOB")) {
return java.sql.Types.BINARY;
} else if (mysqlType.equalsIgnoreCase("BLOB")) {
return java.sql.Types.LONGVARBINARY;
} else if (mysqlType.equalsIgnoreCase("MEDIUMBLOB")) {
return java.sql.Types.LONGVARBINARY;
} 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 mysqlToJavaType(FIELD_TYPE_ENUM);
} else if (mysqlType.equalsIgnoreCase("SET")) {
return mysqlToJavaType(FIELD_TYPE_SET);
} else if (mysqlType.equalsIgnoreCase("GEOMETRY")) {
return mysqlToJavaType(FIELD_TYPE_GEOMETRY);
} else if (mysqlType.equalsIgnoreCase("BINARY")) {
return Types.BINARY; // no concrete type on the wire
} else if (mysqlType.equalsIgnoreCase("VARBINARY")) {
return Types.VARBINARY; // no concrete type on the wire
} else if (mysqlType.equalsIgnoreCase("BIT")) {
return mysqlToJavaType(FIELD_TYPE_BIT);
} else if (mysqlType.equalsIgnoreCase("JSON")) {
return mysqlToJavaType(FIELD_TYPE_JSON);
}
// Punt
return java.sql.Types.OTHER;
}
/**
* @param mysqlType
*/
public static String typeToName(int mysqlType) {
switch (mysqlType) {
case MysqlDefs.FIELD_TYPE_DECIMAL:
return "FIELD_TYPE_DECIMAL";
case MysqlDefs.FIELD_TYPE_TINY:
return "FIELD_TYPE_TINY";
case MysqlDefs.FIELD_TYPE_SHORT:
return "FIELD_TYPE_SHORT";
case MysqlDefs.FIELD_TYPE_LONG:
return "FIELD_TYPE_LONG";
case MysqlDefs.FIELD_TYPE_FLOAT:
return "FIELD_TYPE_FLOAT";
case MysqlDefs.FIELD_TYPE_DOUBLE:
return "FIELD_TYPE_DOUBLE";
case MysqlDefs.FIELD_TYPE_NULL:
return "FIELD_TYPE_NULL";
case MysqlDefs.FIELD_TYPE_TIMESTAMP:
return "FIELD_TYPE_TIMESTAMP";
case MysqlDefs.FIELD_TYPE_LONGLONG:
return "FIELD_TYPE_LONGLONG";
case MysqlDefs.FIELD_TYPE_INT24:
return "FIELD_TYPE_INT24";
case MysqlDefs.FIELD_TYPE_BIT:
return "FIELD_TYPE_BIT";
case MysqlDefs.FIELD_TYPE_DATE:
return "FIELD_TYPE_DATE";
case MysqlDefs.FIELD_TYPE_TIME:
return "FIELD_TYPE_TIME";
case MysqlDefs.FIELD_TYPE_DATETIME:
return "FIELD_TYPE_DATETIME";
case MysqlDefs.FIELD_TYPE_YEAR:
return "FIELD_TYPE_YEAR";
case MysqlDefs.FIELD_TYPE_NEWDATE:
return "FIELD_TYPE_NEWDATE";
case MysqlDefs.FIELD_TYPE_ENUM:
return "FIELD_TYPE_ENUM";
case MysqlDefs.FIELD_TYPE_SET:
return "FIELD_TYPE_SET";
case MysqlDefs.FIELD_TYPE_TINY_BLOB:
return "FIELD_TYPE_TINY_BLOB";
case MysqlDefs.FIELD_TYPE_MEDIUM_BLOB:
return "FIELD_TYPE_MEDIUM_BLOB";
case MysqlDefs.FIELD_TYPE_LONG_BLOB:
return "FIELD_TYPE_LONG_BLOB";
case MysqlDefs.FIELD_TYPE_BLOB:
return "FIELD_TYPE_BLOB";
case MysqlDefs.FIELD_TYPE_VAR_STRING:
return "FIELD_TYPE_VAR_STRING";
case MysqlDefs.FIELD_TYPE_STRING:
return "FIELD_TYPE_STRING";
case MysqlDefs.FIELD_TYPE_VARCHAR:
return "FIELD_TYPE_VARCHAR";
case MysqlDefs.FIELD_TYPE_GEOMETRY:
return "FIELD_TYPE_GEOMETRY";
case MysqlDefs.FIELD_TYPE_JSON:
return "FIELD_TYPE_JSON";
default:
return " Unknown MySQL Type # " + mysqlType;
}
}
private static Map mysqlToJdbcTypesMap = new HashMap();
static {
mysqlToJdbcTypesMap.put("BIT", Integer.valueOf(mysqlToJavaType(FIELD_TYPE_BIT)));
mysqlToJdbcTypesMap.put("TINYINT", Integer.valueOf(mysqlToJavaType(FIELD_TYPE_TINY)));
mysqlToJdbcTypesMap.put("SMALLINT", Integer.valueOf(mysqlToJavaType(FIELD_TYPE_SHORT)));
mysqlToJdbcTypesMap.put("MEDIUMINT", Integer.valueOf(mysqlToJavaType(FIELD_TYPE_INT24)));
mysqlToJdbcTypesMap.put("INT", Integer.valueOf(mysqlToJavaType(FIELD_TYPE_LONG)));
mysqlToJdbcTypesMap.put("INTEGER", Integer.valueOf(mysqlToJavaType(FIELD_TYPE_LONG)));
mysqlToJdbcTypesMap.put("BIGINT", Integer.valueOf(mysqlToJavaType(FIELD_TYPE_LONGLONG)));
mysqlToJdbcTypesMap.put("INT24", Integer.valueOf(mysqlToJavaType(FIELD_TYPE_INT24)));
mysqlToJdbcTypesMap.put("REAL", Integer.valueOf(mysqlToJavaType(FIELD_TYPE_DOUBLE)));
mysqlToJdbcTypesMap.put("FLOAT", Integer.valueOf(mysqlToJavaType(FIELD_TYPE_FLOAT)));
mysqlToJdbcTypesMap.put("DECIMAL", Integer.valueOf(mysqlToJavaType(FIELD_TYPE_DECIMAL)));
mysqlToJdbcTypesMap.put("NUMERIC", Integer.valueOf(mysqlToJavaType(FIELD_TYPE_DECIMAL)));
mysqlToJdbcTypesMap.put("DOUBLE", Integer.valueOf(mysqlToJavaType(FIELD_TYPE_DOUBLE)));
mysqlToJdbcTypesMap.put("CHAR", Integer.valueOf(mysqlToJavaType(FIELD_TYPE_STRING)));
mysqlToJdbcTypesMap.put("VARCHAR", Integer.valueOf(mysqlToJavaType(FIELD_TYPE_VAR_STRING)));
mysqlToJdbcTypesMap.put("DATE", Integer.valueOf(mysqlToJavaType(FIELD_TYPE_DATE)));
mysqlToJdbcTypesMap.put("TIME", Integer.valueOf(mysqlToJavaType(FIELD_TYPE_TIME)));
mysqlToJdbcTypesMap.put("YEAR", Integer.valueOf(mysqlToJavaType(FIELD_TYPE_YEAR)));
mysqlToJdbcTypesMap.put("TIMESTAMP", Integer.valueOf(mysqlToJavaType(FIELD_TYPE_TIMESTAMP)));
mysqlToJdbcTypesMap.put("DATETIME", Integer.valueOf(mysqlToJavaType(FIELD_TYPE_DATETIME)));
mysqlToJdbcTypesMap.put("TINYBLOB", Integer.valueOf(java.sql.Types.BINARY));
mysqlToJdbcTypesMap.put("BLOB", Integer.valueOf(java.sql.Types.LONGVARBINARY));
mysqlToJdbcTypesMap.put("MEDIUMBLOB", Integer.valueOf(java.sql.Types.LONGVARBINARY));
mysqlToJdbcTypesMap.put("LONGBLOB", Integer.valueOf(java.sql.Types.LONGVARBINARY));
mysqlToJdbcTypesMap.put("TINYTEXT", Integer.valueOf(java.sql.Types.VARCHAR));
mysqlToJdbcTypesMap.put("TEXT", Integer.valueOf(java.sql.Types.LONGVARCHAR));
mysqlToJdbcTypesMap.put("MEDIUMTEXT", Integer.valueOf(java.sql.Types.LONGVARCHAR));
mysqlToJdbcTypesMap.put("LONGTEXT", Integer.valueOf(java.sql.Types.LONGVARCHAR));
mysqlToJdbcTypesMap.put("ENUM", Integer.valueOf(mysqlToJavaType(FIELD_TYPE_ENUM)));
mysqlToJdbcTypesMap.put("SET", Integer.valueOf(mysqlToJavaType(FIELD_TYPE_SET)));
mysqlToJdbcTypesMap.put("GEOMETRY", Integer.valueOf(mysqlToJavaType(FIELD_TYPE_GEOMETRY)));
mysqlToJdbcTypesMap.put("JSON", Integer.valueOf(mysqlToJavaType(FIELD_TYPE_JSON)));
}
static final void appendJdbcTypeMappingQuery(StringBuilder buf, String mysqlTypeColumnName) {
buf.append("CASE ");
Map typesMap = new HashMap();
typesMap.putAll(mysqlToJdbcTypesMap);
typesMap.put("BINARY", Integer.valueOf(Types.BINARY));
typesMap.put("VARBINARY", Integer.valueOf(Types.VARBINARY));
Iterator mysqlTypes = typesMap.keySet().iterator();
while (mysqlTypes.hasNext()) {
String mysqlTypeName = mysqlTypes.next();
buf.append(" WHEN UPPER(");
buf.append(mysqlTypeColumnName);
buf.append(")='");
buf.append(mysqlTypeName);
buf.append("' THEN ");
buf.append(typesMap.get(mysqlTypeName));
if (mysqlTypeName.equalsIgnoreCase("DOUBLE") || mysqlTypeName.equalsIgnoreCase("FLOAT") || mysqlTypeName.equalsIgnoreCase("DECIMAL")
|| mysqlTypeName.equalsIgnoreCase("NUMERIC")) {
buf.append(" WHEN ");
buf.append(mysqlTypeColumnName);
buf.append("='");
buf.append(mysqlTypeName);
buf.append(" UNSIGNED' THEN ");
buf.append(typesMap.get(mysqlTypeName));
}
}
buf.append(" ELSE ");
buf.append(Types.OTHER);
buf.append(" END ");
}
}