Package org.apache.torque.adapter
Class MysqlAdapter
- java.lang.Object
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- org.apache.torque.adapter.AbstractAdapter
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- org.apache.torque.adapter.MysqlAdapter
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- All Implemented Interfaces:
Serializable
,Adapter
public class MysqlAdapter extends AbstractAdapter
This is used in order to connect to a MySQL database using the MM drivers. Simply comment the above and uncomment this code below and fill in the appropriate values for DB_NAME, DB_HOST, DB_USER, DB_PASS."jdbc:mysql://" + DB_HOST + "/" + DB_NAME + "?user=" + DB_USER + "&password=" + DB_PASS;
- Version:
- $Id: MysqlAdapter.java 1850965 2019-01-10 17:21:29Z painter $
- Author:
- Jon S. Stevens, Brett McLaughlin, Daniel Rall
- See Also:
- Serialized Form
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Field Summary
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Fields inherited from interface org.apache.torque.adapter.Adapter
ADAPTER_KEY, AUTODETECT_ADAPTER, DRIVER_KEY
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Constructor Summary
Constructors Modifier Constructor Description protected
MysqlAdapter()
Empty protected constructor.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
generateLimits(Query query, long offset, int limit)
Generate a LIMIT offset, limit clause if offset > 0 or an LIMIT limit clause if limit is > 0 and offset is 0.String
getIDMethodSQL(Object obj)
Returns the SQL to get the database key of the last row inserted, which in this case isSELECT LAST_INSERT_ID()
.IDMethod
getIDMethodType()
Returns the constant from theIDMethod
interface denoting which type of primary key generation method this type of RDBMS uses.String
ignoreCase(String in)
This method is used to ignore case.void
lockTable(Connection con, String table)
Locks the specified table.String
toUpperCase(String in)
This method is used to ignore case.void
unlockTable(Connection con, String table)
Unlocks the specified table.-
Methods inherited from class org.apache.torque.adapter.AbstractAdapter
escapeText, getStringDelimiter, getUpdateLockClause, ignoreCaseInOrderBy, setCapabilities, supportsNativeLimit, supportsNativeOffset, useEscapeClauseForLike, useGetGeneratedKeys, useIlike, useMinusForExcept
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Method Detail
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toUpperCase
public String toUpperCase(String in)
This method is used to ignore case.- Specified by:
toUpperCase
in interfaceAdapter
- Specified by:
toUpperCase
in classAbstractAdapter
- Parameters:
in
- The string to transform to upper case.- Returns:
- The upper case string.
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ignoreCase
public String ignoreCase(String in)
This method is used to ignore case.- Specified by:
ignoreCase
in interfaceAdapter
- Specified by:
ignoreCase
in classAbstractAdapter
- Parameters:
in
- The string whose case to ignore.- Returns:
- The string in a case that can be ignored.
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getIDMethodType
public IDMethod getIDMethodType()
Description copied from class:AbstractAdapter
Returns the constant from theIDMethod
interface denoting which type of primary key generation method this type of RDBMS uses.- Specified by:
getIDMethodType
in interfaceAdapter
- Specified by:
getIDMethodType
in classAbstractAdapter
- Returns:
- IDMethod constant
- See Also:
Adapter.getIDMethodType()
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getIDMethodSQL
public String getIDMethodSQL(Object obj)
Returns the SQL to get the database key of the last row inserted, which in this case isSELECT LAST_INSERT_ID()
.- Specified by:
getIDMethodSQL
in interfaceAdapter
- Specified by:
getIDMethodSQL
in classAbstractAdapter
- Parameters:
obj
- Information used for key generation.- Returns:
- The most recently inserted database key.
- See Also:
Adapter.getIDMethodSQL(Object obj)
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lockTable
public void lockTable(Connection con, String table) throws SQLException
Locks the specified table.- Specified by:
lockTable
in interfaceAdapter
- Specified by:
lockTable
in classAbstractAdapter
- Parameters:
con
- The JDBC connection to use.table
- The name of the table to lock.- Throws:
SQLException
- No Statement could be created or executed.
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unlockTable
public void unlockTable(Connection con, String table) throws SQLException
Unlocks the specified table.- Specified by:
unlockTable
in interfaceAdapter
- Specified by:
unlockTable
in classAbstractAdapter
- Parameters:
con
- The JDBC connection to use.table
- The name of the table to unlock.- Throws:
SQLException
- No Statement could be created or executed.
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generateLimits
public void generateLimits(Query query, long offset, int limit)
Generate a LIMIT offset, limit clause if offset > 0 or an LIMIT limit clause if limit is > 0 and offset is 0.- Specified by:
generateLimits
in interfaceAdapter
- Overrides:
generateLimits
in classAbstractAdapter
- Parameters:
query
- The query to modifyoffset
- the offset Valuelimit
- the limit Value
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