org.castor.cpa.persistence.sql.driver

Class MySQLFactory

java.lang.Object

org.castor.cpa.persistence.sql.driver.BaseFactory

org.castor.cpa.persistence.sql.driver.GenericFactory

org.castor.cpa.persistence.sql.driver.MySQLFactory

All Implemented Interfaces:

PersistenceFactory

public final class MySQLFactory
extends GenericFactory

PersistenceFactory for MySQL JDBC driver.

Version:

$Revision: 8377 $ $Date: 2006-02-21 16:05:42 -0700 (Tue, 21 Feb 2006) $

Author:

Leonardo Souza Mario Bueno

Field Summary

Fields

Modifier and Type	Field and Description
static String	FACTORY_NAME Internal name for this PersistenceFactory instance.

Constructor Summary

Constructors

Constructor and Description
MySQLFactory()

Method Summary

Methods

Modifier and Type	Method and Description
Class<?>	adjustSqlType(Class<?> sqlType) For CLOB type ResultSet.setClob() is not supported yet by mm.MySql JDBC driver.
String	getFactoryName() Returns the name of this factory.
String	getIdentitySelectString(String tableName, String columnName) Returns the database specific query string for retrieving last identity value.
QueryExpression	getQueryExpression() Returns a new empty query expression suitable for the underlying SQL engine.
boolean	isKeyGeneratorIdentitySupported() Does persistence factory support generation of unique keys with identity key generator?
boolean	isKeyGeneratorIdentityTypeSupported(int type) Does identity key generator support generation of unique keys for the given SQL type?

Methods inherited from class org.castor.cpa.persistence.sql.driver.GenericFactory

doubleQuoteName, getSequenceAfterSelectString, getSequenceBeforeSelectString, getSequenceNextValString, isKeyGeneratorSequenceSupported, isKeyGeneratorSequenceTypeSupported, quoteName

Methods inherited from class org.castor.cpa.persistence.sql.driver.BaseFactory

getCallQuery, getKeyGenerator, getPersistence

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

FACTORY_NAME

public static final String FACTORY_NAME

Internal name for this PersistenceFactory instance.

See Also:

Constant Field Values

Constructor Detail

MySQLFactory

public MySQLFactory()

Method Detail

getFactoryName

public String getFactoryName()

Description copied from interface: PersistenceFactory

Returns the name of this factory. A descriptive name that indicates the type of supported database server or SQL syntax.

Specified by:

getFactoryName in interface PersistenceFactory

Overrides:

getFactoryName in class GenericFactory

Returns:

The name of this factory

getQueryExpression

public QueryExpression getQueryExpression()

Description copied from interface: PersistenceFactory

Returns a new empty query expression suitable for the underlying SQL engine. The implementation will construct SQL query statements in the preferred syntax.

Specified by:

getQueryExpression in interface PersistenceFactory

Overrides:

getQueryExpression in class GenericFactory

Returns:

New empty query expression

adjustSqlType

public Class<?> adjustSqlType(Class<?> sqlType)

For CLOB type ResultSet.setClob() is not supported yet by mm.MySql JDBC driver. BLOB support is buggy in MM.MySQL 2.0.3: it handles NULL values in incorrect way.

Specified by:

adjustSqlType in interface PersistenceFactory

Overrides:

adjustSqlType in class BaseFactory

Parameters:

sqlType - The correspondent Java class for the SQL type in mapping.xml

Returns:

The correspondent Java class for the SQL type that should be used instead.

isKeyGeneratorIdentitySupported

public boolean isKeyGeneratorIdentitySupported()

Description copied from class: GenericFactory

Does persistence factory support generation of unique keys with identity key generator?

Specified by:

isKeyGeneratorIdentitySupported in interface PersistenceFactory

Overrides:

isKeyGeneratorIdentitySupported in class GenericFactory

Returns:

true if persistence factory is able to generate unique keys with identity key generator, false otherwise.

isKeyGeneratorIdentityTypeSupported

public boolean isKeyGeneratorIdentityTypeSupported(int type)

Description copied from class: GenericFactory

Does identity key generator support generation of unique keys for the given SQL type?

Specified by:

isKeyGeneratorIdentityTypeSupported in interface PersistenceFactory

Overrides:

isKeyGeneratorIdentityTypeSupported in class GenericFactory

Parameters:

type - SQL type to check for support by identity key generator.

Returns:

true if persistence factory is able to generate unique keys of given SQL type with identity key generator, false otherwise.

getIdentitySelectString

public String getIdentitySelectString(String tableName,
                             String columnName)

Description copied from class: GenericFactory

Returns the database specific query string for retrieving last identity value.

Specified by:

getIdentitySelectString in interface PersistenceFactory

Overrides:

getIdentitySelectString in class GenericFactory

Parameters:

tableName - Name of the table from which identity needs to be fetched.

columnName - Name of the column from which identity needs to be fetched.

Returns:

SQL Query string for fetching the identity value.