org.springframework.jdbc.support

Class JdbcAccessor

java.lang.Object

org.springframework.jdbc.support.JdbcAccessor

All Implemented Interfaces:

InitializingBean

Direct Known Subclasses:

JdbcTemplate

public abstract class JdbcAccessor
extends Object
implements InitializingBean

Base class for JdbcTemplate and other JDBC-accessing DAO helpers, defining common properties such as DataSource and exception translator.

Not intended to be used directly. See JdbcTemplate.

Since:

28.11.2003

Author:

Juergen Hoeller

See Also:

JdbcTemplate

Field Summary

Fields

Modifier and Type	Field and Description
protected Log	logger Logger available to subclasses.

Constructor Summary

Constructors

Constructor and Description
JdbcAccessor()

Method Summary

Modifier and Type	Method and Description
void	afterPropertiesSet() Eagerly initialize the exception translator, if demanded, creating a default one for the specified DataSource if none set.
DataSource	getDataSource() Return the DataSource used by this template.
SQLExceptionTranslator	getExceptionTranslator() Return the exception translator for this instance.
boolean	isLazyInit() Return whether to lazily initialize the SQLExceptionTranslator for this accessor.
protected DataSource	obtainDataSource() Obtain the DataSource for actual use.
void	setDatabaseProductName(String dbName) Specify the database product name for the DataSource that this accessor uses.
void	setDataSource(DataSource dataSource) Set the JDBC DataSource to obtain connections from.
void	setExceptionTranslator(SQLExceptionTranslator exceptionTranslator) Set the exception translator for this instance.
void	setLazyInit(boolean lazyInit) Set whether to lazily initialize the SQLExceptionTranslator for this accessor, on first encounter of a SQLException.

Methods inherited from class java.lang.Object

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

Field Detail

logger

protected final Log logger

Logger available to subclasses.

Constructor Detail

JdbcAccessor

public JdbcAccessor()

Method Detail

setDataSource

public void setDataSource(@Nullable
                          DataSource dataSource)

Set the JDBC DataSource to obtain connections from.

getDataSource

@Nullable
public DataSource getDataSource()

Return the DataSource used by this template.

obtainDataSource

protected DataSource obtainDataSource()

Obtain the DataSource for actual use.

Returns:

the DataSource (never null)

Throws:

IllegalStateException - in case of no DataSource set

Since:

5.0

setDatabaseProductName

public void setDatabaseProductName(String dbName)

Specify the database product name for the DataSource that this accessor uses. This allows to initialize a SQLErrorCodeSQLExceptionTranslator without obtaining a Connection from the DataSource to get the meta-data.

Parameters:

dbName - the database product name that identifies the error codes entry

See Also:

SQLErrorCodeSQLExceptionTranslator.setDatabaseProductName(java.lang.String), DatabaseMetaData.getDatabaseProductName()

setExceptionTranslator

public void setExceptionTranslator(SQLExceptionTranslator exceptionTranslator)

Set the exception translator for this instance.

If no custom translator is provided, a default SQLErrorCodeSQLExceptionTranslator is used which examines the SQLException's vendor-specific error code.

See Also:

SQLErrorCodeSQLExceptionTranslator, SQLStateSQLExceptionTranslator

getExceptionTranslator

public SQLExceptionTranslator getExceptionTranslator()

Return the exception translator for this instance.

Creates a default SQLErrorCodeSQLExceptionTranslator for the specified DataSource if none set, or a SQLStateSQLExceptionTranslator in case of no DataSource.

See Also:

getDataSource()

setLazyInit

public void setLazyInit(boolean lazyInit)

Set whether to lazily initialize the SQLExceptionTranslator for this accessor, on first encounter of a SQLException. Default is "true"; can be switched to "false" for initialization on startup.

Early initialization just applies if afterPropertiesSet() is called.

See Also:

getExceptionTranslator(), afterPropertiesSet()

isLazyInit

public boolean isLazyInit()

Return whether to lazily initialize the SQLExceptionTranslator for this accessor.

See Also:

getExceptionTranslator()

afterPropertiesSet

public void afterPropertiesSet()

Eagerly initialize the exception translator, if demanded, creating a default one for the specified DataSource if none set.

Specified by:

afterPropertiesSet in interface InitializingBean