java.lang.Object
- org.springframework.dao.support.DaoSupport
- - org.springframework.jdbc.core.support.JdbcDaoSupport

All Implemented Interfaces:
InitializingBean
Direct Known Subclasses:
NamedParameterJdbcDaoSupport
```
public abstract class JdbcDaoSupport
extends DaoSupport
```
Convenient super class for JDBC-based data access objects.
Requires a DataSource to be set, providing a JdbcTemplate based on it to subclasses through the getJdbcTemplate() method.
This base class is mainly intended for JdbcTemplate usage but can also be used when working with a Connection directly or when using org.springframework.jdbc.object operation objects.
Since:
28.07.2003
Author:
Juergen Hoeller
See Also:
setDataSource(javax.sql.DataSource), getJdbcTemplate(), JdbcTemplate

Field Summary
- Fields inherited from class org.springframework.dao.support.DaoSupport
  logger

Constructor Summary
Constructors
Constructor Description
JdbcDaoSupport()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected void`	`checkDaoConfig()`	Abstract subclasses must override this to check their configuration.
`protected JdbcTemplate`	`createJdbcTemplate(DataSource dataSource)`	Create a JdbcTemplate for the given DataSource.
`protected Connection`	`getConnection()`	Get a JDBC Connection, either from the current transaction or a new one.
`DataSource`	`getDataSource()`	Return the JDBC DataSource used by this DAO.
`protected SQLExceptionTranslator`	`getExceptionTranslator()`	Return the SQLExceptionTranslator of this DAO's JdbcTemplate, for translating SQLExceptions in custom JDBC access code.
`JdbcTemplate`	`getJdbcTemplate()`	Return the JdbcTemplate for this DAO, pre-initialized with the DataSource or set explicitly.
`protected void`	`initTemplateConfig()`	Initialize the template-based configuration of this DAO.
`protected void`	`releaseConnection(Connection con)`	Close the given JDBC Connection, created via this DAO's DataSource, if it isn't bound to the thread.
`void`	`setDataSource(DataSource dataSource)`	Set the JDBC DataSource to be used by this DAO.
`void`	`setJdbcTemplate(JdbcTemplate jdbcTemplate)`	Set the JdbcTemplate for this DAO explicitly, as an alternative to specifying a DataSource.

Methods inherited from class org.springframework.dao.support.DaoSupport
afterPropertiesSet, initDao

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - JdbcDaoSupport
```
public JdbcDaoSupport()
```
- Method Detail
  - setDataSource
```
public final void setDataSource(DataSource dataSource)
```
    Set the JDBC DataSource to be used by this DAO.
  - createJdbcTemplate
```
protected JdbcTemplate createJdbcTemplate(DataSource dataSource)
```
    Create a JdbcTemplate for the given DataSource. Only invoked if populating the DAO with a DataSource reference!
    Can be overridden in subclasses to provide a JdbcTemplate instance with different configuration, or a custom JdbcTemplate subclass.
    Parameters:
    dataSource - the JDBC DataSource to create a JdbcTemplate for
    Returns:
    the new JdbcTemplate instance
    See Also:
    setDataSource(javax.sql.DataSource)
  - getDataSource
```
@Nullable
public final DataSource getDataSource()
```
    Return the JDBC DataSource used by this DAO.
  - setJdbcTemplate
```
public final void setJdbcTemplate(@Nullable
                                  JdbcTemplate jdbcTemplate)
```
    Set the JdbcTemplate for this DAO explicitly, as an alternative to specifying a DataSource.
  - getJdbcTemplate
```
@Nullable
public final JdbcTemplate getJdbcTemplate()
```
    Return the JdbcTemplate for this DAO, pre-initialized with the DataSource or set explicitly.
  - initTemplateConfig
```
protected void initTemplateConfig()
```
    Initialize the template-based configuration of this DAO. Called after a new JdbcTemplate has been set, either directly or through a DataSource.
    This implementation is empty. Subclasses may override this to configure further objects based on the JdbcTemplate.
    See Also:
    getJdbcTemplate()
  - checkDaoConfig
```
protected void checkDaoConfig()
```
    Description copied from class: DaoSupport
    Abstract subclasses must override this to check their configuration.
    Implementors should be marked as final if concrete subclasses are not supposed to override this template method themselves.
    Specified by:
    checkDaoConfig in class DaoSupport
  - getExceptionTranslator
```
protected final SQLExceptionTranslator getExceptionTranslator()
```
    Return the SQLExceptionTranslator of this DAO's JdbcTemplate, for translating SQLExceptions in custom JDBC access code.
    See Also:
    JdbcAccessor.getExceptionTranslator()
  - getConnection
```
protected final Connection getConnection()
                                  throws CannotGetJdbcConnectionException
```
    Get a JDBC Connection, either from the current transaction or a new one.
    Returns:
    the JDBC Connection
    Throws:
    CannotGetJdbcConnectionException - if the attempt to get a Connection failed
    See Also:
    DataSourceUtils.getConnection(javax.sql.DataSource)
  - releaseConnection
```
protected final void releaseConnection(Connection con)
```
    Close the given JDBC Connection, created via this DAO's DataSource, if it isn't bound to the thread.
    Parameters:
    con - the Connection to close
    See Also:
    DataSourceUtils.releaseConnection(java.sql.Connection, javax.sql.DataSource)

Class JdbcDaoSupport

Field Summary

Fields inherited from class org.springframework.dao.support.DaoSupport

Constructor Summary

Method Summary

Methods inherited from class org.springframework.dao.support.DaoSupport

Methods inherited from class java.lang.Object

Constructor Detail

JdbcDaoSupport

Method Detail

setDataSource

createJdbcTemplate

getDataSource

setJdbcTemplate

getJdbcTemplate

initTemplateConfig

checkDaoConfig

getExceptionTranslator

getConnection

releaseConnection