Spring Framework

org.springframework.dao.support
Class DaoSupport

java.lang.Object
  extended by org.springframework.dao.support.DaoSupport
All Implemented Interfaces:
InitializingBean
Direct Known Subclasses:
CciDaoSupport, HibernateDaoSupport, JdbcDaoSupport, JdoDaoSupport, JpaDaoSupport, SqlMapClientDaoSupport

public abstract class DaoSupport
extends java.lang.Object
implements InitializingBean

Generic base class for DAOs, defining template methods for DAO initialization.

Extended by Spring's specific DAO support classes, such as: JdbcDaoSupport, JdoDaoSupport, etc.

Since:
1.2.2
Author:
Juergen Hoeller
See Also:
JdbcDaoSupport, JdoDaoSupport

Field Summary
protected  org.apache.commons.logging.Log logger
          Logger available to subclasses
 
Constructor Summary
DaoSupport()
           
 
Method Summary
 void afterPropertiesSet()
          Invoked by a BeanFactory after it has set all bean properties supplied (and satisfied BeanFactoryAware and ApplicationContextAware).
protected abstract  void checkDaoConfig()
          Abstract subclasses must override this to check their configuration.
protected  void initDao()
          Concrete subclasses can override this for custom initialization behavior.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

logger

protected final org.apache.commons.logging.Log logger
Logger available to subclasses

Constructor Detail

DaoSupport

public DaoSupport()
Method Detail

afterPropertiesSet

public final void afterPropertiesSet()
                              throws java.lang.IllegalArgumentException,
                                     BeanInitializationException
Description copied from interface: InitializingBean
Invoked by a BeanFactory after it has set all bean properties supplied (and satisfied BeanFactoryAware and ApplicationContextAware).

This method allows the bean instance to perform initialization only possible when all bean properties have been set and to throw an exception in the event of misconfiguration.

Specified by:
afterPropertiesSet in interface InitializingBean
Throws:
java.lang.IllegalArgumentException
BeanInitializationException

checkDaoConfig

protected abstract void checkDaoConfig()
                                throws java.lang.IllegalArgumentException
Abstract subclasses must override this to check their configuration.

Implementors should be marked as final

Throws:
java.lang.IllegalArgumentException - in case of illegal configuration

initDao

protected void initDao()
                throws java.lang.Exception
Concrete subclasses can override this for custom initialization behavior. Gets called after population of this instance's bean properties.

Throws:
java.lang.Exception - if DAO initialization fails (will be rethrown as a BeanInitializationException)
See Also:
BeanInitializationException

Spring Framework