Package org.springframework.dao.support
Class ChainedPersistenceExceptionTranslator
- java.lang.Object
- org.springframework.dao.support.ChainedPersistenceExceptionTranslator
- All Implemented Interfaces:
PersistenceExceptionTranslator
public class ChainedPersistenceExceptionTranslator extends Object implements PersistenceExceptionTranslator
Implementation ofPersistenceExceptionTranslatorthat supports chaining, allowing the addition of PersistenceExceptionTranslator instances in order. Returnsnon-nullon the first (if any) match.- Since:
- 2.0
- Author:
- Rod Johnson, Juergen Hoeller
Constructor Summary
Constructors Constructor Description ChainedPersistenceExceptionTranslator()
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description voidaddDelegate(PersistenceExceptionTranslator pet)Add a PersistenceExceptionTranslator to the chained delegate list.PersistenceExceptionTranslator[]getDelegates()Return all registered PersistenceExceptionTranslator delegates (as array).DataAccessExceptiontranslateExceptionIfPossible(RuntimeException ex)Translate the given runtime exception thrown by a persistence framework to a corresponding exception from Spring's genericDataAccessExceptionhierarchy, if possible.
Constructor Detail
ChainedPersistenceExceptionTranslator
public ChainedPersistenceExceptionTranslator()
Method Detail
addDelegate
public final void addDelegate(PersistenceExceptionTranslator pet)
Add a PersistenceExceptionTranslator to the chained delegate list.
getDelegates
public final PersistenceExceptionTranslator[] getDelegates()
Return all registered PersistenceExceptionTranslator delegates (as array).
translateExceptionIfPossible
@Nullable public DataAccessException translateExceptionIfPossible(RuntimeException ex)
Description copied from interface:PersistenceExceptionTranslatorTranslate the given runtime exception thrown by a persistence framework to a corresponding exception from Spring's genericDataAccessExceptionhierarchy, if possible.Do not translate exceptions that are not understood by this translator: for example, if coming from another persistence framework, or resulting from user code or otherwise unrelated to persistence.
Of particular importance is the correct translation to DataIntegrityViolationException, for example on constraint violation. Implementations may use Spring JDBC's sophisticated exception translation to provide further information in the event of SQLException as a root cause.
- Specified by:
translateExceptionIfPossiblein interfacePersistenceExceptionTranslator- Parameters:
ex- a RuntimeException to translate- Returns:
- the corresponding DataAccessException (or
nullif the exception could not be translated, as in this case it may result from user code rather than from an actual persistence problem) - See Also:
DataIntegrityViolationException,SQLExceptionTranslator