Class DataAccessException

java.lang.Object

java.lang.Throwable

java.lang.Exception

java.io.IOException

com.codename1.backend.DataAccessException

public class DataAccessException
extends IOException

A database operation failed: a statement the engine refused, a connection that could not be opened or was lost, a query that returned more rows than one.

Named after Spring's, and treated the same way by @Transactional: it rolls the transaction back although it is a checked exception. Spring's rule is that unchecked exceptions roll back and checked ones commit, and in Spring a failed statement rolls back because its JDBC layer throws the unchecked DataAccessException. This runtime's data methods declare IOException, so their failures are this subtype of it, and the build's rollback rule lists it beside RuntimeException and Error. A plain IOException of the application's own -- a file it could not read -- still commits, as in Spring; rollbackFor and noRollbackFor change either.

Constructor Summary

Constructors

Constructor	Description
DataAccessException(String message)
DataAccessException(String message, Throwable cause)

Method Summary

Methods inherited from class Throwable

addSuppressed, getCause, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, setStackTrace, toString

Methods inherited from class Object

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

Constructor Details

DataAccessException

public DataAccessException(String message)

DataAccessException

public DataAccessException(String message,
 Throwable cause)