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## org.springframework.dao
Class DataAccessException

    java.lang.Object
      java.lang.Throwable
          java.lang.Exception
              java.lang.RuntimeException
                  org.springframework.core.NestedRuntimeException
                      org.springframework.dao.DataAccessException

All Implemented Interfaces:
  Serializable

Direct Known Subclasses:
  CleanupFailureDataAccessException, ConcurrencyFailureException, DataAccessResourceFailureException, DataIntegrityViolationException, DataRetrievalFailureException, DataSourceLookupFailureException, InvalidDataAccessApiUsageException, InvalidDataAccessResourceUsageException, PermissionDeniedDataAccessException, UncategorizedDataAccessException

    public abstract class DataAccessException

extends NestedRuntimeException

Root of the hierarchy of data access exceptions discussed in Expert One-On-One J2EE Design and Development. Please see Chapter 9 of this book for detailed discussion of the motivation for this package.

This exception hierarchy aims to let user code find and handle the kind of error encountered without knowing the details of the particular data access API in use (e.g. JDBC). Thus it is possible to react to an optimistic locking failure without knowing that JDBC is being used.

As this class is a runtime exception, there is no need for user code to catch it or subclasses if any error is to be considered fatal (the usual case).

Author:
  Rod Johnson
See Also:
  Serialized Form

Constructor Summary
`DataAccessException(String msg)` Constructor for DataAccessException.
`DataAccessException(String msg, Throwable cause)` Constructor for DataAccessException.

Method Summary

Methods inherited from class org.springframework.core.NestedRuntimeException
`contains, getCause, getMessage, getMostSpecificCause, getRootCause, printStackTrace, printStackTrace`

Methods inherited from class java.lang.Throwable
`fillInStackTrace, getLocalizedMessage, getStackTrace, initCause, printStackTrace, setStackTrace, toString`

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

Constructor Detail

### DataAccessException

    public DataAccessException(String msg)

  Constructor for DataAccessException.

  Parameters:
    `msg` - the detail message

### DataAccessException

    public DataAccessException(String msg,
                               Throwable cause)

  Constructor for DataAccessException.

  Parameters:
    `msg` - the detail message
    `cause` - the root cause (usually from using a underlying data access API such as JDBC)

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