com.sleepycat.je
Class DeadlockException

java.lang.Object
  java.lang.Throwable
      java.lang.Exception
          java.lang.RuntimeException
              com.sleepycat.je.DatabaseException
                  com.sleepycat.je.OperationFailureException
                      com.sleepycat.je.LockConflictException
                          com.sleepycat.je.DeadlockException

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

LockNotGrantedException

Deprecated. temporarily until true deadlock detection is implemented. Presently, {code DeadlockException} is replaced by LockConflictException as the common base class for lock conflict exceptions.

public class DeadlockException
extends LockConflictException

Thrown when a lock or transaction timeout occurs and EnvironmentConfig.LOCK_OLD_LOCK_EXCEPTIONS is set to true.

Currently (unless EnvironmentConfig.LOCK_OLD_LOCK_EXCEPTIONS is set to true, see below) DeadlockException is not thrown by JE because true deadlock detection is not used in JE. Currently, lock timeouts are used instead, and a deadlock will cause a LockTimeoutException. When true deadlock detection is added to JE in the future, DeadlockException will be thrown instead of LockTimeoutException when a true deadlock occurs.

For compatibility with JE 3.3 and earlier, DeadlockException is thrown instead of LockTimeoutException and TransactionTimeoutException when EnvironmentConfig.LOCK_OLD_LOCK_EXCEPTIONS is set to true. This configuration parameter is false by default. See EnvironmentConfig.LOCK_OLD_LOCK_EXCEPTIONS for information on the changes that should be made to all applications that upgrade from JE 3.3 or earlier.

Normally, applications should catch the base class LockConflictException rather than catching one of its subclasses. All lock conflicts are typically handled in the same way, which is normally to abort and retry the transaction. See LockConflictException for more information.

The Transaction handle is invalidated as a result of this exception.

See Also:

Serialized Form

Method Summary

Methods inherited from class com.sleepycat.je.LockConflictException

getOwnerTxnIds, getWaiterTxnIds

Methods inherited from class com.sleepycat.je.DatabaseException

getMessage

Methods inherited from class java.lang.Throwable

fillInStackTrace, getCause, getLocalizedMessage, getStackTrace, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString

Methods inherited from class java.lang.Object

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