Progress.Lang.LockConflict class

The AVM throws an instance of the Progress.Lang.LockConflict class and raises the STOP condition when a time-out occurs while waiting for a record lock or when the user indicates they want to stop waiting.

You can therefore catch instances of Progress.Lang.LockConflict in a CATCH block to trap each STOP condition raised by a time-out while waiting for a record lock. Its public properties provide information on the context in which the record lock is held.

You cannot inherit from this class.

Serializable:

Yes

Constructors

The class constructors are reserved for system use only.

Super Class

Progress.Lang.Stop class

Interfaces

This class does not implement interfaces (beyond those it inherits from its base class).

Public Properties

Public Methods

This class does not contain methods (beyond those it inherits from its base class).

Public Events

This class does not contain events.

Notes

• To enable older behavior and prevent the AVM from throwing Progress.Lang.LockConflict objects, specify the Catch STOP (-catchStop) startup parameter with the value 0 (-catchStop 0).
• You can specify the time-out period that an ABL application waits for the release of a record lock using the Lock Timeout (-lkwtmo) startup parameter.
• In character mode only (running Linux, Unix, or character mode in Windows), the user can also press CTRL+C to cancel a wait on a record lock. Note that unlike any other AVM context, pressing this key in the context of waiting for a record lock in character mode both raises the STOP condition and throws a Progress.Lang.LockConflict object. In any other AVM context, pressing this key throws a Progress.Lang.UserInterrupt object instead of a LockConflict object. For more information, see the Progress.Lang.UserInterrupt class description.
• Like other class-based objects that are no longer referenced, the AVM automatically deletes LockConflict objects using garbage collection.

See also

CATCH statement, ON STOP phrase, Progress.Lang.Stop class