OptimisticLockingListener (Camunda Platform Javadocs 7.20.0-alpha2)

All Known Implementing Classes:

AbstractBatchJobHandler, AcquireJobsCmd, BatchSetRemovalTimeJobHandler, BatchSetVariablesHandler, DecisionSetRemovalTimeJobHandler, DeleteHistoricDecisionInstancesJobHandler, DeleteHistoricProcessInstancesJobHandler, DeleteProcessInstancesJobHandler, MessageCorrelationBatchJobHandler, MigrationBatchJobHandler, ModificationBatchJobHandler, ProcessSetRemovalTimeJobHandler, RestartProcessInstancesJobHandler, SetExternalTaskRetriesJobHandler, SetJobRetriesJobHandler, UpdateProcessInstancesSuspendStateJobHandler
```
public interface OptimisticLockingListener
```
Allows registering a listener which is notified when an DbOperationType.UPDATE or DbOperationType.DELETE could not be performed.

Author:

Daniel Meyer

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`OptimisticLockingResult`	`failedOperation(DbOperation operation)`	Signifies that an operation failed due to optimistic locking.
`Class<? extends DbEntity>`	`getEntityType()`	The type of the entity for which this listener should be notified.

- Method Detail
  - getEntityType
```
Class<? extends DbEntity> getEntityType()
```
    The type of the entity for which this listener should be notified. If the implementation returns 'null', the listener is notified for all entity types.
    
    Returns:
    
    the entity type for which the listener should be notified.
  - failedOperation
```
OptimisticLockingResult failedOperation(DbOperation operation)
```
    Signifies that an operation failed due to optimistic locking.
    
    Parameters:
    
    operation - the failed operation.
    
    Returns:
    
    OptimisticLockingResult that instructs the caller how to handle the result of the failed operation.