```
public interface IBatchSessionController
```
Callback used by the batch mode of BM to bring additional control of the batch operations. In case if the descendant of this interface is being used as an externally provided handle to the IBmModel.beginBatchSession(Object) the system calls the corresponding methods of the callback during the batch lifecycle.

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`default boolean`	`isAsyncSaveRequired()`	Should return `true` if saving of all resources should be done in asynchronous mode, `false` - otherwise.
`boolean`	`isParallelSaveAllowed()`	Returns `true` if saving of all resources can be done in parallel, `false` - otherwise.
`void`	`onAfterEventProcessing()`	Called right after enqueing all events being collected during the batch mode.
`void`	`onAfterSave()`	Called right after the end of saving of all resources being changed during the batch mode.
`void`	`onBeforeEventProcessing()`	Called right before the event processing collected by the batch mode.
`void`	`onBeforeSave(int taskCount)`	Called right before saving of all resources being changed during the batch mode.

Interface IBatchSessionController