DurableBackgroundTask (Ignite 2.17.0)

Type Parameters:

R - Type of the result of the task.

All Superinterfaces:

Serializable

All Known Implementing Classes:

DurableBackgroundCleanupIndexTreeTask, DurableBackgroundCleanupIndexTreeTaskV2
```
public interface DurableBackgroundTask<R>
extends Serializable
```
Durable task that should be used to do long operations (e.g. index deletion) in background.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`void`	`cancel()`	Canceling the task.
`default DurableBackgroundTask<?>`	`convertAfterRestoreIfNeeded()`	Converting the current task to another after restoring from metaStorage.
`IgniteInternalFuture<DurableBackgroundTaskResult<R>>`	`executeAsync(GridKernalContext ctx)`	Asynchronous task execution.
`String`	`name()`	Getting the name of the task to identify it.

- Method Detail
  - name
```
String name()
```
    Getting the name of the task to identify it. Also used as part of a key for storage in a MetaStorage.
    
    Returns:
    
    Task name.
  - cancel
```
void cancel()
```
    Canceling the task.
  - executeAsync
```
IgniteInternalFuture<DurableBackgroundTaskResult<R>> executeAsync(GridKernalContext ctx)
```
    Asynchronous task execution. Completion of the task execution should be only with the result.
    
    Parameters:
    
    ctx - Kernal context.
    
    Returns:
    
    Future of the tasks.
  - convertAfterRestoreIfNeeded
```
default DurableBackgroundTask<?> convertAfterRestoreIfNeeded()
```
    Converting the current task to another after restoring from metaStorage.
    
    Returns:
    
    Converted task.