```
public interface BundleSplitHandler
```
A handler which is invoked whenever an active bundle is split. The active bundle will continue to keep processing until it is complete.
The returned split response contains a description of work that has been performed containing a primary portion that the SDK is responsible for processing and a residual which the runner is responsible for scheduling for future processing. See breaking the fusion barrier for further details.

All Methods Static Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`split(org.apache.beam.model.fnexecution.v1.BeamFnApi.ProcessBundleSplitResponse splitResponse)`
`static BundleSplitHandler`	`unsupported()`	Returns a bundle split handler that throws on any split response.

void split(org.apache.beam.model.fnexecution.v1.BeamFnApi.ProcessBundleSplitResponse splitResponse)

unsupported
```
static BundleSplitHandler unsupported()
```
Returns a bundle split handler that throws on any split response.

Interface BundleSplitHandler