OptionalContext (IBM InfoSphere Streams Java Operator API)

All Known Subinterfaces:

CheckpointContext, ConsistentRegionContext, ControlPlaneContext
```
public interface OptionalContext
```
An invocation of an operator may have optional contexts, that provide information specific to a particular environment, such as a consistent region.
An optional context can be obtained through OperatorContext.getOptionalContext(Class).
Any optional context interface will extend this interface.

Since:

InfoSphere® Streams Version 4.0