Package com.streambase.sb

Interface TupleCaptureTransformer

public interface TupleCaptureTransformer
A TupleCaptureTransformer represents a way of converting tuples with capture fields from inside the application to tuples without capture fields, with all of the fields stored in the capture expanded out to the same level as the capture field itself.
Since:
7.2

  • Method Details

    • getCollapsedSchema

      Schema getCollapsedSchema()
      Returns:
      the collapsed schema for this transformer. All applicable fields are inside their captures.

    • getExpandedSchema

      Schema getExpandedSchema()
      Returns:
      the destination schema for this transformer. All capture fields have been expanded out.

    • expand

      Tuple expand(Tuple in) throws TupleException
      Expand all the capture fields in 'in'
      Parameters:
      in - tuple
      Returns:
      the expanded tuple
      Throws:
      TupleException - if in has the wrong schema

    • collapse

      Tuple collapse(Tuple in) throws TupleException
      Capture all the extra fields in 'in' into their correct capture fields.
      Parameters:
      in - tuple
      Returns:
      the tuple with all extra fields captured
      Throws:
      TupleException - if in has the wrong schema