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 Summary

Modifier and Type	Method	Description
Tuple	collapse(Tuple in)	Capture all the extra fields in 'in' into their correct capture fields.
Tuple	expand(Tuple in)	Expand all the capture fields in 'in'
Schema	getCollapsedSchema()
Schema	getExpandedSchema()

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