org.eigenbase.rel.convert
Interface ConverterFactory

public interface ConverterFactory

A ConverterFactory is ...

Since:

Jun 18, 2003

Version:

$Id: //open/dev/farrago/src/org/eigenbase/rel/convert/ConverterFactory.java#9 $

Author:

jhyde

Method Summary

ConverterRel	convert(RelNode rel) Converts a relational expression, which must have getInConvention() calling convention, to a relational expression of getConvention() calling convention.
CallingConvention	getConvention() Returns the calling convention this converter converts to.
CallingConvention	getInConvention() Returns the calling convention this converter converts from.

Method Detail

getConvention

CallingConvention getConvention()

Returns the calling convention this converter converts to.

getInConvention

CallingConvention getInConvention()

Returns the calling convention this converter converts from.

convert

ConverterRel convert(RelNode rel)

Converts a relational expression, which must have getInConvention() calling convention, to a relational expression of getConvention() calling convention.