org.apache.calcite.sql.type

Interface SqlTypeTransform

public interface SqlTypeTransform

Strategy to transform one type to another. The transformation is dependent on the implemented strategy object and in the general case is a function of the type and the other operands. Can not be used by itself. Must be used in an object of type SqlTypeTransformCascade.

This class is an example of the strategy pattern.

Method Summary

Methods

Modifier and Type	Method and Description
RelDataType	transformType(SqlOperatorBinding opBinding, RelDataType typeToTransform) Transforms a type.

Method Detail

transformType

RelDataType transformType(SqlOperatorBinding opBinding,
                        RelDataType typeToTransform)

Transforms a type.

Parameters:

opBinding - call context in which transformation is being performed

typeToTransform - type to be transformed, never null

Returns:

transformed type, never null