Package 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 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