adql.query.operand

Interface UnknownType

All Superinterfaces:

ADQLObject, ADQLOperand

All Known Implementing Classes:

ADQLColumn, DefaultUDF, UserDefinedFunction

public interface UnknownType
extends ADQLOperand

Operand whose the type can not be known at the parsing time. A post-parsing step with column metadata is needed to resolved their types.

Note: For the moment, only two operands are concerned: columns (ADQLColumn) and user defined functions (UserDefinedFunction).

Since:

1.3

Version:

1.3 (10/2014)

Author:

Grégory Mantelet (ARI)

Method Summary

Modifier and Type	Method and Description
char	getExpectedType() Get the type expected by the syntactic parser according to the context.
void	setExpectedType(char c) Set the type expected for this operand.

Methods inherited from interface adql.query.operand.ADQLOperand

isGeometry, isNumeric, isString

Methods inherited from interface adql.query.ADQLObject

adqlIterator, getCopy, getName, getPosition, toADQL

Method Detail

getExpectedType

char getExpectedType()

Get the type expected by the syntactic parser according to the context.

Returns:

Expected type: 'n' or 'N' for numeric, 's' or 'S' for string, 'g' or 'G' for geometry.

setExpectedType

void setExpectedType(char c)

Set the type expected for this operand.

Parameters:

c - Expected type: 'n' or 'N' for numeric, 's' or 'S' for string, 'g' or 'G' for geometry.