adql.query.operand

Interface ADQLOperand

All Superinterfaces:

ADQLObject

All Known Subinterfaces:

UnknownType

All Known Implementing Classes:

ADQLColumn, ADQLFunction, AreaFunction, BoxFunction, CentroidFunction, CircleFunction, Concatenation, ContainsFunction, DefaultUDF, DistanceFunction, ExtractCoord, ExtractCoordSys, GeometryFunction, GeometryFunction.GeometryValue, IntersectsFunction, MathFunction, NegativeOperand, NumericConstant, Operation, PointFunction, PolygonFunction, RegionFunction, SQLFunction, StringConstant, UserDefinedFunction, WrappedOperand

public interface ADQLOperand
extends ADQLObject

Any ADQL operand (an operation, a constant, a column name, a function, ...) must implement this interface and indicates whether it corresponds to a numeric, a string or a geometrical region value.

Version:

1.3 (10/2014)

Author:

Grégory Mantelet (CDS;ARI)

Method Summary

Modifier and Type	Method and Description
boolean	isGeometry() Tell whether this operand is a geometrical region or not.
boolean	isNumeric() Tell whether this operand is numeric or not.
boolean	isString() Tell whether this operand is a string or not.

Methods inherited from interface adql.query.ADQLObject

adqlIterator, getCopy, getName, getPosition, toADQL

Method Detail

isNumeric

boolean isNumeric()

Tell whether this operand is numeric or not.

Returns:

true if this operand is numeric, false otherwise.

isString

boolean isString()

Tell whether this operand is a string or not.

Returns:

true if this operand is a string, false otherwise.

isGeometry

boolean isGeometry()

Tell whether this operand is a geometrical region or not.

Returns:

true if this operand is a geometry, false otherwise.

Since:

1.3