net.sourceforge.nrl.parser.ast.constraints
Interface ISelectionExpression

All Superinterfaces:

IConstraint, IExpression, INRLAstNode

public interface ISelectionExpression
extends IExpression

A selection expression: "the element where constraint".

Field Summary

Fields inherited from interface net.sourceforge.nrl.parser.ast.INRLAstNode

NEWLINE

Method Summary

IConstraint	getConstraint() Get the constraint that must hold for an element to be selected.
IModelReference	getModelReference() Return the model reference from which the selection is being made.
boolean	isSingleElementSelection() Return true if this selection is supposed to get a single element, false if it's selecting a list.

Methods inherited from interface net.sourceforge.nrl.parser.ast.constraints.IConstraint

getNRLDataType, setNRLDataType

Methods inherited from interface net.sourceforge.nrl.parser.ast.INRLAstNode

accept, dump, getColumn, getLine, getUserData, setUserData

Method Detail

getModelReference

IModelReference getModelReference()

Return the model reference from which the selection is being made. This must be a collection.

Returns:

the reference

getConstraint

IConstraint getConstraint()

Get the constraint that must hold for an element to be selected.

Returns:

the constraint

isSingleElementSelection

boolean isSingleElementSelection()

Return true if this selection is supposed to get a single element, false if it's selecting a list.

Returns:

true if single element