csheets.core.formula
Interface Reference

All Superinterfaces:

Comparable<Reference>, Expression, Serializable

All Known Implementing Classes:

CellReference, ReferenceOperation

public interface Reference
extends Expression, Comparable<Reference>

A reference to one or more cells in a spreadsheet.

Author:

Einar Pehrson

Method Summary

int	compareTo(Reference reference) Compares the reference with the given reference for order.
Value	evaluate() Evaluates the expression and returns the result.
SortedSet<Cell>	getCells() Returns the cell addresses (or address) that the reference points to.

Methods inherited from interface csheets.core.formula.Expression

accept

Method Detail

evaluate

Value evaluate()

Description copied from interface: Expression

Evaluates the expression and returns the result.

Specified by:

evaluate in interface Expression

Returns:

the result of the evaluation

getCells

SortedSet<Cell> getCells()

Returns the cell addresses (or address) that the reference points to.

Returns:

a naturally ordered set of the references' addresses

compareTo

int compareTo(Reference reference)

Compares the reference with the given reference for order.

Specified by:

compareTo in interface Comparable<Reference>

Parameters:

reference - the reference to be compared

Returns:

a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object.