mondrian.calc

Interface MemberCalc

All Superinterfaces:

Calc

All Known Implementing Classes:

AbstractMemberCalc, AbstractVoidCalc, AggregateFunDef.AggregateCalc, CacheCalc, ConstantCalc, GenericCalc, HierarchyCurrentMemberFunDef.CalcImpl, HierarchyCurrentMemberFunDef.FixedCalcImpl, MemberArrayValueCalc, MemberValueCalc, TupleValueCalc, ValueCalc

public interface MemberCalc
extends Calc

Expression which yields a Member.

When implementing this interface, it is convenient to extend AbstractMemberCalc, but it is not required.

Since:

Sep 26, 2005

Author:

jhyde

Method Summary

Methods

Modifier and Type	Method and Description
Member	evaluateMember(Evaluator evaluator) Evaluates this expression to yield a member.

Methods inherited from interface mondrian.calc.Calc

accept, dependsOn, evaluate, getResultStyle, getType, isWrapperFor, unwrap

Method Detail

evaluateMember

Member evaluateMember(Evaluator evaluator)

Evaluates this expression to yield a member.

May return the null member (see Hierarchy.getNullMember()) but never null.

Parameters:

evaluator - Evaluation context

Returns:

a member