mondrian.calc
Interface IterCalc

All Superinterfaces:

Calc

All Known Subinterfaces:

ListCalc

All Known Implementing Classes:

AbstractIterCalc, AbstractListCalc, CrossJoinFunDef.BaseListCalc, CrossJoinFunDef.CrossJoinIterCalc, CrossJoinFunDef.ImmutableListCalc, CrossJoinFunDef.MutableListCalc, DistinctFunDef.CalcImpl, GenericIterCalc, IterableListCalc, NativizeSetFunDef.NativeListCalc, NativizeSetFunDef.NonNativeIterCalc, NativizeSetFunDef.NonNativeListCalc, SetFunDef.ExprIterCalc, SetFunDef.SetListCalc

public interface IterCalc
extends Calc

Expression that evaluates a set of tuples to a TupleIterable.

Since:

Jan 11, 2007

Author:

Richard Emberson

Method Summary

TupleIterable

evaluateIterable(Evaluator evaluator) Evaluates an expression to yield an Iterable of members or tuples.

Methods inherited from interface mondrian.calc.Calc

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

Method Detail

evaluateIterable

TupleIterable evaluateIterable(Evaluator evaluator)

Evaluates an expression to yield an Iterable of members or tuples.

The Iterable is immutable.

Parameters:

evaluator - Evaluation context

Returns:

An Iterable of members or tuples, never null.