mondrian.olap.fun
Class SetFunDef.ListSetCalc

java.lang.Object
  mondrian.calc.impl.AbstractCalc
      mondrian.calc.impl.AbstractListCalc
          mondrian.olap.fun.SetFunDef.ListSetCalc

All Implemented Interfaces:

Calc, ListCalc, MemberListCalc, TupleListCalc

Enclosing class:

SetFunDef

public static class SetFunDef.ListSetCalc
extends AbstractListCalc

Compiled expression to implement the MDX set function, { ... }.

The set function can contain expressions which yield sets together with expressions which yield individual members/tuples, provided that they all have the same type. It automatically removes null members or partially-null tuples from the list.

The implementation uses VoidCalc objects with side-effects to avoid generating lots of intermediate lists.

Field Summary

Fields inherited from class mondrian.calc.impl.AbstractCalc

exp, type

Constructor Summary

SetFunDef.ListSetCalc(Exp exp, Exp[] args, ExpCompiler compiler, List<ResultStyle> resultStyles)

Method Summary

List	evaluateList(Evaluator evaluator) Evaluates an expression to yield a list of members or tuples.
Calc[]	getCalcs() Returns this expression's child expressions.

Methods inherited from class mondrian.calc.impl.AbstractListCalc

evaluate, evaluateMemberList, evaluateTupleList, getResultStyle

Methods inherited from class mondrian.calc.impl.AbstractCalc

accept, anyDepends, anyDependsButFirst, butDepends, dependsOn, getArguments, getName, getType, simplifyEvaluator

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface mondrian.calc.Calc

accept, dependsOn, getType

Constructor Detail

SetFunDef.ListSetCalc

public SetFunDef.ListSetCalc(Exp exp,
                             Exp[] args,
                             ExpCompiler compiler,
                             List<ResultStyle> resultStyles)

Method Detail

getCalcs

public Calc[] getCalcs()

Description copied from class: AbstractCalc

Returns this expression's child expressions.

Overrides:

getCalcs in class AbstractListCalc

evaluateList

public List evaluateList(Evaluator evaluator)

Description copied from interface: ListCalc

Evaluates an expression to yield a list of members or tuples.

The list is immutable if Calc.getResultStyle() yields ResultStyle.MUTABLE_LIST. Otherwise, the caller must not modify the list.

Parameters:

evaluator - Evaluation context

Returns:

A list of members or tuples, never null.