Package mondrian.rolap

Class RolapNamedSetEvaluator

java.lang.Object

mondrian.rolap.RolapNamedSetEvaluator

All Implemented Interfaces:

TupleList.PositionCallback, Evaluator.NamedSetEvaluator

class RolapNamedSetEvaluator
extends Object
implements Evaluator.NamedSetEvaluator, TupleList.PositionCallback

Evaluation context for a particular named set.

Since:

November 11, 2008

Author:

jhyde

Constructor Summary

Constructors

Constructor	Description
RolapNamedSetEvaluator(RolapResult.RolapResultEvaluatorRoot rrer, NamedSet namedSet)	Creates a RolapNamedSetEvaluator.

Method Summary

Modifier and Type	Method	Description
Member	currentMember()	Returns the current member in the named set.
int	currentOrdinal()	Returns the ordinal of the current member or tuple in the named set.
Member[]	currentTuple()	Returns the current tuple in the named set.
TupleIterable	evaluateTupleIterable(Evaluator evaluator)	Returns an iterator over the tuples of the named set.
void	onPosition(int index)

Methods inherited from class java.lang.Object

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

Constructor Detail

RolapNamedSetEvaluator

public RolapNamedSetEvaluator(RolapResult.RolapResultEvaluatorRoot rrer,
                              NamedSet namedSet)

Creates a RolapNamedSetEvaluator.

Parameters:

rrer - Evaluation root context

namedSet - Named set

Method Detail

evaluateTupleIterable

public TupleIterable evaluateTupleIterable(Evaluator evaluator)

Description copied from interface: Evaluator.NamedSetEvaluator

Returns an iterator over the tuples of the named set. Applicable if the named set is a set of tuples.

The iterator from this iterable maintains the current ordinal property required for the methods Evaluator.NamedSetEvaluator.currentOrdinal() and Evaluator.NamedSetEvaluator.currentTuple().

Specified by:

evaluateTupleIterable in interface Evaluator.NamedSetEvaluator

Parameters:

evaluator - Evaluator for current context

Returns:

Iterable over the tuples of the set

currentOrdinal

public int currentOrdinal()

Description copied from interface: Evaluator.NamedSetEvaluator

Returns the ordinal of the current member or tuple in the named set.

Specified by:

currentOrdinal in interface Evaluator.NamedSetEvaluator

Returns:

Ordinal of the current member or tuple in the named set

onPosition

public void onPosition(int index)

Specified by:

onPosition in interface TupleList.PositionCallback

currentTuple

public Member[] currentTuple()

Description copied from interface: Evaluator.NamedSetEvaluator

Returns the current tuple in the named set.

Applicable if the named set is a set of tuples.

Specified by:

currentTuple in interface Evaluator.NamedSetEvaluator

Returns:

Current tuple.

currentMember

public Member currentMember()

Description copied from interface: Evaluator.NamedSetEvaluator

Returns the current member in the named set.

Applicable if the named set is a set of members.

Specified by:

currentMember in interface Evaluator.NamedSetEvaluator

Returns:

Current member