mondrian.rolap

Class RolapStatisticsCache

java.lang.Object

mondrian.rolap.RolapStatisticsCache

public class RolapStatisticsCache
extends Object

Provides and caches statistics.

Wrapper around a chain of StatisticsProviders, followed by a cache to store the results.

Constructor Summary

Constructors

Constructor and Description
RolapStatisticsCache(RolapStar star)

Method Summary

Methods

Modifier and Type	Method and Description
int	getColumnCardinality(MondrianDef.Relation relation, MondrianDef.Expression expression, int approxCardinality)
int	getColumnCardinality2(DataSource dataSource, Dialect dialect, String catalog, String schema, String table, String column)
int	getRelationCardinality(MondrianDef.Relation relation, String alias, int approxRowCount)

Methods inherited from class java.lang.Object

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

Constructor Detail

RolapStatisticsCache

public RolapStatisticsCache(RolapStar star)

Method Detail

getRelationCardinality

public int getRelationCardinality(MondrianDef.Relation relation,
                         String alias,
                         int approxRowCount)

getColumnCardinality

public int getColumnCardinality(MondrianDef.Relation relation,
                       MondrianDef.Expression expression,
                       int approxCardinality)

getColumnCardinality2

public int getColumnCardinality2(DataSource dataSource,
                        Dialect dialect,
                        String catalog,
                        String schema,
                        String table,
                        String column)