Package mondrian.rolap.agg

Manages a cache of aggregates containing cell values.

Interface Summary

Interface	Description
QuerySpec	Contains the information necessary to generate a SQL statement to retrieve a set of cells.
Segment.ExcludedRegion	Definition of a region of values which are not in a segment.
SegmentBuilder.SegmentConverter	Functor to convert a segment header and body into a SegmentWithData.
SegmentCacheManager.Command<T>
SegmentCacheManager.Message
SegmentCacheManager.Visitor	Visitor for messages (commands and events).
SegmentDataset	A SegmentDataset holds the values in a segment.
SegmentLoader.RowList.Handler

Class Summary

Class	Description
AbstractColumnPredicate	A AbstractColumnPredicate is an abstract implementation for StarColumnPredicate.
AbstractColumnPredicate.Factory	Factory for StarPredicates and StarColumnPredicates.
AbstractQuerySpec	Base class for QuerySpec implementations.
AbstractSegmentBody	Abstract implementation of a SegmentBody.
AggQuerySpec	An AggStar's version of the QuerySpec.
Aggregation	A Aggregation is a pre-computed aggregation over a set of columns.
AggregationKey	Column context that an Aggregation is computed for.
AggregationManager	RolapAggregationManager manages all Aggregations in the system.
AggregationManager.PinSetImpl	Implementation of RolapAggregationManager.PinSet using a HashSet.
AggregationOnDistinctCountMeasuresTest	AggregationOnDistinctCountMeasureTest tests the Distinct Count functionality with tuples and members.
AndPredicate	Predicate which is the intersection of a list of predicates.
CellRequest	A CellRequest contains the context necessary to get a cell value from a star.
DenseDoubleSegmentBody	Implementation of a segment body which stores the data inside a dense primitive array of double precision numbers.
DenseDoubleSegmentBodyTest
DenseDoubleSegmentDataset	Implementation of DenseSegmentDataset that stores values of type double.
DenseIntSegmentBody	Implementation of a segment body which stores the data inside a dense primitive array of integers.
DenseIntSegmentBodyTest
DenseIntSegmentDataset	Implementation of DenseSegmentDataset that stores values of type Object.
DenseNativeSegmentDataset	Implementation of DenseSegmentDataset that stores values of type double.
DenseObjectSegmentBody	Implementation of a segment body which stores the data inside a dense array of Java objects.
DenseObjectSegmentDataset	Implementation of DenseSegmentDataset that stores values of type Object.
DenseSegmentBodyTestBase<T extends AbstractSegmentBody,V>	This is a base class for two heirs.
DenseSegmentDataset	A DenseSegmentDataset is a means of storing segment values which is suitable when most of the combinations of keys have a value present.
DrillThroughCellRequest	Subclass of CellRequest that allows to specify which columns and measures to return as part of the ResultSet which we return to the client.
DrillThroughQuerySpec	Provides the information necessary to generate SQL for a drill-through request.
GroupingSet	A collection of Segments that can be represented as a GROUP BY GROUPING SET in a SQL query.
GroupingSetsList	Class for using GROUP BY GROUPING SETS sql query.
GroupingSetsList.Cohort	Collection of SegmentDataset that have the same dimensionality and identical axis values.
ListColumnPredicate	Predicate which is the union of a list of predicates, each of which applies to the same, single column.
ListPredicate	Base class for AndPredicate and OrPredicate.
LiteralStarPredicate	A constraint which always returns true or false.
MemberColumnPredicate	Column constraint defined by a member.
MemberTuplePredicate	Predicate which constrains a column to a particular member, or a range above or below a member, or a range between two members.
MinusStarPredicate	A StarPredicate which evaluates to true if its first child evaluates to true and its second child evaluates to false.
MockSegmentCache	Mock implementation of SegmentCache that is used for automated testing.
OrPredicate	Predicate which is the union of a list of predicates.
RangeColumnPredicate	Predicate constraining a column to be greater than or less than a given bound, or between a pair of bounds.
Segment	A Segment is a collection of cell values parameterized by a measure, and a set of (column, value) pairs.
SegmentArrayQuerySpec	Provides the information necessary to generate a SQL statement to retrieve a list of segments.
SegmentAxis	Collection of values of one of the columns that parameterizes a Segment.
SegmentBuilder	Helper class that contains methods to convert between Segment and SegmentHeader, and also SegmentWithData and SegmentBody.
SegmentBuilder.SegmentConverterImpl	Implementation of SegmentBuilder.SegmentConverter that uses an AggregationKey and CellRequest as context to convert a SegmentHeader.
SegmentBuilder.StarSegmentConverter	Implementation of SegmentBuilder.SegmentConverter that uses a star measure and a list of StarPredicate.
SegmentBuilderTest	Test for SegmentBuilder.
SegmentCacheManager	Active object that maintains the "global cache" (in JVM, but shared between connections using a particular schema) and "external cache" (as implemented by a SegmentCache.
SegmentCacheManager.CompositeSegmentCache	Makes a collection of SegmentCacheWorker objects (each of which is backed by a SegmentCache appear to be a SegmentCache.
SegmentCacheManager.FlushCommand	Command to flush a particular region from cache.
SegmentCacheManager.FlushResult	Result of a SegmentCacheManager.FlushCommand.
SegmentCacheTest	Test suite that runs the BasicQueryTest but with the MockSegmentCache active.
SegmentCacheWorker	Utility class to interact with the SegmentCache.
SegmentLoader	The SegmentLoader queries database and loads the data into the given set of segments.
SegmentLoader.RowList	Collection of rows, each with a set of columns of type Object, double, or int.
SegmentLoader.RowList.Column
SegmentLoader.RowList.DoubleColumn
SegmentLoader.RowList.IntColumn
SegmentLoader.RowList.LongColumn
SegmentLoader.RowList.NativeColumn
SegmentLoader.RowList.ObjectColumn
SegmentLoaderTest	Test for SegmentLoader
SegmentLoaderTest.MyDelegatingInvocationHandler
SegmentWithData	Extension to Segment with a data set.
SparseSegmentBody	Implementation of a segment body which stores the data of a sparse segment data set into a dense array of java objects.
SparseSegmentDataset	A SparseSegmentDataset is a means of storing segment values which is suitable when few of the combinations of keys have a value present.
StarPredicates	Utilities for StarPredicates and StarColumnPredicates.
ValueColumnPredicate	A constraint which requires a column to have a particular value.

Enum Summary

Enum	Description
SegmentBuilderTest.Order

Exception Summary

Exception	Description
CellRequestQuantumExceededException	Signals that there are enough outstanding cell requests that it is worth terminating this phase of execution and asking the segment cache for all of the cells that have been asked for.
SegmentCacheManager.AbortException	Exception which someone can throw to indicate to the Actor that whatever it was doing is not needed anymore.