mondrian.rolap.agg
Class DenseObjectSegmentDataset

java.lang.Object
  mondrian.rolap.agg.DenseSegmentDataset
      mondrian.rolap.agg.DenseObjectSegmentDataset

All Implemented Interfaces:

Iterable<Map.Entry<CellKey,Object>>, SegmentDataset

 class DenseObjectSegmentDataset
extends DenseSegmentDataset

Implementation of DenseSegmentDataset that stores values of type Object.

The storage requirements are as follows. Table requires 1 word per cell.

Since:

21 March, 2002

Author:

jhyde

Field Summary

(package private) Object[]

values

Fields inherited from class mondrian.rolap.agg.DenseSegmentDataset

axisMultipliers

Constructor Summary

DenseObjectSegmentDataset(SegmentAxis[] axes, int size)
Creates a DenseSegmentDataset.

DenseObjectSegmentDataset(SegmentAxis[] axes, Object[] values)
Creates and populates a DenseSegmentDataset.

Method Summary

SegmentBody	createSegmentBody(List<Pair<SortedSet<Comparable>,Boolean>> axes) Return an immutable, final and serializable implementation of a SegmentBody in order to cache this dataset.
boolean	exists(CellKey pos) Returns whether there is a value at a given coordinate.
Object	getObject(CellKey key) Returns the value at a given coordinate, as an Object.
protected Object	getObject(int i)
protected int	getSize()
SqlStatement.Type	getType() Returns the SQL type of the data contained in this dataset.
boolean	isNull(CellKey pos) Returns whether the cell at a given coordinate is null.
void	populateFrom(int[] pos, SegmentDataset data, CellKey key)
void	populateFrom(int[] pos, SegmentLoader.RowList rowList, int column) Sets the value a given ordinal.
void	put(CellKey key, Object value)

Methods inherited from class mondrian.rolap.agg.DenseSegmentDataset

getBytes, getDouble, getInt, getOffset, getOffset, iterator

Methods inherited from class java.lang.Object

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

Field Detail

values

final Object[] values

Constructor Detail

DenseObjectSegmentDataset

DenseObjectSegmentDataset(SegmentAxis[] axes,
                          int size)

Creates a DenseSegmentDataset.

Parameters:

axes - Segment axes, containing actual column values

size - Number of coordinates

DenseObjectSegmentDataset

DenseObjectSegmentDataset(SegmentAxis[] axes,
                          Object[] values)

Creates and populates a DenseSegmentDataset. The data set is not copied.

Parameters:

axes - Axes

values - Data set

Method Detail

getObject

public Object getObject(CellKey key)

Description copied from interface: SegmentDataset

Returns the value at a given coordinate, as an Object.

Specified by:

getObject in interface SegmentDataset

Overrides:

getObject in class DenseSegmentDataset

Parameters:

key - Coordinate position

Returns:

Value

isNull

public boolean isNull(CellKey pos)

Description copied from interface: SegmentDataset

Returns whether the cell at a given coordinate is null.

Parameters:

pos - Coordinate position

Returns:

Whether cell value is null

exists

public boolean exists(CellKey pos)

Description copied from interface: SegmentDataset

Returns whether there is a value at a given coordinate.

Parameters:

pos - Coordinate position

Returns:

Whether there is a value

populateFrom

public void populateFrom(int[] pos,
                         SegmentDataset data,
                         CellKey key)

populateFrom

public void populateFrom(int[] pos,
                         SegmentLoader.RowList rowList,
                         int column)

Description copied from interface: SegmentDataset

Sets the value a given ordinal.

Parameters:

pos - Ordinal

rowList - Row list

column - Column of row list

getType

public SqlStatement.Type getType()

Description copied from interface: SegmentDataset

Returns the SQL type of the data contained in this dataset.

Returns:

A value of SqlStatement.Type

put

public void put(CellKey key,
                Object value)

getObject

protected Object getObject(int i)

Specified by:

getObject in class DenseSegmentDataset

getSize

protected int getSize()

Specified by:

getSize in class DenseSegmentDataset

createSegmentBody

public SegmentBody createSegmentBody(List<Pair<SortedSet<Comparable>,Boolean>> axes)

Description copied from interface: SegmentDataset

Return an immutable, final and serializable implementation of a SegmentBody in order to cache this dataset.

Parameters:

axes - An array with, for each axis, the set of axis values, sorted in natural order, and a flag saying whether the null value is also present. This is supplied by the SegmentLoader.

Returns:

A SegmentBody.