net.obsearch.pivots.dummy
Class IncrementalDummyPivotSelector<O extends OB>

java.lang.Object
  net.obsearch.pivots.AbstractIncrementalPivotSelector<O>
      net.obsearch.pivots.dummy.IncrementalDummyPivotSelector<O>

All Implemented Interfaces:

IncrementalPivotSelector<O>

public class IncrementalDummyPivotSelector<O extends OB>
extends AbstractIncrementalPivotSelector<O>
implements IncrementalPivotSelector<O>

IncrementalDummyPivotSelector is used for testing purposes.

Author:

Arnoldo Jose Muller Molina

Field Summary

Fields inherited from class net.obsearch.pivots.AbstractIncrementalPivotSelector

pivotable, r

Constructor Summary

IncrementalDummyPivotSelector()

Method Summary

PivotResult	generatePivots(int pivotCount, Index<O> index) Generates pivots from all the elements found in the DB.
PivotResult	generatePivots(int pivotCount, cern.colt.list.LongArrayList elements, Index<O> index) Generates pivots from the elements (object ids) given in the array elements.

Methods inherited from class net.obsearch.pivots.AbstractIncrementalPivotSelector

enableAcceptRepeated, getObject, mapId, max, select, selectO, selectUnique

Methods inherited from class java.lang.Object

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

Constructor Detail

IncrementalDummyPivotSelector

public IncrementalDummyPivotSelector()

Method Detail

generatePivots

public PivotResult generatePivots(int pivotCount,
                                  Index<O> index)
                           throws OBException,
                                  IllegalAccessException,
                                  InstantiationException,
                                  OBStorageException,
                                  PivotsUnavailableException

Description copied from interface: IncrementalPivotSelector

Generates pivots from all the elements found in the DB.

Specified by:

generatePivots in interface IncrementalPivotSelector<O extends OB>

Overrides:

generatePivots in class AbstractIncrementalPivotSelector<O extends OB>

Parameters:

pivotCount - The # of pivots that will be generated.

Returns:

A list of the ids of the pivots.

Throws:

OBStorageException - If something goes wrong with the DB

OBException - User generated exception

IllegalAccessException - If there is a problem when instantiating objects O

InstantiationException - If there is a problem when instantiating objects O

PivotsUnavailableException - If not all the pivots requested were found.

generatePivots

public PivotResult generatePivots(int pivotCount,
                                  cern.colt.list.LongArrayList elements,
                                  Index<O> index)
                           throws OBException,
                                  IllegalAccessException,
                                  InstantiationException,
                                  OBStorageException,
                                  PivotsUnavailableException

Description copied from interface: IncrementalPivotSelector

Generates pivots from the elements (object ids) given in the array elements. Generates pivotsCount pivots.

Specified by:

generatePivots in interface IncrementalPivotSelector<O extends OB>

Specified by:

generatePivots in class AbstractIncrementalPivotSelector<O extends OB>

Returns:

A list of the ids of the pivots.

Throws:

OBException

IllegalAccessException

InstantiationException

OBStorageException

PivotsUnavailableException