de.lmu.ifi.dbs.elki.index

Class AbstractRefiningIndex.AbstractRangeQuery<D extends Distance<D>>

java.lang.Object

de.lmu.ifi.dbs.elki.database.query.AbstractDataBasedQuery<O>

de.lmu.ifi.dbs.elki.database.query.range.AbstractDistanceRangeQuery<O,D>

de.lmu.ifi.dbs.elki.index.AbstractRefiningIndex.AbstractRangeQuery<D>

All Implemented Interfaces:

DatabaseQuery, RangeQuery<O,D>

Direct Known Subclasses:

PartialVAFile.PartialVAFileRangeQuery, VAFile.VAFileRangeQuery

Enclosing class:

AbstractRefiningIndex<O>

public abstract class AbstractRefiningIndex.AbstractRangeQuery<D extends Distance<D>>
extends AbstractDistanceRangeQuery<O,D>

Range query for this index.

Field Summary

Fields

Modifier and Type	Field and Description
private DistanceQuery<O,D>	distanceQuery Hold the distance function to be used.

Fields inherited from class de.lmu.ifi.dbs.elki.database.query.AbstractDataBasedQuery

relation

Fields inherited from interface de.lmu.ifi.dbs.elki.database.query.DatabaseQuery

HINT_BULK, HINT_EXACT, HINT_HEAVY_USE, HINT_NO_CACHE, HINT_OPTIMIZED_ONLY, HINT_SINGLE

Constructor Summary

Constructors

Constructor and Description
AbstractRefiningIndex.AbstractRangeQuery(DistanceQuery<O,D> distanceQuery) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
DistanceDBIDResult<D>	getRangeForDBID(DBIDRef id, D range) Get the nearest neighbors for a particular id in a given query range
protected void	incRefinements(int c) Count extra refinements.
protected D	refine(DBID id, O q) Refinement distance computation.

Methods inherited from class de.lmu.ifi.dbs.elki.database.query.range.AbstractDistanceRangeQuery

getRangeForObject

Methods inherited from class de.lmu.ifi.dbs.elki.database.query.AbstractDataBasedQuery

getRelation

Methods inherited from class java.lang.Object

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

Field Detail

distanceQuery

private DistanceQuery<O,D extends Distance<D>> distanceQuery

Hold the distance function to be used.

Constructor Detail

AbstractRefiningIndex.AbstractRangeQuery

public AbstractRefiningIndex.AbstractRangeQuery(DistanceQuery<O,D> distanceQuery)

Constructor.

Parameters:

distanceQuery - Distance query object

Method Detail

getRangeForDBID

public DistanceDBIDResult<D> getRangeForDBID(DBIDRef id,
                                    D range)

Description copied from interface: RangeQuery

Get the nearest neighbors for a particular id in a given query range

Specified by:

getRangeForDBID in interface RangeQuery<O,D extends Distance<D>>

Specified by:

getRangeForDBID in class AbstractDistanceRangeQuery<O,D extends Distance<D>>

Parameters:

id - query object ID

range - Query range

Returns:

neighbors

refine

protected D refine(DBID id,
       O q)

Refinement distance computation.

Parameters:

id - Candidate ID

q - Query object

Returns:

Distance

incRefinements

protected void incRefinements(int c)

Count extra refinements.

Parameters:

c - Refinements