DatabaseDistanceQuery (ELKI: Environment for DeveLoping KDD-Applications Supported by Index-Structures)

Type Parameters:

O - relation object type.

All Superinterfaces:

DistanceQuery<O>

All Known Subinterfaces:

IndexBasedDistance.Instance<T,I>

All Known Implementing Classes:

AbstractDatabaseDistance.Instance, AbstractIndexBasedDistance.Instance, AbstractSimilarityAdapter.Instance, ArccosSimilarityAdapter.Instance, DBIDDistanceQuery, DBIDRangeDistanceQuery, LinearSimilarityAdapter.Instance, LnSimilarityAdapter.Instance, PrecomputedDistanceMatrix.PrecomputedDistanceQuery, SharedNearestNeighborJaccardDistance.Instance
```
public interface DatabaseDistanceQuery<O>
extends DistanceQuery<O>
```
Run a database query in a database context.

Since:

0.4.0

Author:

Erich Schubert

Method Summary

All Methods Instance Methods Default Methods
Modifier and Type	Method	Description
`default double`	`distance(DBIDRef id1, O o2)`	Returns the distance between the two objects specified by their object ids.
`default double`	`distance(O o1, DBIDRef id2)`	Returns the distance between the two objects specified by their object ids.
`default double`	`distance(O o1, O o2)`	Returns the distance between the two objects specified by their object ids.

Methods inherited from interface elki.database.query.distance.DistanceQuery
distance, getDistance, getRelation

- Method Detail
  - distance
```
default double distance(O o1,
                        DBIDRef id2)
```
    Description copied from interface: DistanceQuery
    
    Returns the distance between the two objects specified by their object ids.
    
    Specified by:
    
    distance in interface DistanceQuery<O>
    
    Parameters:
    
    o1 - first object
    
    id2 - second object id
    
    Returns:
    
    the distance between the two objects specified by their object ids
  - distance
```
default double distance(DBIDRef id1,
                        O o2)
```
    Description copied from interface: DistanceQuery
    
    Returns the distance between the two objects specified by their object ids.
    
    Specified by:
    
    distance in interface DistanceQuery<O>
    
    Parameters:
    
    id1 - first object id
    
    o2 - second object
    
    Returns:
    
    the distance between the two objects specified by their object ids
  - distance
```
default double distance(O o1,
                        O o2)
```
    Description copied from interface: DistanceQuery
    
    Returns the distance between the two objects specified by their object ids.
    
    Specified by:
    
    distance in interface DistanceQuery<O>
    
    Parameters:
    
    o1 - first object
    
    o2 - second object
    
    Returns:
    
    the distance between the two objects specified by their object ids