Package elki.database

Class ProxyDatabase

java.lang.Object

elki.database.AbstractDatabase

elki.database.ProxyDatabase

All Implemented Interfaces:

Database

public class ProxyDatabase
extends AbstractDatabase

A proxy database to use, e.g., for projections and partitions.

Since:

0.4.0

Author:

Erich Schubert

Nested Class Summary

Nested classes/interfaces inherited from class elki.database.AbstractDatabase

AbstractDatabase.Par

Field Summary

Fields

Modifier and Type	Field	Description
protected DBIDView	idrep	Our DBID representation
private static Logging	LOG	Logger class.

Fields inherited from class elki.database.AbstractDatabase

eventManager, indexFactories, relations

Constructor Summary

Constructors

Constructor	Description
ProxyDatabase(DBIDs ids)	Constructor.
ProxyDatabase(DBIDs ids, Database database)	Constructor, proxying all relations of an existing database.
ProxyDatabase(DBIDs ids, Relation<?>... relations)	Constructor.
ProxyDatabase(DBIDs ids, java.lang.Iterable<Relation<?>> relations)	Constructor.

Method Summary

Modifier and Type	Method	Description
void	addRelation(Relation<?> relation)	Add a new representation.
protected Logging	getLogger()	Get the class logger.
void	initialize()	Initialize the database, for example by loading the input data.
void	setDBIDs(DBIDs ids)	Set the DBIDs to use.

Methods inherited from class elki.database.AbstractDatabase

accumulateDataStoreEvents, addDataStoreListener, flushDataStoreEvents, getBundle, getLongName, getRelation, getRelations, getShortName, removeDataStoreListener

Methods inherited from class java.lang.Object

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

Field Detail

LOG

private static final Logging LOG

Logger class.

idrep

protected DBIDView idrep

Our DBID representation

Constructor Detail

ProxyDatabase

public ProxyDatabase(DBIDs ids)

Constructor.

Parameters:

ids - DBIDs to use

ProxyDatabase

public ProxyDatabase(DBIDs ids,
                     java.lang.Iterable<Relation<?>> relations)

Constructor.

Parameters:

ids - DBIDs to use

relations - Relations to contain

ProxyDatabase

public ProxyDatabase(DBIDs ids,
                     Relation<?>... relations)

Constructor.

Parameters:

ids - DBIDs to use

relations - Relations to contain

ProxyDatabase

public ProxyDatabase(DBIDs ids,
                     Database database)

Constructor, proxying all relations of an existing database.

Parameters:

ids - ids to proxy

database - Database to wrap

Method Detail

initialize

public void initialize()

Description copied from interface: Database

Initialize the database, for example by loading the input data. (Since this should NOT be done on construction time!)

addRelation

public void addRelation(Relation<?> relation)

Add a new representation.

Parameters:

relation - Representation to add.

getLogger

protected Logging getLogger()

Description copied from class: AbstractDatabase

Get the class logger.

Specified by:

getLogger in class AbstractDatabase

Returns:

Class logger

setDBIDs

public void setDBIDs(DBIDs ids)

Set the DBIDs to use.

Parameters:

ids - DBIDs to use