de.lmu.ifi.dbs.elki.datasource
Class ExternalIDJoinDatabaseConnection

java.lang.Object
  de.lmu.ifi.dbs.elki.datasource.AbstractDatabaseConnection
      de.lmu.ifi.dbs.elki.datasource.ExternalIDJoinDatabaseConnection

All Implemented Interfaces:

DatabaseConnection, InspectionUtilFrequentlyScanned, Parameterizable

public class ExternalIDJoinDatabaseConnection
extends AbstractDatabaseConnection
implements Parameterizable

Joins multiple data sources by their label

Nested Class Summary

static class

ExternalIDJoinDatabaseConnection.Parameterizer Parameterization class.

Field Summary

private static Logging	logger Logger
protected List<DatabaseConnection>	sources The filters to invoke

Fields inherited from class de.lmu.ifi.dbs.elki.datasource.AbstractDatabaseConnection

filters, FILTERS_ID, LABEL_CONCATENATION

Constructor Summary

ExternalIDJoinDatabaseConnection(List<ObjectFilter> filters, List<DatabaseConnection> sources)
Constructor.

Method Summary

protected Logging	getLogger() Get the logger for this database connection.
MultipleObjectsBundle	loadData() Returns the initial data for a database.

Methods inherited from class de.lmu.ifi.dbs.elki.datasource.AbstractDatabaseConnection

invokeFilters

Methods inherited from class java.lang.Object

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

Field Detail

logger

private static final Logging logger

Logger

sources

protected final List<DatabaseConnection> sources

The filters to invoke

Constructor Detail

ExternalIDJoinDatabaseConnection

public ExternalIDJoinDatabaseConnection(List<ObjectFilter> filters,
                                        List<DatabaseConnection> sources)

Constructor.

Parameters:

filters - Filters to use.

sources - Data sources to join.

Method Detail

loadData

public MultipleObjectsBundle loadData()

Description copied from interface: DatabaseConnection

Returns the initial data for a database.

Specified by:

loadData in interface DatabaseConnection

Returns:

a database object bundle

getLogger

protected Logging getLogger()

Description copied from class: AbstractDatabaseConnection

Get the logger for this database connection.

Specified by:

getLogger in class AbstractDatabaseConnection

Returns:

Logger