de.lmu.ifi.dbs.elki.datasource

Class ArrayAdapterDatabaseConnection

java.lang.Object

de.lmu.ifi.dbs.elki.datasource.AbstractDatabaseConnection

de.lmu.ifi.dbs.elki.datasource.ArrayAdapterDatabaseConnection

All Implemented Interfaces:

DatabaseConnection

public class ArrayAdapterDatabaseConnection
extends AbstractDatabaseConnection

Import an existing data matrix (double[rows][cols]) into an ELKI database. For efficiency, the data is not copied. If you modify the array afterwards, you can break indexes and algorithm results. It is your responsbility to not do this! Note: this class is not parameterizable, but can only be used from Java.

Since:

0.5.0

Author:

Erich Schubert

Nested Class Summary

Nested classes/interfaces inherited from class de.lmu.ifi.dbs.elki.datasource.AbstractDatabaseConnection

AbstractDatabaseConnection.Parameterizer

Field Summary

Fields

Modifier and Type	Field and Description
(package private) double[][]	data The actual data.
(package private) java.lang.String[]	labels Object labels.
private static Logging	LOG Class logger.
(package private) java.lang.Integer	startid Starting ID for fixed object ids.

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

filters, LABEL_CONCATENATION

Constructor Summary

Constructors

Constructor and Description
ArrayAdapterDatabaseConnection(double[][] data) Constructor.
ArrayAdapterDatabaseConnection(double[][] data, java.util.List<ObjectFilter> filters) Constructor.
ArrayAdapterDatabaseConnection(double[][] data, java.lang.String[] labels) Constructor.
ArrayAdapterDatabaseConnection(double[][] data, java.lang.String[] labels, java.lang.Integer startid) Constructor.
ArrayAdapterDatabaseConnection(double[][] data, java.lang.String[] labels, java.lang.Integer startid, java.util.List<ObjectFilter> filters) Constructor.
ArrayAdapterDatabaseConnection(double[][] data, java.lang.String[] labels, java.util.List<ObjectFilter> filters) Constructor.

Method Summary

Modifier and Type	Method and Description
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

invokeBundleFilters, invokeStreamFilters

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

Class logger.

data

double[][] data

The actual data.

labels

java.lang.String[] labels

Object labels.

startid

java.lang.Integer startid

Starting ID for fixed object ids.

Constructor Detail

ArrayAdapterDatabaseConnection

public ArrayAdapterDatabaseConnection(double[][] data)

Constructor.

Parameters:

data - Existing data matrix

ArrayAdapterDatabaseConnection

public ArrayAdapterDatabaseConnection(double[][] data,
                                      java.util.List<ObjectFilter> filters)

Constructor.

Parameters:

data - Existing data matrix

filters - Filters to apply, can be null

ArrayAdapterDatabaseConnection

public ArrayAdapterDatabaseConnection(double[][] data,
                                      java.lang.String[] labels)

Constructor.

Parameters:

data - Existing data matrix

labels - Object labels

ArrayAdapterDatabaseConnection

public ArrayAdapterDatabaseConnection(double[][] data,
                                      java.lang.String[] labels,
                                      java.util.List<ObjectFilter> filters)

Constructor.

Parameters:

data - Existing data matrix

labels - Object labels

filters - Filters to apply, can be null

ArrayAdapterDatabaseConnection

public ArrayAdapterDatabaseConnection(double[][] data,
                                      java.lang.String[] labels,
                                      java.lang.Integer startid)

Constructor.

Parameters:

data - Existing data matrix

labels - Object labels

startid - Starting object ID

ArrayAdapterDatabaseConnection

public ArrayAdapterDatabaseConnection(double[][] data,
                                      java.lang.String[] labels,
                                      java.lang.Integer startid,
                                      java.util.List<ObjectFilter> filters)

Constructor.

Parameters:

data - Existing data matrix

labels - Object labels

startid - Starting object ID

filters - Filters to apply, can be null

Method Detail

loadData

public MultipleObjectsBundle loadData()

Description copied from interface: DatabaseConnection

Returns the initial data for a database.

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