Package elki.datasource

Class ArrayAdapterDatabaseConnection

java.lang.Object

elki.datasource.AbstractDatabaseConnection

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 elki.datasource.AbstractDatabaseConnection

AbstractDatabaseConnection.Par

Field Summary

Fields

Modifier and Type	Field	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 elki.datasource.AbstractDatabaseConnection

filters, LABEL_CONCATENATION

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	Description
protected Logging	getLogger()	Get the logger for this database connection.
MultipleObjectsBundle	loadData()	Returns the initial data for a database.

Methods inherited from class 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