de.lmu.ifi.dbs.elki.database.connection
Class MultipleFileBasedDatabaseConnection<O extends DatabaseObject>

java.lang.Object
  de.lmu.ifi.dbs.elki.logging.AbstractLoggable
      de.lmu.ifi.dbs.elki.utilities.optionhandling.AbstractParameterizable
          de.lmu.ifi.dbs.elki.database.connection.AbstractDatabaseConnection<MultiRepresentedObject<O>>
              de.lmu.ifi.dbs.elki.database.connection.MultipleFileBasedDatabaseConnection<O>

All Implemented Interfaces:

DatabaseConnection<MultiRepresentedObject<O>>, Loggable, Parameterizable

public class MultipleFileBasedDatabaseConnection<O extends DatabaseObject>
extends AbstractDatabaseConnection<MultiRepresentedObject<O>>

Provides a database connection based on multiple files and parsers to be set.

Author:

Elke Achterts

Field Summary

static String	DEFAULT_PARSER Default parser.
static String	INPUT_D Description for parameter input.
static String	INPUT_P Label for parameter input.
private String[]	inputFiles The name of the input files.
private List<FileInputStream>	inputStreams The input files to parse from.
static String	LABEL_CONCATENATION A sign to separate components of a label.
static String	PARSER_D Description of parameter parser.
static String	PARSER_P Label for parameter parser.
private List<Parser<O>>	parsers The parsers.
static Pattern	SPLIT A pattern defining a comma.

Fields inherited from class de.lmu.ifi.dbs.elki.database.connection.AbstractDatabaseConnection

CLASS_LABEL_CLASS_D, CLASS_LABEL_CLASS_P, CLASS_LABEL_INDEX_D, CLASS_LABEL_INDEX_P, classLabelIndex, database, DATABASE_ID, EXTERNAL_ID_INDEX_D, EXTERNAL_ID_INDEX_P, forceExternalID

Fields inherited from class de.lmu.ifi.dbs.elki.utilities.optionhandling.AbstractParameterizable

optionHandler

Fields inherited from class de.lmu.ifi.dbs.elki.logging.AbstractLoggable

debug

Fields inherited from interface de.lmu.ifi.dbs.elki.database.connection.DatabaseConnection

PROPERTY_DATABASE, PROPERTY_PARSER

Constructor Summary

MultipleFileBasedDatabaseConnection()
Provides a database connection expecting input from several files.

Method Summary

Database<MultiRepresentedObject<O>>	getDatabase(Normalization<MultiRepresentedObject<O>> normalization) Returns a Database according to parameter settings.
String[]	setParameters(String[] args) Sets the attributes of the class accordingly to the given parameters.

Methods inherited from class de.lmu.ifi.dbs.elki.database.connection.AbstractDatabaseConnection

getAttributeSettings, normalizeAndTransformLabels

Methods inherited from class de.lmu.ifi.dbs.elki.utilities.optionhandling.AbstractParameterizable

addOption, checkGlobalParameterConstraints, deleteOption, description, description, description, getParameters, getParameterValue, getPossibleOptions, inlineDescription, isSet, setParameters

Methods inherited from class de.lmu.ifi.dbs.elki.logging.AbstractLoggable

debugFine, debugFiner, debugFinest, exception, message, progress, progress, progress, verbose, verbose, warning

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.lmu.ifi.dbs.elki.utilities.optionhandling.Parameterizable

checkGlobalParameterConstraints, description, getParameters, getPossibleOptions, inlineDescription

Field Detail

LABEL_CONCATENATION

public static final String LABEL_CONCATENATION

A sign to separate components of a label.

See Also:

Constant Field Values

DEFAULT_PARSER

public static final String DEFAULT_PARSER

Default parser.

PARSER_P

public static final String PARSER_P

Label for parameter parser.

See Also:

Constant Field Values

PARSER_D

public static final String PARSER_D

Description of parameter parser.

INPUT_P

public static final String INPUT_P

Label for parameter input.

See Also:

Constant Field Values

INPUT_D

public static final String INPUT_D

Description for parameter input.

See Also:

Constant Field Values

SPLIT

public static final Pattern SPLIT

A pattern defining a comma.

parsers

private List<Parser<O extends DatabaseObject>> parsers

The parsers.

inputStreams

private List<FileInputStream> inputStreams

The input files to parse from.

inputFiles

private String[] inputFiles

The name of the input files.

Constructor Detail

MultipleFileBasedDatabaseConnection

public MultipleFileBasedDatabaseConnection()

Provides a database connection expecting input from several files.

Method Detail

getDatabase

public Database<MultiRepresentedObject<O>> getDatabase(Normalization<MultiRepresentedObject<O>> normalization)

Description copied from interface: DatabaseConnection

Returns a Database according to parameter settings.

Parameters:

normalization - Normalization to perform a normalization if this action is supported. May remain null.

Returns:

a Database according to parameter settings

See Also:

DatabaseConnection.getDatabase(de.lmu.ifi.dbs.elki.normalization.Normalization)

setParameters

public String[] setParameters(String[] args)
                       throws ParameterException

Description copied from interface: Parameterizable

Sets the attributes of the class accordingly to the given parameters. Returns a new String array containing those entries of the given array that are neither expected nor used by this Parameterizable.

Specified by:

setParameters in interface Parameterizable

Overrides:

setParameters in class AbstractDatabaseConnection<MultiRepresentedObject<O extends DatabaseObject>>

Parameters:

args - parameters to set the attributes accordingly to

Returns:

String[] an array containing the unused parameters

Throws:

ParameterException - in case of wrong parameter-setting

See Also:

Parameterizable.setParameters(String[])