de.lmu.ifi.dbs.elki.database

Class StaticArrayDatabase

java.lang.Object

de.lmu.ifi.dbs.elki.result.AbstractHierarchicalResult

de.lmu.ifi.dbs.elki.database.AbstractDatabase

de.lmu.ifi.dbs.elki.database.StaticArrayDatabase

All Implemented Interfaces:

Database, HierarchicalResult, Result

@Description(value="Database using an in-memory hashtable and at least providing linear scans.")
public class StaticArrayDatabase
extends AbstractDatabase

This database class uses array-based storage and thus does not allow for dynamic insert, delete and update operations. However, array access is expected to be faster and use less memory.

Since:

0.4.0

Author:

Arthur Zimek, Erich Schubert

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	StaticArrayDatabase.Parameterizer Parameterization class.

Field Summary

Fields

Modifier and Type	Field and Description
protected DatabaseConnection	databaseConnection The data source we get the initial data from.
private DBIDView	idrep The DBID representation we use
private ArrayStaticDBIDs	ids IDs of this database
private static Logging	LOG Our logger

Fields inherited from class de.lmu.ifi.dbs.elki.database.AbstractDatabase

eventManager, indexFactories, relations

Constructor Summary

Constructors

Constructor and Description
StaticArrayDatabase(DatabaseConnection databaseConnection) Constructor with no indexes.
StaticArrayDatabase(DatabaseConnection databaseConnection, java.util.Collection<? extends IndexFactory<?>> indexFactories) Constructor.

Method Summary

Modifier and Type	Method and Description
protected Logging	getLogger() Get the class logger.
void	initialize() Initialize the database by getting the initial data from the database connection.

Methods inherited from class de.lmu.ifi.dbs.elki.database.AbstractDatabase

accumulateDataStoreEvents, addDataStoreListener, flushDataStoreEvents, getBundle, getDistanceQuery, getKNNQuery, getLongName, getRangeQuery, getRelation, getRelations, getRKNNQuery, getShortName, getSimilarityQuery, getSimilarityRangeQuery, removeDataStoreListener

Methods inherited from class de.lmu.ifi.dbs.elki.result.AbstractHierarchicalResult

addChildResult, getHierarchy, setHierarchy

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.result.HierarchicalResult

getHierarchy, setHierarchy

Field Detail

LOG

private static final Logging LOG

Our logger

ids

private ArrayStaticDBIDs ids

IDs of this database

idrep

private DBIDView idrep

The DBID representation we use

databaseConnection

protected DatabaseConnection databaseConnection

The data source we get the initial data from.

Constructor Detail

StaticArrayDatabase

public StaticArrayDatabase(DatabaseConnection databaseConnection,
                           java.util.Collection<? extends IndexFactory<?>> indexFactories)

Constructor.

Parameters:

databaseConnection - Database connection to get the initial data from.

indexFactories - Indexes to add

StaticArrayDatabase

public StaticArrayDatabase(DatabaseConnection databaseConnection)

Constructor with no indexes.

Parameters:

databaseConnection - Database connection to get the initial data from.

Method Detail

initialize

public void initialize()

Initialize the database by getting the initial data from the database connection.

getLogger

protected Logging getLogger()

Description copied from class: AbstractDatabase

Get the class logger.

Specified by:

getLogger in class AbstractDatabase

Returns:

Class logger