de.lmu.ifi.dbs.elki.index

Class AbstractIndex<O>

java.lang.Object

de.lmu.ifi.dbs.elki.index.AbstractIndex<O>

Type Parameters:

O - Object type stored in the index

All Implemented Interfaces:

Index, Result

Direct Known Subclasses:

AbstractPreprocessorIndex, AbstractRefiningIndex

public abstract class AbstractIndex<O>
extends Object
implements Index

Abstract base class for indexes with some implementation defaults.

Field Summary

Fields

Modifier and Type	Field and Description
protected Relation<O>	relation The representation we are bound to.

Constructor Summary

Constructors

Constructor and Description
AbstractIndex(Relation<O> relation) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	delete(DBID id) Deletes the specified object from this index.
void	deleteAll(DBIDs id) Deletes the specified objects from this index.
abstract String	getLongName() A "pretty" name for the result, for use in titles, captions and menus.
PageFileStatistics	getPageFileStatistics() Get the underlying page file (or a proxy), for access counts.
abstract String	getShortName() A short name for the result, useful for file names.
void	insert(DBID id) Inserts the specified object into this index.
void	insertAll(DBIDs ids) Inserts the specified objects into this index.

Methods inherited from class java.lang.Object

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

Field Detail

relation

protected final Relation<O> relation

The representation we are bound to.

Constructor Detail

AbstractIndex

public AbstractIndex(Relation<O> relation)

Constructor.

Parameters:

relation - Relation indexed

Method Detail

getLongName

public abstract String getLongName()

Description copied from interface: Result

A "pretty" name for the result, for use in titles, captions and menus.

Specified by:

getLongName in interface Result

Returns:

result name

getShortName

public abstract String getShortName()

Description copied from interface: Result

A short name for the result, useful for file names.

Specified by:

getShortName in interface Result

Returns:

result name

getPageFileStatistics

public PageFileStatistics getPageFileStatistics()

Description copied from interface: Index

Get the underlying page file (or a proxy), for access counts.

Specified by:

getPageFileStatistics in interface Index

Returns:

page file

insert

public void insert(DBID id)

Description copied from interface: Index

Inserts the specified object into this index.

Specified by:

insert in interface Index

Parameters:

id - the object to be inserted

insertAll

public void insertAll(DBIDs ids)

Description copied from interface: Index

Inserts the specified objects into this index. If a bulk load mode is implemented, the objects are inserted in one bulk.

Specified by:

insertAll in interface Index

Parameters:

ids - the objects to be inserted

delete

public boolean delete(DBID id)

Description copied from interface: Index

Deletes the specified object from this index.

Specified by:

delete in interface Index

Parameters:

id - Object to remove

Returns:

true if this index did contain the object, false otherwise

deleteAll

public void deleteAll(DBIDs id)

Description copied from interface: Index

Deletes the specified objects from this index.

Specified by:

deleteAll in interface Index

Parameters:

id - Objects to remove