Package elki.datasource.filter.selection

Class FirstNStreamFilter

java.lang.Object

elki.datasource.filter.AbstractStreamFilter

elki.datasource.filter.selection.FirstNStreamFilter

All Implemented Interfaces:

elki.datasource.bundle.BundleStreamSource, elki.datasource.filter.ObjectFilter, elki.datasource.filter.StreamFilter

public class FirstNStreamFilter
extends AbstractStreamFilter

Keep only the first N elements of the data source.

Since:

0.7.5

Author:

Erich Schubert

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	FirstNStreamFilter.Par	Parameterization class

Nested classes/interfaces inherited from interface elki.datasource.bundle.BundleStreamSource

elki.datasource.bundle.BundleStreamSource.Event

Field Summary

Fields

Modifier and Type	Field	Description
protected int	n	Remaining entries to keep

Fields inherited from class elki.datasource.filter.AbstractStreamFilter

source

Constructor Summary

Constructors

Constructor	Description
FirstNStreamFilter(int n)	Constructor.

Method Summary

Modifier and Type	Method	Description
java.lang.Object	data(int rnum)
elki.datasource.bundle.BundleMeta	getMeta()
elki.datasource.bundle.BundleStreamSource.Event	nextEvent()

Methods inherited from class elki.datasource.filter.AbstractStreamFilter

asMultipleObjectsBundle, assignDBID, filter, hasDBIDs, init, toString

Methods inherited from class java.lang.Object

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

Field Detail

n

protected int n

Remaining entries to keep

Constructor Detail

FirstNStreamFilter

public FirstNStreamFilter(int n)

Constructor.

Parameters:

n - number of entries to keep

Method Detail

getMeta

public elki.datasource.bundle.BundleMeta getMeta()

data

public java.lang.Object data(int rnum)

nextEvent

public elki.datasource.bundle.BundleStreamSource.Event nextEvent()