dragon.ml.seqmodel.feature

Class FeatureTypeWindow

java.lang.Object

dragon.ml.seqmodel.feature.AbstractFeatureTypeWrapper

dragon.ml.seqmodel.feature.FeatureTypeWindow

All Implemented Interfaces:

FeatureType

public class FeatureTypeWindow
extends AbstractFeatureTypeWrapper

Window feature type

Copyright: Copyright (c) 2005

Company: IST, Drexel University

Version:

1.0

Author:

Davis Zhou

Field Summary

Fields

Modifier and Type	Field and Description
protected int	currentWindow
protected DataSequence	dataSeq
protected int	endPos
protected int	startPos
protected Window[]	windows

Fields inherited from class dragon.ml.seqmodel.feature.AbstractFeatureTypeWrapper

ftype

Constructor Summary

Constructors

Constructor and Description
FeatureTypeWindow(Window[] windows, FeatureType ftype)

Method Summary

Modifier and Type	Method and Description
protected boolean	advance(boolean firstCall)
boolean	hasNext() Tests if next feature exists
Feature	next() Gets the next feature
boolean	startScanFeaturesAt(DataSequence data, int startPos, int endPos) Starts scanning features of the given segment of a sequence

Methods inherited from class dragon.ml.seqmodel.feature.AbstractFeatureTypeWrapper

getTypeID, needTraining, readTrainingResult, saveTrainingResult, setTypeID, supportSegment, train

Methods inherited from class java.lang.Object

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

Field Detail

currentWindow

protected int currentWindow

startPos

protected int startPos

endPos

protected int endPos

dataSeq

protected transient DataSequence dataSeq

windows

protected Window[] windows

Constructor Detail

FeatureTypeWindow

public FeatureTypeWindow(Window[] windows,
                         FeatureType ftype)

Method Detail

advance

protected boolean advance(boolean firstCall)

startScanFeaturesAt

public boolean startScanFeaturesAt(DataSequence data,
                                   int startPos,
                                   int endPos)

Description copied from interface: FeatureType

Starts scanning features of the given segment of a sequence

Specified by:

startScanFeaturesAt in interface FeatureType

Overrides:

startScanFeaturesAt in class AbstractFeatureTypeWrapper

Parameters:

data - the sequence

startPos - the start position of the segment

endPos - the end position of the segment

Returns:

true if successfully

hasNext

public boolean hasNext()

Description copied from interface: FeatureType

Tests if next feature exists

Specified by:

hasNext in interface FeatureType

Overrides:

hasNext in class AbstractFeatureTypeWrapper

Returns:

true if next feature exists

next

public Feature next()

Description copied from interface: FeatureType

Gets the next feature

Specified by:

next in interface FeatureType

Overrides:

next in class AbstractFeatureTypeWrapper

Returns:

the next feature if any