Package opennlp.tools.postag

Class DefaultPOSSequenceValidator

java.lang.Object

opennlp.tools.postag.DefaultPOSSequenceValidator

All Implemented Interfaces:

SequenceValidator<String>

public class DefaultPOSSequenceValidator
extends Object
implements SequenceValidator<String>

The default POS tagger SequenceValidator implementation.

Constructor Summary

Constructors

Constructor	Description
DefaultPOSSequenceValidator(TagDictionary tagDictionary)

Method Summary

Modifier and Type	Method	Description
boolean	validSequence(int i, String[] inputSequence, String[] outcomesSequence, String outcome)	Determines whether a particular continuation of a sequence is valid.

Methods inherited from class java.lang.Object

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

Constructor Details

DefaultPOSSequenceValidator

public DefaultPOSSequenceValidator(TagDictionary tagDictionary)

Parameters:

tagDictionary - A TagDictionary used for the new SequenceValidator.

Method Details

validSequence

public boolean validSequence(int i,
 String[] inputSequence,
 String[] outcomesSequence,
 String outcome)

Description copied from interface: SequenceValidator

Determines whether a particular continuation of a sequence is valid. This is used to restrict invalid sequences such as those used in start/continue tag-based chunking or could be used to implement tag dictionary restrictions.

Specified by:

validSequence in interface SequenceValidator<String>

Parameters:

i - The index in the inputSequence for which the new outcome is being proposed.

inputSequence - The input sequence of SequenceValidator.

outcomesSequence - The outcomes so far in this sequence.

outcome - The next proposed outcome for the outcomes sequence.

Returns:

true if the sequence would still be valid with the new outcome, false otherwise.