opennlp.tools.postag

Class WordTagSampleStream

java.lang.Object

opennlp.tools.util.FilterObjectStream<String,POSSample>

opennlp.tools.postag.WordTagSampleStream

All Implemented Interfaces:

ObjectStream<POSSample>

public class WordTagSampleStream
extends FilterObjectStream<String,POSSample>

A stream filter which reads a sentence per line which contains words and tags in word_tag format and outputs a POSSample objects.

Field Summary

Fields inherited from class opennlp.tools.util.FilterObjectStream

samples

Constructor Summary

Constructors

Constructor and Description
WordTagSampleStream(ObjectStream<String> sentences)
WordTagSampleStream(Reader sentences) Initializes the current instance.

Method Summary

Modifier and Type	Method and Description
POSSample	read() Parses the next sentence and return the next POSSample object.

Methods inherited from class opennlp.tools.util.FilterObjectStream

close, reset

Methods inherited from class java.lang.Object

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

Constructor Detail

WordTagSampleStream

public WordTagSampleStream(Reader sentences)
                    throws IOException

Initializes the current instance.

Parameters:

sentences - reader with sentences

Throws:

IOException - IOException

WordTagSampleStream

public WordTagSampleStream(ObjectStream<String> sentences)

Method Detail

read

public POSSample read()
               throws IOException

Parses the next sentence and return the next POSSample object. If an error occurs an empty POSSample object is returned and an warning message is logged. Usually it does not matter if one of many sentences is ignored. TODO: An exception in error case should be thrown.

Returns:

the next object or null to signal that the stream is exhausted

Throws:

IOException