Package opennlp.tools.formats

Class TwentyNewsgroupSampleStream

java.lang.Object

opennlp.tools.formats.TwentyNewsgroupSampleStream

All Implemented Interfaces:

AutoCloseable, ObjectStream<DocumentSample>

public class TwentyNewsgroupSampleStream
extends Object
implements ObjectStream<DocumentSample>

An ObjectStream implementation for the Twenty Newsgroups text corpus.

The document collection was created and donated by: Tom Mitchell, School of Computer Science, Carnegie Mellon University.

Details and the data can be found via this DOI: 10.24432/C5C323.

Method Summary

Modifier and Type	Method	Description
DocumentSample	read()	Returns the next ObjectStream object.
void	reset()	Repositions the stream at the beginning and the previously seen object sequence will be repeated exactly.

Methods inherited from class java.lang.Object

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

Methods inherited from interface opennlp.tools.util.ObjectStream

close

Method Details

read

public DocumentSample read()
                    throws IOException

Description copied from interface: ObjectStream

Returns the next ObjectStream object. Calling this method repeatedly until it returns null will return each object from the underlying source exactly once.

Specified by:

read in interface ObjectStream<DocumentSample>

Returns:

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

Throws:

IOException - Thrown if there is an error during reading.

reset

public void reset()
           throws IOException,
UnsupportedOperationException

Description copied from interface: ObjectStream

Repositions the stream at the beginning and the previously seen object sequence will be repeated exactly. This method can be used to re-read the stream if multiple passes over the objects are required.

The implementation of this method is optional.

Specified by:

reset in interface ObjectStream<DocumentSample>

Throws:

IOException - Thrown if there is an error during resetting the stream.

UnsupportedOperationException - Thrown if the reset() is not supported. By default, this is the case.