Package opennlp.tools.doccat

Class DocumentSampleStream

java.lang.Object

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

opennlp.tools.doccat.DocumentSampleStream

All Implemented Interfaces:

AutoCloseable, ObjectStream<DocumentSample>

public class DocumentSampleStream
extends FilterObjectStream<String,DocumentSample>

Reads in string encoded training samples, parses them and outputs DocumentSample objects.

Format:
Each line contains one sample document.
The category is the first string in the line followed by a tab and whitespace separated document tokens.

Sample line: category-string tab-char whitespace-separated-tokens line-break-char(s)

See Also:

• DocumentSample

Constructor Summary

Constructors

Constructor	Description
DocumentSampleStream(ObjectStream<String> samples)	Initializes a instance.

Method Summary

Modifier and Type	Method	Description
DocumentSample	read()	Returns the next ObjectStream object.

Methods inherited from class opennlp.tools.util.FilterObjectStream

close, reset

Methods inherited from class java.lang.Object

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

Constructor Details

DocumentSampleStream

public DocumentSampleStream(ObjectStream<String> samples)

Initializes a instance.

Parameters:

samples - A plain text line stream.

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.

Returns:

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

Throws:

IOException - Thrown if there is an error during reading.