com.aliasi.corpus

Class Corpus<H extends Handler>

java.lang.Object

com.aliasi.corpus.Corpus<H>

Type Parameters:

H - the type of handler to which this corpus sends events

Direct Known Subclasses:

DiskCorpus, ListCorpus, XValidatingObjectCorpus

public class Corpus<H extends Handler>
extends Object

The Corpus abstract class provides a basis for passing training and testing data to data handlers. The methods walk handlers over the training and/or test data, depending on which of the methods is called.

Since:

LingPipe2.3

Version:

3.0

Author:

Bob Carpenter

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Corpus() Construct a corpus.

Method Summary

Methods

Modifier and Type	Method and Description
void	visitCorpus(H handler) Visit the entire corpus, sending all extracted events to the specified handler.
void	visitCorpus(H trainHandler, H testHandler) Visit the entire corpus, first sending training events to the specified training handler and then sending testing events to the test handler.
void	visitTest(H handler) Visit the testing section of the corpus, sending events to the specified handler.
void	visitTrain(H handler) Visit the training section of the corpus, sending events to the specified handler.

Methods inherited from class java.lang.Object

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

Constructor Detail

Corpus

protected Corpus()

Construct a corpus.

Method Detail

visitCorpus

public void visitCorpus(H handler)
                 throws IOException

Visit the entire corpus, sending all extracted events to the specified handler.

This is just a convenience method that is defined by:

 visitCorpus(handler,handler);
 

Parameters:

handler - Handler for events extracted from the corpus.

Throws:

IOException - If there is an underlying I/O error.

visitCorpus

public void visitCorpus(H trainHandler,
               H testHandler)
                 throws IOException

Visit the entire corpus, first sending training events to the specified training handler and then sending testing events to the test handler.

This is just a convenience method that is defined by:

 visitTrain(trainHandler);
 visitTest(testHandler);
 

Parameters:

trainHandler - Handler for training events from the corpus.

testHandler - Handler for testing events from the corpus.

Throws:

IOException - If there is an underlying I/O error.

visitTrain

public void visitTrain(H handler)
                throws IOException

Visit the training section of the corpus, sending events to the specified handler.

The implementation does nothing. This method should be overridden by subclasses that contain training data.

Parameters:

handler - Handler for training events.

Throws:

IOException - If there is an underlying I/O error.

visitTest

public void visitTest(H handler)
               throws IOException

Visit the testing section of the corpus, sending events to the specified handler.

The implementation does nothing. This method should be overridden by subclasses that contain test data.

Parameters:

handler - Handler for training events.

Throws:

IOException - If there is an underlying I/O error.