dragon.ir.index.sentence
Class AbstractSentenceIndexer

java.lang.Object
  |
  +--dragon.ir.index.sentence.AbstractSentenceIndexer

All Implemented Interfaces:

Indexer

Direct Known Subclasses:

BasicSentenceIndexer, DualSentenceIndexer, OnlineSentenceIndexer

public abstract class AbstractSentenceIndexer

extends java.lang.Object

implements Indexer

The abstract indexder for sentence level indexing

Copyright: Copyright (c) 2005

Company: IST, Drexel University

Version:

1.0

Author:

Davis Zhou

Field Summary

protected boolean	initialized
protected DocumentParser	parser

Constructor Summary

AbstractSentenceIndexer(DocumentParser parser)

Method Summary

void	close() This method releases occupied resources.
protected Document	getDocument(Article article)
int	getMinSentenceLength()
protected java.lang.String	getSentenceKey(java.lang.String docKey, int sentIndex)
boolean	index(Article article) An article has many sections such as title, abstract and body.
abstract boolean	index(Sentence sent, java.lang.String sentKey)
boolean	indexed(java.lang.String docKey)
boolean	screenArticleContent(boolean useTitle, boolean useAbstract, boolean useBody)
void	setLog(java.lang.String logFile)
void	setMinSentenceLength(int minLength)
protected void	writeLog(java.lang.String content)

Methods inherited from class java.lang.Object

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

Methods inherited from interface dragon.ir.index.Indexer

initialize

Field Detail

initialized

protected boolean initialized

parser

protected DocumentParser parser

Constructor Detail

AbstractSentenceIndexer

public AbstractSentenceIndexer(DocumentParser parser)

Method Detail

index

public abstract boolean index(Sentence sent,
                              java.lang.String sentKey)

setMinSentenceLength

public void setMinSentenceLength(int minLength)

getMinSentenceLength

public int getMinSentenceLength()

screenArticleContent

public boolean screenArticleContent(boolean useTitle,
                                    boolean useAbstract,
                                    boolean useBody)

setLog

public void setLog(java.lang.String logFile)

Specified by:

setLog in interface Indexer

indexed

public boolean indexed(java.lang.String docKey)

Specified by:

indexed in interface Indexer

Parameters:

docKey - the unique document entry number

Returns:

true if this document has been indexed

index

public boolean index(Article article)

Description copied from interface: Indexer

An article has many sections such as title, abstract and body. The selection of sections for indexing is subject to the implemented indexers.

Specified by:

index in interface Indexer

Parameters:

article - the article for indexing

Returns:

true if indexed successfully

getDocument

protected Document getDocument(Article article)

getSentenceKey

protected java.lang.String getSentenceKey(java.lang.String docKey,
                                          int sentIndex)

writeLog

protected void writeLog(java.lang.String content)

close

public void close()

Description copied from interface: Indexer

This method releases occupied resources.

Specified by:

close in interface Indexer