it.unipd.dei.ims.circo.lucene
Class LuceneDocumentEmitter

java.lang.Object
  it.unipd.dei.ims.circo.indexing.AbstractDocumentEmitter<D>
      it.unipd.dei.ims.circo.indexing.BaseDocumentEmitter<D>
          it.unipd.dei.ims.circo.indexing.CircoDocumentEmitter<org.apache.lucene.document.Document>
              it.unipd.dei.ims.circo.lucene.LuceneDocumentEmitter

All Implemented Interfaces:

DocumentEmitter<org.apache.lucene.document.Document>, java.lang.Iterable<org.apache.lucene.document.Document>, java.util.Iterator<org.apache.lucene.document.Document>

public class LuceneDocumentEmitter
extends CircoDocumentEmitter<org.apache.lucene.document.Document>
implements DocumentEmitter<org.apache.lucene.document.Document>

Provides an implementation of the DocumentEmitter interface for Lucene.

Since:

0.10

Version:

0.10

Author:

Nicola Ferro

Field Summary

Fields inherited from class it.unipd.dei.ims.circo.indexing.AbstractDocumentEmitter

logger

Constructor Summary

LuceneDocumentEmitter(java.io.File inputDirectory, boolean compressed, CircoAnalyzer ca)
Creates a new Lucene document emitter.

LuceneDocumentEmitter(java.lang.String inputDirectory, boolean compressed, CircoAnalyzer ca)
Creates a new Lucene document emitter.

Method Summary

protected org.apache.lucene.document.Document

toDocument(Resource r) Maps a Resource to a document.

Methods inherited from class it.unipd.dei.ims.circo.indexing.CircoDocumentEmitter

close, hasNext, next

Methods inherited from class it.unipd.dei.ims.circo.indexing.BaseDocumentEmitter

endStreamChunk, getCurrentInputFile, getCurrentStreamChunk, getInputDirectory, hasNextResource, isCompressed, nextResource, startStreamChunk

Methods inherited from class it.unipd.dei.ims.circo.indexing.AbstractDocumentEmitter

equals, getIdentifier, hashCode, iterator, remove, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface it.unipd.dei.ims.circo.indexing.DocumentEmitter

close, getIdentifier, getInputDirectory, isCompressed

Methods inherited from interface java.lang.Iterable

iterator

Methods inherited from interface java.util.Iterator

hasNext, next, remove

Constructor Detail

LuceneDocumentEmitter

public LuceneDocumentEmitter(java.io.File inputDirectory,
                             boolean compressed,
                             CircoAnalyzer ca)

Creates a new Lucene document emitter.

Parameters:

inputDirectory - the directory where stream chunks are stored.

compressed - indicates whether the stream chunks are compressed or not.

ca - the CIRCO analyzer to be used for generating token streams.

LuceneDocumentEmitter

public LuceneDocumentEmitter(java.lang.String inputDirectory,
                             boolean compressed,
                             CircoAnalyzer ca)

Creates a new Lucene document emitter.

Parameters:

inputDirectory - the directory where stream chunks are stored.

compressed - indicates whether the stream chunks are compressed or not.

ca - the CIRCO analyzer to be used for generating token streams.

Method Detail

toDocument

protected org.apache.lucene.document.Document toDocument(Resource r)
                                                  throws it.unipd.dei.ims.ici.component.ComponentException

Description copied from class: CircoDocumentEmitter

Maps a Resource to a document.

Specified by:

toDocument in class CircoDocumentEmitter<org.apache.lucene.document.Document>

Parameters:

r - the resource to be mapped.

Returns:

the document corresponding to the given resource.

Throws:

it.unipd.dei.ims.ici.component.ComponentException - if something goes wrong while adding the document.