org.egothor.store
Class ThickBarrelIn

java.lang.Object
  org.egothor.store.ThickBarrelIn

All Implemented Interfaces:

BarrelReader

public class ThickBarrelIn
extends java.lang.Object
implements BarrelReader

The ThickBarrelIn object is a core implementation of a Barrel that has document's metadata stored in Documents class and inverted list's metadata in Terms. This object defines a Barrel that stores its inverted lists in a single file.

Author:

Leo Galambos

Field Summary

java.lang.String	location The directory where is the barrel stored.
protected ProximitiesFileIn	rf

Constructor Summary

protected

ThickBarrelIn(java.lang.String location, Bitmap map, Documents docs, Terms terms)

Method Summary

void	close() Close the DB files.
SequenceWithClose<DocumentData>	getDocuments() Return an enumeration containing stored metadata of documents.
SequenceWithClose<IListReader>	getILists() Returns an enumeration of inverted lists.
long	length() Return the number of active (not deleted) documents.
void	rewind() Restart this BarrelReader so that the documents can be read again.

Methods inherited from class java.lang.Object

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

Field Detail

location

public java.lang.String location

The directory where is the barrel stored.

rf

protected ProximitiesFileIn rf

Constructor Detail

ThickBarrelIn

protected ThickBarrelIn(java.lang.String location,
                        Bitmap map,
                        Documents docs,
                        Terms terms)
                 throws java.io.IOException

Throws:

java.io.IOException

Method Detail

getDocuments

public SequenceWithClose<DocumentData> getDocuments()

Return an enumeration containing stored metadata of documents.

Specified by:

getDocuments in interface BarrelReader

Returns:

an Enumeration of document metadata

getILists

public SequenceWithClose<IListReader> getILists()

Returns an enumeration of inverted lists.

Specified by:

getILists in interface BarrelReader

Returns:

an Enumeration of inverted lists

length

public long length()

Return the number of active (not deleted) documents.

Specified by:

length in interface BarrelReader

Returns:

the number of active documents

close

public void close()

Close the DB files.

Specified by:

close in interface BarrelReader

rewind

public void rewind()
            throws java.io.IOException

Restart this BarrelReader so that the documents can be read again.

Specified by:

rewind in interface BarrelReader

Throws:

java.io.IOException