org.grouplens.lenskit.data.dao.packed

Class BinaryRatingPacker

java.lang.Object

org.grouplens.lenskit.data.dao.packed.BinaryRatingPacker

All Implemented Interfaces:

Closeable, AutoCloseable

@NotThreadSafe
public class BinaryRatingPacker
extends Object
implements Closeable

Creates rating pack files for the BinaryRatingDAO.

Since:

2.1

Method Summary

Modifier and Type	Method and Description
void	close()
int	getRatingCount()
static BinaryRatingPacker	open(File file, BinaryFormatFlag... flags) Open a new binary rating packer.
static BinaryRatingPacker	open(File file, EnumSet<BinaryFormatFlag> flags) Open a new binary rating packer.
void	writeRating(Rating rating)
void	writeRatings(Iterable<? extends Rating> ratings)

Methods inherited from class java.lang.Object

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

Method Detail

open

public static BinaryRatingPacker open(File file,
                                      BinaryFormatFlag... flags)
                               throws IOException

Open a new binary rating packer.

Parameters:

file - The output file.

flags - The flags to use when creating the file.

Throws:

IOException - The output exception.

open

public static BinaryRatingPacker open(File file,
                                      EnumSet<BinaryFormatFlag> flags)
                               throws IOException

Open a new binary rating packer.

Parameters:

file - The output file.

flags - The flags to use when creating the file.

Throws:

IOException - The output exception.

writeRating

public void writeRating(Rating rating)
                 throws IOException

Throws:

IOException

writeRatings

public void writeRatings(Iterable<? extends Rating> ratings)
                  throws IOException

Throws:

IOException

getRatingCount

public int getRatingCount()

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException