org.apache.mahout.utils.vectors.io

Class SequenceFileVectorWriter

java.lang.Object

org.apache.mahout.utils.vectors.io.SequenceFileVectorWriter

All Implemented Interfaces:

Closeable, AutoCloseable, VectorWriter

public class SequenceFileVectorWriter
extends Object
implements VectorWriter

Writes out Vectors to a SequenceFile. Closes the writer when done

Constructor Summary

Constructors

Constructor and Description
SequenceFileVectorWriter(org.apache.hadoop.io.SequenceFile.Writer writer)

Method Summary

Methods

Modifier and Type	Method and Description
void	close()
org.apache.hadoop.io.SequenceFile.Writer	getWriter()
long	write(Iterable<Vector> iterable) Write all values in the Iterable to the output
long	write(Iterable<Vector> iterable, long maxDocs) Write the first maxDocs to the output.
void	write(Vector vector) Write out a vector

Methods inherited from class java.lang.Object

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

Constructor Detail

SequenceFileVectorWriter

public SequenceFileVectorWriter(org.apache.hadoop.io.SequenceFile.Writer writer)

Method Detail

write

public long write(Iterable<Vector> iterable,
         long maxDocs)
           throws IOException

Description copied from interface: VectorWriter

Write the first maxDocs to the output.

Specified by:

write in interface VectorWriter

Parameters:

iterable - The Iterable to loop over

maxDocs - the maximum number of docs to write

Returns:

The number of docs written

Throws:

IOException - if there was a problem writing

write

public void write(Vector vector)
           throws IOException

Description copied from interface: VectorWriter

Write out a vector

Specified by:

write in interface VectorWriter

Parameters:

vector - The Vector to write

Throws:

IOException

write

public long write(Iterable<Vector> iterable)
           throws IOException

Description copied from interface: VectorWriter

Write all values in the Iterable to the output

Specified by:

write in interface VectorWriter

Parameters:

iterable - The Iterable to loop over

Returns:

the number of docs written

Throws:

IOException - if there was a problem writing

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException

getWriter

public org.apache.hadoop.io.SequenceFile.Writer getWriter()