Package org.apache.sysds.runtime.io

Class FrameWriterParquet

java.lang.Object

org.apache.sysds.runtime.io.FrameWriter

org.apache.sysds.runtime.io.FrameWriterParquet

Direct Known Subclasses:

FrameWriterParquetParallel

public class FrameWriterParquet
extends FrameWriter

Single-threaded frame parquet writer.

Constructor Summary

Constructors

Constructor	Description
FrameWriterParquet()

Method Summary

Modifier and Type	Method	Description
final void	writeFrameToHDFS(FrameBlock src, String fname, long rlen, long clen)	Writes a FrameBlock to a Parquet file on HDFS.

Methods inherited from class org.apache.sysds.runtime.io.FrameWriter

setForcedParallel

Methods inherited from class java.lang.Object

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

Constructor Details

FrameWriterParquet

public FrameWriterParquet()

Method Details

writeFrameToHDFS

public final void writeFrameToHDFS(FrameBlock src,
 String fname,
 long rlen,
 long clen)
                            throws IOException,
DMLRuntimeException

Writes a FrameBlock to a Parquet file on HDFS.

Specified by:

writeFrameToHDFS in class FrameWriter

Parameters:

src - The FrameBlock containing the data to write.

fname - The HDFS file path where the Parquet file will be stored.

rlen - The expected number of rows.

clen - The expected number of columns.

Throws:

IOException

DMLRuntimeException