Package ai.rapids.cudf

Class DeletionVector.ParquetChunkedReader

java.lang.Object

ai.rapids.cudf.DeletionVector.ParquetChunkedReader

All Implemented Interfaces:

AutoCloseable

Enclosing class:

DeletionVector

public static class DeletionVector.ParquetChunkedReader
extends Object
implements AutoCloseable

Method Summary

Modifier and Type	Method	Description
void	close()
boolean	hasNext()	Check if the given file has anything left to read.
Table	readChunk()	Read a chunk of rows in the given Parquet file such that the returning data has total size does not exceed the given read limit.

Methods inherited from class java.lang.Object

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

Method Details

hasNext

public boolean hasNext()

Check if the given file has anything left to read.

Returns:

A boolean value indicating if there is more data to read from file.

readChunk

public Table readChunk()

Read a chunk of rows in the given Parquet file such that the returning data has total size does not exceed the given read limit. If the given file has no data, or all data has been read before by previous calls to this function, a null Table will be returned.

Returns:

A table of new rows reading from the given file.

close

public void close()
           throws Exception

Specified by:

close in interface AutoCloseable

Throws:

Exception