org.apache.flink.orc

Class OrcColumnarRowSplitReader<BATCH>

java.lang.Object

org.apache.flink.orc.OrcSplitReader<RowData,BATCH>

org.apache.flink.orc.OrcColumnarRowSplitReader<BATCH>

All Implemented Interfaces:

Closeable, AutoCloseable

public class OrcColumnarRowSplitReader<BATCH>
extends OrcSplitReader<RowData,BATCH>

OrcSplitReader to read ORC files into RowData.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	OrcColumnarRowSplitReader.ColumnBatchGenerator<BATCH> Interface to gen VectorizedColumnBatch.

Field Summary

Fields inherited from class org.apache.flink.orc.OrcSplitReader

nextRow, rowBatchWrapper

Constructor Summary

Constructors

Constructor and Description
OrcColumnarRowSplitReader(OrcShim<BATCH> shim, org.apache.hadoop.conf.Configuration conf, org.apache.orc.TypeDescription schema, int[] selectedFields, OrcColumnarRowSplitReader.ColumnBatchGenerator<BATCH> batchGenerator, List<OrcFilters.Predicate> conjunctPredicates, int batchSize, Path path, long splitStart, long splitLength)

Method Summary

Modifier and Type	Method and Description
protected int	fillRows() Fills an ORC batch into an array of Row.
RowData	nextRecord(RowData reuse) Reads the next record from the input.

Methods inherited from class org.apache.flink.orc.OrcSplitReader

close, getRecordReader, reachedEnd, seekToRow

Methods inherited from class java.lang.Object

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

Constructor Detail

OrcColumnarRowSplitReader

public OrcColumnarRowSplitReader(OrcShim<BATCH> shim,
                                 org.apache.hadoop.conf.Configuration conf,
                                 org.apache.orc.TypeDescription schema,
                                 int[] selectedFields,
                                 OrcColumnarRowSplitReader.ColumnBatchGenerator<BATCH> batchGenerator,
                                 List<OrcFilters.Predicate> conjunctPredicates,
                                 int batchSize,
                                 Path path,
                                 long splitStart,
                                 long splitLength)
                          throws IOException

Throws:

IOException

Method Detail

fillRows

protected int fillRows()

Description copied from class: OrcSplitReader

Fills an ORC batch into an array of Row.

Specified by:

fillRows in class OrcSplitReader<RowData,BATCH>

Returns:

The number of rows that were filled.

nextRecord

public RowData nextRecord(RowData reuse)

Description copied from class: OrcSplitReader

Reads the next record from the input.

Specified by:

nextRecord in class OrcSplitReader<RowData,BATCH>

Parameters:

reuse - Object that may be reused.

Returns:

Read record.