org.apache.paimon.format.parquet.reader

Class BooleanColumnReader

java.lang.Object

org.apache.paimon.format.parquet.reader.AbstractColumnReader<WritableBooleanVector>

org.apache.paimon.format.parquet.reader.BooleanColumnReader

All Implemented Interfaces:

ColumnReader<WritableBooleanVector>

public class BooleanColumnReader
extends AbstractColumnReader<WritableBooleanVector>

Boolean ColumnReader.

Field Summary

Fields inherited from class org.apache.paimon.format.parquet.reader.AbstractColumnReader

descriptor, dictionary, maxDefLevel

Constructor Summary

Constructors

Constructor and Description
BooleanColumnReader(org.apache.parquet.column.ColumnDescriptor descriptor, org.apache.parquet.column.page.PageReadStore pageReadStore)

Method Summary

Modifier and Type	Method and Description
protected void	afterReadPage() After read a page, we may need some initialization.
protected void	readBatch(int rowId, int num, WritableBooleanVector column) Read batch from AbstractColumnReader.runLenDecoder and AbstractColumnReader.dataInputStream.
protected void	readBatchFromDictionaryIds(int rowId, int num, WritableBooleanVector column, WritableIntVector dictionaryIds) Decode dictionary ids to data.
protected void	skipBatch(int num)

Methods inherited from class org.apache.paimon.format.parquet.reader.AbstractColumnReader

checkTypeName, readToVector, supportLazyDecode

Methods inherited from class java.lang.Object

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

Constructor Detail

BooleanColumnReader

public BooleanColumnReader(org.apache.parquet.column.ColumnDescriptor descriptor,
                           org.apache.parquet.column.page.PageReadStore pageReadStore)
                    throws IOException

Throws:

IOException

Method Detail

afterReadPage

protected void afterReadPage()

Description copied from class: AbstractColumnReader

After read a page, we may need some initialization.

Overrides:

afterReadPage in class AbstractColumnReader<WritableBooleanVector>

readBatchFromDictionaryIds

protected void readBatchFromDictionaryIds(int rowId,
                                          int num,
                                          WritableBooleanVector column,
                                          WritableIntVector dictionaryIds)

Description copied from class: AbstractColumnReader

Decode dictionary ids to data. From AbstractColumnReader.runLenDecoder and AbstractColumnReader.dictionaryIdsDecoder.

Specified by:

readBatchFromDictionaryIds in class AbstractColumnReader<WritableBooleanVector>

readBatch

protected void readBatch(int rowId,
                         int num,
                         WritableBooleanVector column)

Description copied from class: AbstractColumnReader

Read batch from AbstractColumnReader.runLenDecoder and AbstractColumnReader.dataInputStream.

Specified by:

readBatch in class AbstractColumnReader<WritableBooleanVector>

skipBatch

protected void skipBatch(int num)

Specified by:

skipBatch in class AbstractColumnReader<WritableBooleanVector>