org.apache.drill.exec.store.parquet.columnreaders

Class VarLengthValuesColumn<V extends ValueVector>

java.lang.Object

org.apache.drill.exec.store.parquet.columnreaders.ColumnReader<V>

org.apache.drill.exec.store.parquet.columnreaders.VarLengthColumn

org.apache.drill.exec.store.parquet.columnreaders.VarLengthValuesColumn<V>

Direct Known Subclasses:

NullableVarLengthValuesColumn, VarLengthColumnReaders.Decimal28Column, VarLengthColumnReaders.Decimal38Column, VarLengthColumnReaders.VarBinaryColumn, VarLengthColumnReaders.VarCharColumn

public abstract class VarLengthValuesColumn<V extends ValueVector>
extends VarLengthColumn

Field Summary

Fields inherited from class org.apache.drill.exec.store.parquet.columnreaders.ColumnReader

vectorData

Method Summary

Methods

Modifier and Type	Method and Description
protected boolean	readAndStoreValueSizeInformation()
protected void	readField(long recordToRead)
abstract boolean	setSafe(int index, DrillBuf bytes, int start, int length)
boolean	skipReadyToReadPositionUpdate()
void	updatePosition()
void	updateReadyToReadPosition()

Methods inherited from class org.apache.drill.exec.store.parquet.columnreaders.VarLengthColumn

processPageData, reset

Methods inherited from class org.apache.drill.exec.store.parquet.columnreaders.ColumnReader

capacity, checkVectorCapacityReached, clear, determineSize, getRecordsReadInCurrentPass, hitRowGroupEnd, postPageRead, processPages, processPagesAsync, readIntLittleEndian, readPage, readPageAsync, readRecords, readRecordsAsync, readValues, totalValuesReadAndReadyToReadInPage

Methods inherited from class java.lang.Object

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

Method Detail

setSafe

public abstract boolean setSafe(int index,
              DrillBuf bytes,
              int start,
              int length)

readField

protected void readField(long recordToRead)

Specified by:

readField in class ColumnReader

updateReadyToReadPosition

public void updateReadyToReadPosition()

Overrides:

updateReadyToReadPosition in class ColumnReader

updatePosition

public void updatePosition()

Overrides:

updatePosition in class ColumnReader

skipReadyToReadPositionUpdate

public boolean skipReadyToReadPositionUpdate()

Specified by:

skipReadyToReadPositionUpdate in class VarLengthColumn

readAndStoreValueSizeInformation

protected boolean readAndStoreValueSizeInformation()
                                            throws IOException

Specified by:

readAndStoreValueSizeInformation in class VarLengthColumn

Throws:

IOException