org.apache.orc.impl

Class ConvertTreeReaderFactory.ConvertTreeReader

java.lang.Object

org.apache.orc.impl.TreeReaderFactory.TreeReader

org.apache.orc.impl.ConvertTreeReaderFactory.ConvertTreeReader

Direct Known Subclasses:

ConvertTreeReaderFactory.AnyIntegerFromAnyIntegerTreeReader, ConvertTreeReaderFactory.AnyIntegerFromDecimalTreeReader, ConvertTreeReaderFactory.AnyIntegerFromDoubleTreeReader, ConvertTreeReaderFactory.AnyIntegerFromFloatTreeReader, ConvertTreeReaderFactory.AnyIntegerFromStringGroupTreeReader, ConvertTreeReaderFactory.AnyIntegerFromTimestampTreeReader, ConvertTreeReaderFactory.AnyIntegerTreeReader, ConvertTreeReaderFactory.BinaryFromStringGroupTreeReader, ConvertTreeReaderFactory.DateFromStringGroupTreeReader, ConvertTreeReaderFactory.DateFromTimestampTreeReader, ConvertTreeReaderFactory.DecimalFromAnyIntegerTreeReader, ConvertTreeReaderFactory.DecimalFromDecimalTreeReader, ConvertTreeReaderFactory.DecimalFromDoubleTreeReader, ConvertTreeReaderFactory.DecimalFromFloatTreeReader, ConvertTreeReaderFactory.DecimalFromStringGroupTreeReader, ConvertTreeReaderFactory.DecimalFromTimestampTreeReader, ConvertTreeReaderFactory.DoubleFromAnyIntegerTreeReader, ConvertTreeReaderFactory.DoubleFromDecimalTreeReader, ConvertTreeReaderFactory.DoubleFromFloatTreeReader, ConvertTreeReaderFactory.DoubleFromStringGroupTreeReader, ConvertTreeReaderFactory.DoubleFromTimestampTreeReader, ConvertTreeReaderFactory.FloatFromAnyIntegerTreeReader, ConvertTreeReaderFactory.FloatFromDecimalTreeReader, ConvertTreeReaderFactory.FloatFromDoubleTreeReader, ConvertTreeReaderFactory.FloatFromStringGroupTreeReader, ConvertTreeReaderFactory.FloatFromTimestampTreeReader, ConvertTreeReaderFactory.StringGroupFromAnyIntegerTreeReader, ConvertTreeReaderFactory.StringGroupFromBinaryTreeReader, ConvertTreeReaderFactory.StringGroupFromDateTreeReader, ConvertTreeReaderFactory.StringGroupFromDecimalTreeReader, ConvertTreeReaderFactory.StringGroupFromDoubleTreeReader, ConvertTreeReaderFactory.StringGroupFromFloatTreeReader, ConvertTreeReaderFactory.StringGroupFromStringGroupTreeReader, ConvertTreeReaderFactory.StringGroupFromTimestampTreeReader, ConvertTreeReaderFactory.TimestampFromAnyIntegerTreeReader, ConvertTreeReaderFactory.TimestampFromDateTreeReader, ConvertTreeReaderFactory.TimestampFromDecimalTreeReader, ConvertTreeReaderFactory.TimestampFromDoubleTreeReader, ConvertTreeReaderFactory.TimestampFromFloatTreeReader, ConvertTreeReaderFactory.TimestampFromStringGroupTreeReader

Enclosing class:

ConvertTreeReaderFactory

public static class ConvertTreeReaderFactory.ConvertTreeReader
extends TreeReaderFactory.TreeReader

Override methods like checkEncoding to pass-thru to the convert TreeReader.

Field Summary

Fields inherited from class org.apache.orc.impl.TreeReaderFactory.TreeReader

columnId, context, present, vectorColumnCount

Method Summary

Modifier and Type	Method and Description
protected void	assignStringGroupVectorEntry(BytesColumnVector bytesColVector, int elementNum, TypeDescription readerType, byte[] bytes)
protected void	assignStringGroupVectorEntry(BytesColumnVector bytesColVector, int elementNum, TypeDescription readerType, byte[] bytes, int start, int length)
protected void	convertStringGroupVectorElement(BytesColumnVector bytesColVector, int elementNum, TypeDescription readerType)
void	convertVector(ColumnVector fromColVector, ColumnVector resultColVector, int batchSize)
boolean	doubleCanFitInLong(double doubleValue)
void	downCastAnyInteger(LongColumnVector longColVector, int elementNum, long inputLong, TypeDescription readerType)
void	downCastAnyInteger(LongColumnVector longColVector, int elementNum, TypeDescription readerType)
protected boolean	getIsParseError()
protected TreeReaderFactory.TreeReader	getStringGroupTreeReader(int columnId, TypeDescription fileType, TreeReaderFactory.Context context)
protected boolean	integerDownCastNeeded(TypeDescription fileType, TypeDescription readerType)
protected Date	parseDateFromString(String string)
protected HiveDecimal	parseDecimalFromString(String string)
protected double	parseDoubleFromString(String string)
protected float	parseFloatFromString(String string)
protected long	parseLongFromString(String string)
protected Timestamp	parseTimestampFromString(String string)
void	seek(PositionProvider index)
void	seek(PositionProvider[] index) Seek to the given position.
protected void	setConvertTreeReader(TreeReaderFactory.TreeReader convertTreeReader)
void	setConvertVectorElement(int elementNum) Override this to use convertVector.
protected String	stringFromBytesColumnVectorEntry(BytesColumnVector bytesColVector, int elementNum)

Methods inherited from class org.apache.orc.impl.TreeReaderFactory.TreeReader

countNonNulls, createIntegerReader, getColumnId, getPresent, nextBatch, nextVector

Methods inherited from class java.lang.Object

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

Method Detail

setConvertTreeReader

protected void setConvertTreeReader(TreeReaderFactory.TreeReader convertTreeReader)

getStringGroupTreeReader

protected TreeReaderFactory.TreeReader getStringGroupTreeReader(int columnId,
                                                                TypeDescription fileType,
                                                                TreeReaderFactory.Context context)
                                                         throws IOException

Throws:

IOException

assignStringGroupVectorEntry

protected void assignStringGroupVectorEntry(BytesColumnVector bytesColVector,
                                            int elementNum,
                                            TypeDescription readerType,
                                            byte[] bytes)

assignStringGroupVectorEntry

protected void assignStringGroupVectorEntry(BytesColumnVector bytesColVector,
                                            int elementNum,
                                            TypeDescription readerType,
                                            byte[] bytes,
                                            int start,
                                            int length)

convertStringGroupVectorElement

protected void convertStringGroupVectorElement(BytesColumnVector bytesColVector,
                                               int elementNum,
                                               TypeDescription readerType)

getIsParseError

protected boolean getIsParseError()

parseLongFromString

protected long parseLongFromString(String string)

parseFloatFromString

protected float parseFloatFromString(String string)

parseDoubleFromString

protected double parseDoubleFromString(String string)

parseDecimalFromString

protected HiveDecimal parseDecimalFromString(String string)

Parameters:

string -

Returns:

the HiveDecimal parsed, or null if there was a parse error.

parseTimestampFromString

protected Timestamp parseTimestampFromString(String string)

Parameters:

string -

Returns:

the Timestamp parsed, or null if there was a parse error.

parseDateFromString

protected Date parseDateFromString(String string)

Parameters:

string -

Returns:

the Date parsed, or null if there was a parse error.

stringFromBytesColumnVectorEntry

protected String stringFromBytesColumnVectorEntry(BytesColumnVector bytesColVector,
                                                  int elementNum)

doubleCanFitInLong

public boolean doubleCanFitInLong(double doubleValue)

seek

public void seek(PositionProvider[] index)
          throws IOException

Description copied from class: TreeReaderFactory.TreeReader

Seek to the given position.

Overrides:

seek in class TreeReaderFactory.TreeReader

Parameters:

index - the indexes loaded from the file

Throws:

IOException

seek

public void seek(PositionProvider index)
          throws IOException

Overrides:

seek in class TreeReaderFactory.TreeReader

Throws:

IOException

setConvertVectorElement

public void setConvertVectorElement(int elementNum)
                             throws IOException

Override this to use convertVector. Source and result are member variables in the subclass with the right type.

Parameters:

elementNum -

Throws:

IOException

convertVector

public void convertVector(ColumnVector fromColVector,
                          ColumnVector resultColVector,
                          int batchSize)
                   throws IOException

Throws:

IOException

downCastAnyInteger

public void downCastAnyInteger(LongColumnVector longColVector,
                               int elementNum,
                               TypeDescription readerType)

downCastAnyInteger

public void downCastAnyInteger(LongColumnVector longColVector,
                               int elementNum,
                               long inputLong,
                               TypeDescription readerType)

integerDownCastNeeded

protected boolean integerDownCastNeeded(TypeDescription fileType,
                                        TypeDescription readerType)