org.apache.orc.impl

Class ConvertTreeReaderFactory.ConvertTreeReader

java.lang.Object

org.apache.orc.impl.TreeReaderFactory.TreeReader

org.apache.orc.impl.ConvertTreeReaderFactory.ConvertTreeReader

All Implemented Interfaces:

TypeReader

Direct Known Subclasses:

ConvertTreeReaderFactory.AnyIntegerFromAnyIntegerTreeReader, ConvertTreeReaderFactory.AnyIntegerFromDecimalTreeReader, ConvertTreeReaderFactory.AnyIntegerFromDoubleTreeReader, ConvertTreeReaderFactory.AnyIntegerFromStringGroupTreeReader, ConvertTreeReaderFactory.AnyIntegerFromTimestampTreeReader, ConvertTreeReaderFactory.DateFromStringGroupTreeReader, ConvertTreeReaderFactory.DateFromTimestampTreeReader, ConvertTreeReaderFactory.DecimalFromAnyIntegerTreeReader, ConvertTreeReaderFactory.DecimalFromDecimalTreeReader, ConvertTreeReaderFactory.DecimalFromDoubleTreeReader, ConvertTreeReaderFactory.DecimalFromStringGroupTreeReader, ConvertTreeReaderFactory.DecimalFromTimestampTreeReader, ConvertTreeReaderFactory.DoubleFromAnyIntegerTreeReader, ConvertTreeReaderFactory.DoubleFromDecimalTreeReader, ConvertTreeReaderFactory.DoubleFromStringGroupTreeReader, ConvertTreeReaderFactory.DoubleFromTimestampTreeReader, ConvertTreeReaderFactory.FloatFromDoubleTreeReader, ConvertTreeReaderFactory.StringGroupFromAnyIntegerTreeReader, ConvertTreeReaderFactory.StringGroupFromBinaryTreeReader, ConvertTreeReaderFactory.StringGroupFromDateTreeReader, ConvertTreeReaderFactory.StringGroupFromDecimalTreeReader, ConvertTreeReaderFactory.StringGroupFromDoubleTreeReader, ConvertTreeReaderFactory.StringGroupFromStringGroupTreeReader, ConvertTreeReaderFactory.StringGroupFromTimestampTreeReader, ConvertTreeReaderFactory.TimestampFromAnyIntegerTreeReader, ConvertTreeReaderFactory.TimestampFromDateTreeReader, ConvertTreeReaderFactory.TimestampFromDecimalTreeReader, ConvertTreeReaderFactory.TimestampFromDoubleTreeReader, ConvertTreeReaderFactory.TimestampFromStringGroupTreeReader

Enclosing class:

ConvertTreeReaderFactory

public static class ConvertTreeReaderFactory.ConvertTreeReader
extends TreeReaderFactory.TreeReader

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

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.orc.impl.reader.tree.TypeReader

TypeReader.ReaderCategory, TypeReader.ReadPhase

Field Summary

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

columnId, context, present, readerCategory

Method Summary

Modifier and Type	Method and Description
protected void	assignStringGroupVectorEntry(org.apache.hadoop.hive.ql.exec.vector.BytesColumnVector bytesColVector, int elementNum, TypeDescription readerType, byte[] bytes)
protected void	assignStringGroupVectorEntry(org.apache.hadoop.hive.ql.exec.vector.BytesColumnVector bytesColVector, int elementNum, TypeDescription readerType, byte[] bytes, int start, int length)
void	checkEncoding(OrcProto.ColumnEncoding encoding)
protected void	convertStringGroupVectorElement(org.apache.hadoop.hive.ql.exec.vector.BytesColumnVector bytesColVector, int elementNum, TypeDescription readerType)
void	convertVector(org.apache.hadoop.hive.ql.exec.vector.ColumnVector fromColVector, org.apache.hadoop.hive.ql.exec.vector.ColumnVector resultColVector, int batchSize)
boolean	doubleCanFitInLong(double doubleValue)
void	downCastAnyInteger(org.apache.hadoop.hive.ql.exec.vector.LongColumnVector longColVector, int elementNum, long inputLong, TypeDescription readerType)
void	downCastAnyInteger(org.apache.hadoop.hive.ql.exec.vector.LongColumnVector longColVector, int elementNum, TypeDescription readerType)
protected boolean	getIsParseError()
protected boolean	integerDownCastNeeded(TypeDescription fileType, TypeDescription readerType)
protected org.apache.hadoop.hive.common.type.HiveDecimal	parseDecimalFromString(String string)
protected double	parseDoubleFromString(String string)
protected float	parseFloatFromString(String string)
protected long	parseLongFromString(String string)
void	seek(PositionProvider[] index, TypeReader.ReadPhase readPhase) Seek to the given position.
void	seek(PositionProvider index, TypeReader.ReadPhase readPhase)
void	setConvertVectorElement(int elementNum) Override this to use convertVector.
void	skipRows(long items, TypeReader.ReadPhase readPhase)
void	startStripe(StripePlanner planner, TypeReader.ReadPhase readPhase)

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

countNonNullRowsInRange, countNonNulls, createIntegerReader, getColumnId, getPresent, getReaderCategory, nextVector

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.orc.impl.reader.tree.TypeReader

shouldProcessChild

Method Detail

assignStringGroupVectorEntry

protected void assignStringGroupVectorEntry(org.apache.hadoop.hive.ql.exec.vector.BytesColumnVector bytesColVector,
                                            int elementNum,
                                            TypeDescription readerType,
                                            byte[] bytes)

assignStringGroupVectorEntry

protected void assignStringGroupVectorEntry(org.apache.hadoop.hive.ql.exec.vector.BytesColumnVector bytesColVector,
                                            int elementNum,
                                            TypeDescription readerType,
                                            byte[] bytes,
                                            int start,
                                            int length)

convertStringGroupVectorElement

protected void convertStringGroupVectorElement(org.apache.hadoop.hive.ql.exec.vector.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 org.apache.hadoop.hive.common.type.HiveDecimal parseDecimalFromString(String string)

Parameters:

string -

Returns:

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

doubleCanFitInLong

public boolean doubleCanFitInLong(double doubleValue)

checkEncoding

public void checkEncoding(OrcProto.ColumnEncoding encoding)
                   throws IOException

Specified by:

checkEncoding in interface TypeReader

Overrides:

checkEncoding in class TreeReaderFactory.TreeReader

Throws:

IOException

startStripe

public void startStripe(StripePlanner planner,
                        TypeReader.ReadPhase readPhase)
                 throws IOException

Specified by:

startStripe in interface TypeReader

Overrides:

startStripe in class TreeReaderFactory.TreeReader

Throws:

IOException

seek

public void seek(PositionProvider[] index,
                 TypeReader.ReadPhase readPhase)
          throws IOException

Description copied from class: TreeReaderFactory.TreeReader

Seek to the given position.

Specified by:

seek in interface TypeReader

Overrides:

seek in class TreeReaderFactory.TreeReader

Parameters:

index - the indexes loaded from the file

readPhase - the current readPhase

Throws:

IOException

seek

public void seek(PositionProvider index,
                 TypeReader.ReadPhase readPhase)
          throws IOException

Specified by:

seek in interface TypeReader

Overrides:

seek in class TreeReaderFactory.TreeReader

Throws:

IOException

skipRows

public void skipRows(long items,
                     TypeReader.ReadPhase readPhase)
              throws IOException

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(org.apache.hadoop.hive.ql.exec.vector.ColumnVector fromColVector,
                          org.apache.hadoop.hive.ql.exec.vector.ColumnVector resultColVector,
                          int batchSize)
                   throws IOException

Throws:

IOException

downCastAnyInteger

public void downCastAnyInteger(org.apache.hadoop.hive.ql.exec.vector.LongColumnVector longColVector,
                               int elementNum,
                               TypeDescription readerType)

downCastAnyInteger

public void downCastAnyInteger(org.apache.hadoop.hive.ql.exec.vector.LongColumnVector longColVector,
                               int elementNum,
                               long inputLong,
                               TypeDescription readerType)

integerDownCastNeeded

protected boolean integerDownCastNeeded(TypeDescription fileType,
                                        TypeDescription readerType)