Package org.apache.orc.impl

Class ColumnStatisticsImpl

java.lang.Object

org.apache.orc.impl.ColumnStatisticsImpl

All Implemented Interfaces:

ColumnStatistics

Direct Known Subclasses:

ColumnStatisticsImpl.BinaryStatisticsImpl, ColumnStatisticsImpl.StringStatisticsImpl

public class ColumnStatisticsImpl
extends Object
implements ColumnStatistics

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static final class	ColumnStatisticsImpl.BinaryStatisticsImpl
protected static final class	ColumnStatisticsImpl.StringStatisticsImpl

Field Summary

Fields

Modifier and Type	Field	Description
protected long	count

Method Summary

Modifier and Type	Method	Description
static ColumnStatisticsImpl	create(TypeDescription schema)
static ColumnStatisticsImpl	create(TypeDescription schema, boolean convertToProleptic)
static ColumnStatisticsImpl	deserialize(TypeDescription schema, OrcProto.ColumnStatistics stats)
static ColumnStatisticsImpl	deserialize(TypeDescription schema, OrcProto.ColumnStatistics stats, boolean writerUsedProlepticGregorian, boolean convertToProlepticGregorian)
boolean	equals(Object o)
long	getBytesOnDisk()	Get the number of bytes for this column.
long	getNumberOfValues()	Get the number of values in this column.
int	hashCode()
boolean	hasNull()	Returns true if there are nulls in the scope of column statistics.
void	increment()
void	increment(int count)
boolean	isStatsExists()
void	merge(ColumnStatisticsImpl stats)
void	reset()
OrcProto.ColumnStatistics.Builder	serialize()
void	setNull()
String	toString()
void	updateBinary(byte[] bytes, int offset, int length, int repetitions)
void	updateBinary(BytesWritable value)
void	updateBoolean(boolean value, int repetitions)
void	updateByteCount(long size)
void	updateCollectionLength(long value)	Update the collection length for Map and List type.
void	updateDate(int value)
void	updateDate(org.apache.hadoop.hive.serde2.io.DateWritable value)
void	updateDecimal(org.apache.hadoop.hive.serde2.io.HiveDecimalWritable value)
void	updateDecimal64(long value, int scale)
void	updateDouble(double value)
void	updateInteger(long value, int repetitions)
void	updateString(byte[] bytes, int offset, int length, int repetitions)
void	updateString(Text value)
void	updateTimestamp(long value, int nanos)
void	updateTimestamp(Timestamp value)

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

count

protected long count

Method Details

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

increment

public void increment()

increment

public void increment(int count)

updateByteCount

public void updateByteCount(long size)

setNull

public void setNull()

updateCollectionLength

public void updateCollectionLength(long value)

Update the collection length for Map and List type.

Parameters:

value - length of collection

updateBoolean

public void updateBoolean(boolean value,
 int repetitions)

updateInteger

public void updateInteger(long value,
 int repetitions)

updateDouble

public void updateDouble(double value)

updateString

public void updateString(Text value)

updateString

public void updateString(byte[] bytes,
 int offset,
 int length,
 int repetitions)

updateBinary

public void updateBinary(BytesWritable value)

updateBinary

public void updateBinary(byte[] bytes,
 int offset,
 int length,
 int repetitions)

updateDecimal

public void updateDecimal(org.apache.hadoop.hive.serde2.io.HiveDecimalWritable value)

updateDecimal64

public void updateDecimal64(long value,
 int scale)

updateDate

public void updateDate(org.apache.hadoop.hive.serde2.io.DateWritable value)

updateDate

public void updateDate(int value)

updateTimestamp

public void updateTimestamp(Timestamp value)

updateTimestamp

public void updateTimestamp(long value,
 int nanos)

isStatsExists

public boolean isStatsExists()

merge

public void merge(ColumnStatisticsImpl stats)

reset

public void reset()

getNumberOfValues

public long getNumberOfValues()

Description copied from interface: ColumnStatistics

Get the number of values in this column. It will differ from the number of rows because of NULL values and repeated values.

Specified by:

getNumberOfValues in interface ColumnStatistics

Returns:

the number of values

hasNull

public boolean hasNull()

Description copied from interface: ColumnStatistics

Returns true if there are nulls in the scope of column statistics.

Specified by:

hasNull in interface ColumnStatistics

Returns:

true if null present else false

getBytesOnDisk

public long getBytesOnDisk()

Get the number of bytes for this column.

Specified by:

getBytesOnDisk in interface ColumnStatistics

Returns:

the number of bytes

toString

public String toString()

Overrides:

toString in class Object

serialize

public OrcProto.ColumnStatistics.Builder serialize()

create

public static ColumnStatisticsImpl create(TypeDescription schema)

create

public static ColumnStatisticsImpl create(TypeDescription schema,
 boolean convertToProleptic)

deserialize

public static ColumnStatisticsImpl deserialize(TypeDescription schema,
 OrcProto.ColumnStatistics stats)

deserialize

public static ColumnStatisticsImpl deserialize(TypeDescription schema,
 OrcProto.ColumnStatistics stats,
 boolean writerUsedProlepticGregorian,
 boolean convertToProlepticGregorian)