com.facebook.hive.orc.lazy

Class OrcLazyObject

java.lang.Object

com.facebook.hive.orc.lazy.OrcLazyObject

All Implemented Interfaces:

org.apache.hadoop.io.Writable

Direct Known Subclasses:

OrcLazyBinary, OrcLazyBoolean, OrcLazyByte, OrcLazyDouble, OrcLazyFloat, OrcLazyInt, OrcLazyList, OrcLazyLong, OrcLazyMap, OrcLazyShort, OrcLazyString, OrcLazyStruct, OrcLazyTimestamp, OrcLazyUnion

public abstract class OrcLazyObject
extends Object
implements org.apache.hadoop.io.Writable

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static interface	OrcLazyObject.Materializer
protected static class	OrcLazyObject.ValueNotPresentException An exception to indicate null values when materializing primitives.

Field Summary

Fields

Modifier and Type	Field and Description
protected static OrcLazyObject.Materializer	booleanMaker
protected static OrcLazyObject.Materializer	doubleMaker
protected static OrcLazyObject.Materializer	floatMaker
protected static OrcLazyObject.Materializer	intMaker
protected static OrcLazyObject.Materializer	longMaker
protected Object	previous
protected static OrcLazyObject.Materializer	shortMaker

Constructor Summary

Constructors

Constructor and Description
OrcLazyObject(LazyTreeReader treeReader)
OrcLazyObject(OrcLazyObject copy)

Method Summary

Modifier and Type	Method and Description
void	close()
LazyTreeReader	getLazyTreeReader()
int	hashCode()
Object	materialize()
protected Object	materialize(long row, Object previous)
boolean	materializeBoolean()
double	materializeDouble()
float	materializeFloat()
void	materializeHelper(OrcLazyObject.Materializer maker)
int	materializeInt()
long	materializeLong()
short	materializeShort()
void	next()
boolean	nextIsNull()
void	readFields(DataInput dataInput)
void	seekToRow(long rowNumber)
void	startStripe(Map<StreamName,InStream> streams, List<OrcProto.ColumnEncoding> encodings, OrcProto.RowIndex[] indexes, long rowBaseInStripe)
void	write(DataOutput dataOutput)

Methods inherited from class java.lang.Object

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

Field Detail

previous

protected Object previous

doubleMaker

protected static final OrcLazyObject.Materializer doubleMaker

floatMaker

protected static final OrcLazyObject.Materializer floatMaker

booleanMaker

protected static final OrcLazyObject.Materializer booleanMaker

longMaker

protected static final OrcLazyObject.Materializer longMaker

intMaker

protected static final OrcLazyObject.Materializer intMaker

shortMaker

protected static final OrcLazyObject.Materializer shortMaker

Constructor Detail

OrcLazyObject

public OrcLazyObject(LazyTreeReader treeReader)

OrcLazyObject

public OrcLazyObject(OrcLazyObject copy)

Method Detail

write

public void write(DataOutput dataOutput)
           throws IOException

Specified by:

write in interface org.apache.hadoop.io.Writable

Throws:

IOException

readFields

public void readFields(DataInput dataInput)
                throws IOException

Specified by:

readFields in interface org.apache.hadoop.io.Writable

Throws:

IOException

getLazyTreeReader

public LazyTreeReader getLazyTreeReader()

materialize

public Object materialize()
                   throws IOException

Throws:

IOException

materialize

protected Object materialize(long row,
                             Object previous)
                      throws IOException

Throws:

IOException

materializeHelper

public void materializeHelper(OrcLazyObject.Materializer maker)
                       throws IOException

Throws:

IOException

materializeDouble

public double materializeDouble()
                         throws IOException

Throws:

IOException

materializeFloat

public float materializeFloat()
                       throws IOException

Throws:

IOException

materializeBoolean

public boolean materializeBoolean()
                           throws IOException

Throws:

IOException

materializeLong

public long materializeLong()
                     throws IOException

Throws:

IOException

materializeInt

public int materializeInt()
                   throws IOException

Throws:

IOException

materializeShort

public short materializeShort()
                       throws IOException

Throws:

IOException

next

public void next()

nextIsNull

public boolean nextIsNull()
                   throws IOException

Throws:

IOException

startStripe

public void startStripe(Map<StreamName,InStream> streams,
                        List<OrcProto.ColumnEncoding> encodings,
                        OrcProto.RowIndex[] indexes,
                        long rowBaseInStripe)
                 throws IOException

Throws:

IOException

seekToRow

public void seekToRow(long rowNumber)
               throws IOException

Throws:

IOException

hashCode

public int hashCode()

Overrides:

hashCode in class Object

close

public void close()
           throws IOException

Throws:

IOException