com.facebook.hive.orc.lazy

Class LazyFloatTreeReader

java.lang.Object

com.facebook.hive.orc.lazy.LazyTreeReader

com.facebook.hive.orc.lazy.LazyFloatTreeReader

public class LazyFloatTreeReader
extends LazyTreeReader

Field Summary

Fields inherited from class com.facebook.hive.orc.lazy.LazyTreeReader

columnId, previousPresentRow, previousRow, previousRowIndexEntry, rowBaseInStripe, rowIndexStride, valuePresent

Constructor Summary

Constructors

Constructor and Description
LazyFloatTreeReader(int columnId, long rowIndexStride)

Method Summary

Modifier and Type	Method and Description
void	close()
Object	createWritableFromLatest(Object previous) When a client asks for a writable object after materializing a primitive, create a writable from previous value read from stream.
int	loadIndeces(List<OrcProto.RowIndexEntry> rowIndexEntries, int startIndex) Read any indeces that will be needed and return a startIndex after the values that have been read.
Object	next(Object previous) Should only be called from within the tree reader once it's been checked that the next object isn't null
float	nextFloat(boolean readStream) Give the next float as a primitive.
void	seek(int index)
void	skipRows(long numNonNullValues) Should only be called from within the tree reader once numNonNulls has been set correctly
void	startStripe(Map<StreamName,InStream> streams, List<OrcProto.ColumnEncoding> encodings, OrcProto.RowIndex[] indexes, long rowBaseInStripe)

Methods inherited from class com.facebook.hive.orc.lazy.LazyTreeReader

computeRowIndexEntry, countNonNulls, get, getBoolean, getDouble, getFloat, getInComplexType, getInt, getLong, getShort, nextBoolean, nextDouble, nextInt, nextIsNull, nextIsNullInComplexType, nextLong, nextShort, seek, seekToPresentRow, seekToRow, skipRowsInComplexType

Methods inherited from class java.lang.Object

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

Constructor Detail

LazyFloatTreeReader

public LazyFloatTreeReader(int columnId,
                           long rowIndexStride)

Method Detail

startStripe

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

Overrides:

startStripe in class LazyTreeReader

Throws:

IOException

seek

public void seek(int index)
          throws IOException

Specified by:

seek in class LazyTreeReader

Throws:

IOException

loadIndeces

public int loadIndeces(List<OrcProto.RowIndexEntry> rowIndexEntries,
                       int startIndex)

Description copied from class: LazyTreeReader

Read any indeces that will be needed and return a startIndex after the values that have been read.

Overrides:

loadIndeces in class LazyTreeReader

createWritableFromLatest

public Object createWritableFromLatest(Object previous)
                                throws IOException

Description copied from class: LazyTreeReader

When a client asks for a writable object after materializing a primitive, create a writable from previous value read from stream.

Overrides:

createWritableFromLatest in class LazyTreeReader

Throws:

IOException

nextFloat

public float nextFloat(boolean readStream)
                throws IOException,
                       OrcLazyObject.ValueNotPresentException

Give the next float as a primitive.

Overrides:

nextFloat in class LazyTreeReader

Throws:

IOException

OrcLazyObject.ValueNotPresentException

next

public Object next(Object previous)
            throws IOException

Description copied from class: LazyTreeReader

Should only be called from within the tree reader once it's been checked that the next object isn't null

Specified by:

next in class LazyTreeReader

Returns:

Throws:

IOException

skipRows

public void skipRows(long numNonNullValues)
              throws IOException

Description copied from class: LazyTreeReader

Should only be called from within the tree reader once numNonNulls has been set correctly

Specified by:

skipRows in class LazyTreeReader

Throws:

IOException

close

public void close()
           throws IOException

Overrides:

close in class LazyTreeReader

Throws:

IOException