Package org.apache.orc.impl

Class ConvertTreeReaderFactory.FloatFromDoubleTreeReader

java.lang.Object

org.apache.orc.impl.TreeReaderFactory.TreeReader

org.apache.orc.impl.ConvertTreeReaderFactory.ConvertTreeReader

org.apache.orc.impl.ConvertTreeReaderFactory.FloatFromDoubleTreeReader

All Implemented Interfaces:

TypeReader

Enclosing class:

ConvertTreeReaderFactory

public static class ConvertTreeReaderFactory.FloatFromDoubleTreeReader
extends ConvertTreeReaderFactory.ConvertTreeReader

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	Description
void	nextVector(org.apache.hadoop.hive.ql.exec.vector.ColumnVector previousVector, boolean[] isNull, int batchSize, org.apache.hadoop.hive.ql.io.filter.FilterContext filterContext, TypeReader.ReadPhase readPhase)	Populates the isNull vector array in the previousVector object based on the present stream values.

Methods inherited from class org.apache.orc.impl.ConvertTreeReaderFactory.ConvertTreeReader

assignStringGroupVectorEntry, assignStringGroupVectorEntry, checkEncoding, convertStringGroupVectorElement, convertVector, doubleCanFitInLong, downCastAnyInteger, downCastAnyInteger, getIsParseError, integerDownCastNeeded, parseDecimalFromString, parseDoubleFromString, parseFloatFromString, parseLongFromString, seek, seek, setConvertVectorElement, skipRows, startStripe

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

countNonNullRowsInRange, countNonNulls, createIntegerReader, getColumnId, getPresent, getReaderCategory

Methods inherited from class java.lang.Object

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

Method Details

nextVector

public void nextVector(org.apache.hadoop.hive.ql.exec.vector.ColumnVector previousVector,
 boolean[] isNull,
 int batchSize,
 org.apache.hadoop.hive.ql.io.filter.FilterContext filterContext,
 TypeReader.ReadPhase readPhase)
                throws IOException

Description copied from class: TreeReaderFactory.TreeReader

Populates the isNull vector array in the previousVector object based on the present stream values. This function is called from all the child readers, and they all set the values based on isNull field value.

Specified by:

nextVector in interface TypeReader

Overrides:

nextVector in class TreeReaderFactory.TreeReader

Parameters:

previousVector - The columnVector object whose isNull value is populated

isNull - Whether the each value was null at a higher level. If isNull is null, all values are non-null.

batchSize - Size of the column vector

filterContext - the information about the rows that were selected by the filter.

readPhase - The read level

Throws:

IOException