public static class TreeReaderFactory.NullTreeReader extends TreeReaderFactory.TreeReader
TypeReader.ReaderCategory, TypeReader.ReadPhase
columnId, context, present, readerCategory
Constructor and Description |
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NullTreeReader(int columnId,
TreeReaderFactory.Context context) |
Modifier and Type | Method and Description |
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void |
nextVector(ColumnVector vector,
boolean[] isNull,
int size,
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.
|
void |
seek(PositionProvider[] position,
TypeReader.ReadPhase readPhase)
Seek to the given position.
|
void |
seek(PositionProvider position,
TypeReader.ReadPhase readPhase) |
void |
skipRows(long rows,
TypeReader.ReadPhase readPhase) |
void |
startStripe(StripePlanner planner,
TypeReader.ReadPhase readPhase) |
checkEncoding, countNonNullRowsInRange, countNonNulls, createIntegerReader, getColumnId, getPresent, getReaderCategory
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
shouldProcessChild
public NullTreeReader(int columnId, TreeReaderFactory.Context context) throws IOException
IOException
public void startStripe(StripePlanner planner, TypeReader.ReadPhase readPhase)
startStripe
in interface TypeReader
startStripe
in class TreeReaderFactory.TreeReader
public void skipRows(long rows, TypeReader.ReadPhase readPhase)
public void seek(PositionProvider position, TypeReader.ReadPhase readPhase)
seek
in interface TypeReader
seek
in class TreeReaderFactory.TreeReader
public void seek(PositionProvider[] position, TypeReader.ReadPhase readPhase)
TreeReaderFactory.TreeReader
seek
in interface TypeReader
seek
in class TreeReaderFactory.TreeReader
position
- the indexes loaded from the filereadPhase
- the current readPhasepublic void nextVector(ColumnVector vector, boolean[] isNull, int size, org.apache.hadoop.hive.ql.io.filter.FilterContext filterContext, TypeReader.ReadPhase readPhase)
TreeReaderFactory.TreeReader
nextVector
in interface TypeReader
nextVector
in class TreeReaderFactory.TreeReader
vector
- The columnVector object whose isNull value is populatedisNull
- Whether the each value was null at a higher level. If
isNull is null, all values are non-null.size
- Size of the column vectorfilterContext
- the information about the rows that were selected
by the filter.readPhase
- The read levelCopyright © 2013–2022 The Apache Software Foundation. All rights reserved.