public static class TreeReaderFactory.StructTreeReader extends TreeReaderFactory.TreeReader
TypeReader.ReaderCategory, TypeReader.ReadPhase
Modifier and Type | Field and Description |
---|---|
TypeReader[] |
fields |
columnId, context, present, readerCategory
Modifier | Constructor and Description |
---|---|
protected |
StructTreeReader(int columnId,
InStream present,
TreeReaderFactory.Context context,
OrcProto.ColumnEncoding encoding,
TypeReader[] childReaders) |
protected |
StructTreeReader(int columnId,
TypeDescription readerSchema,
TreeReaderFactory.Context context) |
Modifier and Type | Method and Description |
---|---|
TypeReader[] |
getChildReaders() |
void |
nextVector(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.
|
void |
seek(PositionProvider[] index,
TypeReader.ReadPhase readPhase)
Seek to the given position.
|
void |
seek(PositionProvider index,
TypeReader.ReadPhase readPhase) |
void |
skipRows(long items,
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 final TypeReader[] fields
protected StructTreeReader(int columnId, TypeDescription readerSchema, TreeReaderFactory.Context context) throws IOException
IOException
protected StructTreeReader(int columnId, InStream present, TreeReaderFactory.Context context, OrcProto.ColumnEncoding encoding, TypeReader[] childReaders) throws IOException
IOException
public TypeReader[] getChildReaders()
public void seek(PositionProvider[] index, TypeReader.ReadPhase readPhase) throws IOException
TreeReaderFactory.TreeReader
seek
in interface TypeReader
seek
in class TreeReaderFactory.TreeReader
index
- the indexes loaded from the filereadPhase
- the current readPhaseIOException
public void seek(PositionProvider index, TypeReader.ReadPhase readPhase) throws IOException
seek
in interface TypeReader
seek
in class TreeReaderFactory.TreeReader
IOException
public void nextVector(ColumnVector previousVector, boolean[] isNull, int batchSize, org.apache.hadoop.hive.ql.io.filter.FilterContext filterContext, TypeReader.ReadPhase readPhase) throws IOException
TreeReaderFactory.TreeReader
nextVector
in interface TypeReader
nextVector
in class TreeReaderFactory.TreeReader
previousVector
- 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.batchSize
- Size of the column vectorfilterContext
- the information about the rows that were selected
by the filter.readPhase
- The read levelIOException
public void startStripe(StripePlanner planner, TypeReader.ReadPhase readPhase) throws IOException
startStripe
in interface TypeReader
startStripe
in class TreeReaderFactory.TreeReader
IOException
public void skipRows(long items, TypeReader.ReadPhase readPhase) throws IOException
IOException
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