org.apache.carbondata.presto

Class CarbonVectorBatch

java.lang.Object

org.apache.carbondata.presto.CarbonVectorBatch

public class CarbonVectorBatch
extends Object

Method Summary

Modifier and Type	Method and Description
static CarbonVectorBatch	allocate(org.apache.carbondata.core.metadata.datatype.StructField[] schema, org.apache.carbondata.presto.CarbonDictionaryDecodeReadSupport readSupport, boolean isDirectFill)
int	capacity() Returns the max capacity (in number of rows) for this batch.
org.apache.carbondata.core.scan.result.vector.impl.CarbonColumnVectorImpl	column(int ordinal) Returns the column at `ordinal`.
static org.apache.carbondata.core.scan.result.vector.impl.CarbonColumnVectorImpl	createDirectStreamReader(int batchSize, org.apache.carbondata.core.metadata.datatype.DataType dataType, org.apache.carbondata.core.metadata.datatype.StructField field, org.apache.carbondata.core.cache.dictionary.Dictionary dictionary)
int	numCols() Returns the number of columns that make up this batch.
int	numRows() Returns the number of rows for read, including filtered rows.
int	numValidRows() Returns the number of valid rows.
void	reset() Resets the batch for writing.
void	setNumRows(int numRows) Sets the number of rows that are valid.

Methods inherited from class java.lang.Object

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

Method Detail

allocate

public static CarbonVectorBatch allocate(org.apache.carbondata.core.metadata.datatype.StructField[] schema,
                                         org.apache.carbondata.presto.CarbonDictionaryDecodeReadSupport readSupport,
                                         boolean isDirectFill)

createDirectStreamReader

public static org.apache.carbondata.core.scan.result.vector.impl.CarbonColumnVectorImpl createDirectStreamReader(int batchSize,
                                                                                                                 org.apache.carbondata.core.metadata.datatype.DataType dataType,
                                                                                                                 org.apache.carbondata.core.metadata.datatype.StructField field,
                                                                                                                 org.apache.carbondata.core.cache.dictionary.Dictionary dictionary)

reset

public void reset()

Resets the batch for writing.

numCols

public int numCols()

Returns the number of columns that make up this batch.

setNumRows

public void setNumRows(int numRows)

Sets the number of rows that are valid. Additionally, marks all rows as "filtered" if one or more of their attributes are part of a non-nullable column.

numRows

public int numRows()

Returns the number of rows for read, including filtered rows.

numValidRows

public int numValidRows()

Returns the number of valid rows.

column

public org.apache.carbondata.core.scan.result.vector.impl.CarbonColumnVectorImpl column(int ordinal)

Returns the column at `ordinal`.

capacity

public int capacity()

Returns the max capacity (in number of rows) for this batch.