Package org.apache.drill.exec.physical.rowSet

Class AbstractRowSet

java.lang.Object

org.apache.drill.exec.physical.rowSet.AbstractRowSet

All Implemented Interfaces:

RowSet

Direct Known Subclasses:

AbstractSingleRowSet, HyperRowSetImpl

public abstract class AbstractRowSet
extends Object
implements RowSet

Basic implementation of a row set for both the single and multiple (hyper) varieties, both the fixed and extensible varieties.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.drill.exec.physical.rowSet.RowSet

RowSet.ExtendableRowSet, RowSet.HyperRowSet, RowSet.HyperRowSetBuilder, RowSet.SingleRowSet

Field Summary

Fields

Modifier and Type	Field	Description
protected VectorContainer	container
protected TupleMetadata	schema

Constructor Summary

Constructors

Constructor	Description
AbstractRowSet(VectorContainer container, TupleMetadata schema)

Method Summary

Modifier and Type	Method	Description
BufferAllocator	allocator()
BatchSchema	batchSchema()
void	clear()
VectorContainer	container()
void	print()	Debug-only tool to visualize a row set for inspection.
int	rowCount()
TupleMetadata	schema()
long	size()	Return the size in memory of this record set, including indirection vectors, null vectors, offset vectors and the entire (used and unused) data vectors.
String	toString()
VectorAccessible	vectorAccessible()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.drill.exec.physical.rowSet.RowSet

indirectionType, isExtendable, isWritable, reader

Field Details

container

protected VectorContainer container

schema

protected TupleMetadata schema

Constructor Details

AbstractRowSet

public AbstractRowSet(VectorContainer container,
 TupleMetadata schema)

Method Details

vectorAccessible

public VectorAccessible vectorAccessible()

Specified by:

vectorAccessible in interface RowSet

container

public VectorContainer container()

Specified by:

container in interface RowSet

rowCount

public int rowCount()

Specified by:

rowCount in interface RowSet

clear

public void clear()

Specified by:

clear in interface RowSet

schema

public TupleMetadata schema()

Specified by:

schema in interface RowSet

allocator

public BufferAllocator allocator()

Specified by:

allocator in interface RowSet

toString

public String toString()

Overrides:

toString in class Object

print

public void print()

Description copied from interface: RowSet

Debug-only tool to visualize a row set for inspection. Do not use this in production code.

Specified by:

print in interface RowSet

size

public long size()

Description copied from interface: RowSet

Return the size in memory of this record set, including indirection vectors, null vectors, offset vectors and the entire (used and unused) data vectors.

Specified by:

size in interface RowSet

Returns:

memory size in bytes

batchSchema

public BatchSchema batchSchema()

Specified by:

batchSchema in interface RowSet