impala::RowBatchList Class Reference

#include <row-batch-list.h>

Collaboration diagram for impala::RowBatchList:

Classes
class	TupleRowIterator
	A simple iterator used to scan over all the rows stored in the list. More...

Public Member Functions
	RowBatchList ()
void	AddRowBatch (RowBatch *row_batch)
void	Reset ()
	Resets the list. More...
std::string	DebugString (const RowDescriptor &desc)
	Outputs a debug string containing the contents of the list. More...
int64_t	total_num_rows ()
	Returns the total number of rows in all row batches. More...
TupleRowIterator	Iterator ()
	Returns a new iterator over all the tuple rows. More...

Private Attributes
std::vector< RowBatch * >	row_batches_
int64_t	total_num_rows_
	Total number of rows. More...

Friends
class	TupleRowIterator

Detailed Description

A simple list structure for RowBatches that provides an interface for iterating over the TupleRows.

Definition at line 34 of file row-batch-list.h.

Constructor & Destructor Documentation

impala::RowBatchList::RowBatchList ( )

inline

Definition at line 36 of file row-batch-list.h.

Member Function Documentation

void impala::RowBatchList::AddRowBatch ( RowBatch *  row_batch )

inline

Add the 'row_batch' to the list. The RowBatch* and all of its resources are owned by the caller.

Definition at line 81 of file row-batch-list.h.

References impala::RowBatch::num_rows(), row_batches_, and total_num_rows_.

Referenced by impala::CrossJoinNode::ConstructBuildSide(), and impala::TEST_F().

std::string impala::RowBatchList::DebugString ( const RowDescriptor &  desc )

inline

Outputs a debug string containing the contents of the list.

Definition at line 94 of file row-batch-list.h.

References impala::RowBatchList::TupleRowIterator::AtEnd(), impala::RowBatchList::TupleRowIterator::GetRow(), Iterator(), impala::RowBatchList::TupleRowIterator::Next(), impala::PrintRow(), and total_num_rows_.

Referenced by impala::CrossJoinNode::BuildListDebugString().

TupleRowIterator impala::RowBatchList::Iterator ( )

inline

Returns a new iterator over all the tuple rows.

Definition at line 111 of file row-batch-list.h.

References TupleRowIterator.

Referenced by DebugString(), impala::RowBatchListTest::FullScan(), impala::CrossJoinNode::InitGetNext(), impala::CrossJoinNode::ProcessLeftChildBatch(), and impala::TEST_F().

void impala::RowBatchList::Reset ( )

inline

Resets the list.

Definition at line 88 of file row-batch-list.h.

References row_batches_, and total_num_rows_.

Referenced by impala::CrossJoinNode::Close(), and impala::CrossJoinNode::Reset().

int64_t impala::RowBatchList::total_num_rows ( )

inline

Returns the total number of rows in all row batches.

Definition at line 108 of file row-batch-list.h.

References total_num_rows_.

Referenced by impala::CrossJoinNode::ConstructBuildSide(), and impala::TEST_F().

Friends And Related Function Documentation

friend class TupleRowIterator

friend

Definition at line 116 of file row-batch-list.h.

Referenced by Iterator().

Member Data Documentation

std::vector<RowBatch*> impala::RowBatchList::row_batches_

private

Definition at line 118 of file row-batch-list.h.

Referenced by AddRowBatch(), impala::RowBatchList::TupleRowIterator::AtEnd(), impala::RowBatchList::TupleRowIterator::Next(), and Reset().

int64_t impala::RowBatchList::total_num_rows_

private

Total number of rows.

Definition at line 121 of file row-batch-list.h.

Referenced by AddRowBatch(), DebugString(), Reset(), and total_num_rows().

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The documentation for this class was generated from the following file:

• be/src/exec/row-batch-list.h