Vertica::VerticaBlock Class Reference

: Represents an in-memory block of tuples More...

Inheritance diagram for Vertica::VerticaBlock:

Collaboration diagram for Vertica::VerticaBlock:

Classes
struct	NestedBlockPtr

Public Member Functions
	VerticaBlock (size_t ncols, int rowcount, const int *indices)
void	copy (const VerticaBlock &other)
template<class T >
const T *	getColPtr (size_t idx) const
template<>
const VString *	getColPtr (size_t idx) const
template<>
const VNumeric *	getColPtr (size_t idx) const
template<>
const VUuid *	getColPtr (size_t idx) const
template<>
const BlockReader *	getColPtr (size_t idx) const
template<class T >
T *	getColPtrForWrite (size_t idx)
template<>
VString *	getColPtrForWrite (size_t idx)
template<>
VNumeric *	getColPtrForWrite (size_t idx)
template<>
VUuid *	getColPtrForWrite (size_t idx)
template<>
BlockWriter *	getColPtrForWrite (size_t idx)
template<class T >
const T &	getColRef (size_t idx) const
template<class T >
T &	getColRefForWrite (size_t idx)
int	getColStride (size_t idx) const
const EE::DataArea *	getDataArea (size_t idx) const
size_t	getNumCols () const
int	getNumRows () const
const SizedColumnTypes &	getTypeMetaData () const
SizedColumnTypes &	getTypeMetaData ()
void *	getVoidPtr (size_t idx=0)
const void *	getVoidPtr (size_t idx=0) const
bool	remaining () const
virtual void	resetForDataAreaFlush ()
void	setDataArea (size_t idx, void *dataarea)

Protected Member Functions
void	addCol (char *arg, int colstride, const Field &field)
void	addCol (const char *arg, int colstride, const Field &field)
bool	checkStringUserBlockInfo (size_t idx) const
bool	checkTimeUserBlockInfo (size_t idx) const
EE::DataArea **	getArrayIntermediateDataArea (size_t c)
void	reset ()
void	resetIndex ()
void	setRowCount (int rowCount)
void	validateStringColumn (size_t idx, const VString &s, size_t colLength) const

Protected Attributes
std::vector< char * >	cols
std::vector< int >	colstrides
int	count
std::vector< NestedBlockPtr >	ctWrappers
int	index
const int *	indices
size_t	ncols
int	nrows
std::vector< BaseDataOID >	processBlockUserInfoVector
std::vector< VString >	svWrappers
SizedColumnTypes	typeMetaData
std::vector< VUuid >	uuWrappers
std::vector< VNumeric >	vnWrappers

Friends
class	::EE::Loader::OrcParser
class	::EE::Loader::ParquetParser
class	::EE::MVExprSupport
class	::EE::UserDefinedAggregate
class	::EE::UserDefinedAnalytic
class	::EE::UserDefinedProcess
class	::EE::UserDefinedTransform
class	::EE::VEval
class	AggregateFunction
class	Array::BlockSaver
struct	CPPExecContext
class	VerticaBlockSerializer

Detailed Description

: Represents an in-memory block of tuples

Member Function Documentation

addCol()

void Vertica::VerticaBlock::addCol ( char *  arg, int  colstride, const Field &  field  )

protected

Add the location for reading a particular argument.

Parameters

arg	The base location to find data.
colstride	The stride between data instances.
field	metadata for the added column
dt	The type of input.
fieldname	the name of the field

Referenced by Vertica::ParamReader::addParameter().

getArrayIntermediateDataArea()

EE::DataArea** Vertica::VerticaBlock::getArrayIntermediateDataArea ( size_t  c )

inlineprotected

Returns

a pointer to a DataArea for accumulating an intermediate result

getColPtr()

template<class T >

const T* Vertica::VerticaBlock::getColPtr ( size_t  idx ) const

inline

Returns

a pointer to the idx'th argument, cast appropriately.

Example:

const vint *a = arg_reader->getColPtr<vint>(0);

getColRef()

template<class T >

const T& Vertica::VerticaBlock::getColRef ( size_t  idx ) const

inline

Returns

a pointer to the idx'th argument, cast appropriately.

Example: const vint a = arg_reader->getColRef<vint>(0);

getNumCols()

size_t Vertica::VerticaBlock::getNumCols ( ) const

inline

Returns

the number of columns held by this block.

Referenced by Vertica::BlockWriter::copyFromInput(), Vertica::BlockReader::isNull(), and Vertica::BlockWriter::setNull().

getNumRows()

int Vertica::VerticaBlock::getNumRows ( ) const

inline

Returns

the number of rows held by this block.

getTypeMetaData() [1/2]

const SizedColumnTypes& Vertica::VerticaBlock::getTypeMetaData ( ) const

inline

Returns

information about the types and numbers of arguments

Referenced by Vertica::ParamReader::getType(), Vertica::BlockReader::isNull(), and Vertica::BlockWriter::setNull().

getTypeMetaData() [2/2]

SizedColumnTypes& Vertica::VerticaBlock::getTypeMetaData ( )

inline

Returns

information about the types and numbers of arguments

remaining()

bool Vertica::VerticaBlock::remaining ( ) const

inline

Returns

the number of entries remaining in the block

resetForDataAreaFlush()

virtual void Vertica::VerticaBlock::resetForDataAreaFlush ( )

inlinevirtual

Virtual method to be called when the Data Area fills up in a load. Should be called from the StreamWriter class.

Reimplemented in Vertica::StreamWriter.