Vertica::VerticaBlock Class Reference

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

Inheritance diagram for Vertica::VerticaBlock:

Collaboration diagram for Vertica::VerticaBlock:

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<class T >
T *	getColPtrForWrite (size_t idx)
template<class T >
const T &	getColRef (size_t idx)
template<class T >
T &	getColRefForWrite (size_t idx)
int	getColStride (size_t idx) const
const EE::DataArea *	getDataArea (size_t idx)
size_t	getNumCols () const
int	getNumRows () const
const SizedColumnTypes &	getTypeMetaData () const
SizedColumnTypes &	getTypeMetaData ()
void *	getVoidPtr ()
void	setDataArea (size_t idx, void *dataarea)

Protected Member Functions
void	addCol (char *arg, int colstride, const VerticaType &dt, const std::string fieldName="")
void	addCol (const char *arg, int colstride, const VerticaType &dt, const std::string fieldName="")
bool	checkStringUserBlockInfo (size_t idx) const
bool	checkTimeUserBlockInfo (size_t idx) const
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
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::UserDefinedAggregate
class	::EE::UserDefinedAnalytic
class	::EE::UserDefinedProcess
class	::EE::UserDefinedTransform
class	AggregateFunction
struct	CPPExecContext
class	VerticaBlockSerializer

Detailed Description

: Represents an in-memory block of tuples

Member Function Documentation

void Vertica::VerticaBlock::addCol ( char *  arg, int  colstride, const VerticaType &  dt, const std::string  fieldName = ""  )

inlineprotected

Add the location for reading a particular argument.

Parameters

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

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

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);
* 

Referenced by Vertica::PartitionWriter::copyFromInput().

template<class T >

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

inline

Returns

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

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

size_t Vertica::VerticaBlock::getNumCols ( ) const

inline

Returns

the number of columns held by this block.

Referenced by Vertica::BlockReader::isNull().

int Vertica::VerticaBlock::getNumRows ( ) const

inline

Returns

the number of rows held by this block.

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

inline

Returns

information about the types and numbers of arguments

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

SizedColumnTypes& Vertica::VerticaBlock::getTypeMetaData ( )

inline

Returns

information about the types and numbers of arguments