Provides read access to a set of named parameters. This class provides type-specific methods to retrieve values. More...

Inheritance diagram for Vertica::ParamReader:

Collaboration diagram for Vertica::ParamReader:

Public Member Functions
	ParamReader (size_t nparams)

void	addParameter (std::string paramName, const char *arg, const VerticaType &dt)

bool	containsParameter (std::string paramName) const
	Function to see if the ParamReader has a value for the parameter.

void	copy (const VerticaBlock &other)

void	copy (const ParamReader &other)
	Copy the other ParamReader. Discard any existing parameters TODO: create an alternate version that only copies if this ParamReader is empty, is a no-op if they are non-empty and the same, and error if they are non-empty and different.

const vbool *	getBoolPtr (std::string paramName) const
	Get a pointer to a BOOLEAN value from the input row. More...

const vbool &	getBoolRef (std::string paramName) const
	Get a reference to a BOOLEAN value from the input row. More...

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

const DateADT *	getDatePtr (std::string paramName) const
	Get a pointer to a DATE value from the input row. More...

const DateADT &	getDateRef (std::string paramName) const
	Get a reference to a DATE value from the input row. More...

const vfloat *	getFloatPtr (std::string paramName) const
	Get a pointer to a FLOAT value from the input row. More...

const vfloat &	getFloatRef (std::string paramName) const
	Get a reference to a FLOAT value from the input row. More...

size_t	getIndex (std::string paramName) const

const Interval *	getIntervalPtr (std::string paramName) const
	Get a pointer to an INTERVAL value from the input row. More...

const Interval &	getIntervalRef (std::string paramName) const
	Get a reference to an INTERVAL value from the input row. More...

const IntervalYM *	getIntervalYMPtr (std::string paramName) const
	Get a pointer to a INTERVAL YEAR TO MONTH value from the input row. More...

const IntervalYM &	getIntervalYMRef (std::string paramName) const
	Get a reference to an INTERVAL YEAR TO MONTH value from the input row. More...

const vint *	getIntPtr (std::string paramName) const
	Get a pointer to an INTEGER value from the input row. More...

const vint &	getIntRef (std::string paramName) const
	Get a reference to an INTEGER value from the input row. More...

size_t	getNumCols () const

const VNumeric *	getNumericPtr (std::string paramName) const
	Get a pointer to a VNumeric value from the input row. More...

const VNumeric &	getNumericRef (std::string paramName) const
	Get a reference to a VNumeric value from the input row. More...

int	getNumRows () const

std::vector< std::string >	getParamNames () const
	Return the names of all parameters stored in this ParamReader.

const VString *	getStringPtr (std::string paramName) const
	Get a pointer to a VString value from the input row. More...

const VString &	getStringRef (std::string paramName) const
	Get a reference to an VString value from the input row. More...

const TimeADT *	getTimePtr (std::string paramName) const
	Get a pointer to a TIME value from the input row. More...

const TimeADT &	getTimeRef (std::string paramName) const
	Get a reference to a TIME value from the input row. More...

const Timestamp *	getTimestampPtr (std::string paramName) const
	Get a pointer to a TIMESTAMP value from the input row. More...

const Timestamp &	getTimestampRef (std::string paramName) const
	Get a reference to a TIMESTAMP value from the input row. More...

const TimestampTz *	getTimestampTzPtr (std::string paramName) const
	Get a pointer to a TIMESTAMP WITH TIMEZONE value from the input row. More...

const TimestampTz &	getTimestampTzRef (std::string paramName) const
	Get a reference to a TIMESTAMP WITH TIMEZONE value from the input row. More...

const TimeTzADT *	getTimeTzPtr (std::string paramName) const
	Get a pointer to a TIME WITH TIMEZONE value from the input row. More...

const TimeTzADT &	getTimeTzRef (std::string paramName) const
	Get a reference to a TIME WITH TIMEZONE value from the input row. More...

VerticaType	getType (std::string paramName) const
	Return the type of the given parameter.

const SizedColumnTypes &	getTypeMetaData () const

SizedColumnTypes &	getTypeMetaData ()

VUuid *	getUuidPtr (std::string paramName) const
	Get a pointer to a VUuid value from the input row. More...

const VUuid &	getUuidRef (std::string paramName) const

void *	getVoidPtr (size_t idx=0)

const void *	getVoidPtr (size_t idx=0) const

bool	isEmpty () const
	Returns true if there are no parameters.

bool	remaining () const

void	setDataArea (size_t idx, void *dataarea)

Public Attributes
std::map< std::string, size_t >	paramNameToIndex

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	VerticaBlockSerializer

Detailed Description

Provides read access to a set of named parameters. This class provides type-specific methods to retrieve values.

Member Function Documentation

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

protectedinherited

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 addParameter().

void Vertica::ParamReader::addParameter	(	std::string	paramName,
		const char *	arg,
		const VerticaType &	dt
	)

inline

Add a parameter to the block and stores it name and corresponding index in the paramNameToIndex map

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

inlineprotectedinherited

Returns: a pointer to a DataArea for accumulating an intermediate result

const vbool* Vertica::ParamReader::getBoolPtr ( std::string paramName ) const

inline

Get a pointer to a BOOLEAN value from the input row.

Parameters

paramName The name of the parameter to retrieve

Returns: A pointer to the retrieved value cast as a BOOLEAN.

Referenced by getBoolRef().

const vbool& Vertica::ParamReader::getBoolRef ( std::string paramName ) const

inline

Get a reference to a BOOLEAN value from the input row.

Parameters

paramName The name of the parameter to retrieve

Returns: a reference to the parameter value, cast as an BOOLEAN.

template<class T >

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

inlineinherited

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

Example:

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

template<class T >

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

inlineinherited

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

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

const DateADT* Vertica::ParamReader::getDatePtr ( std::string paramName ) const

inline

Get a pointer to a DATE value from the input row.

Parameters

paramName The name of the parameter to retrieve

Returns: A pointer to the retrieved value cast as a DATE.

Referenced by getDateRef().

const DateADT& Vertica::ParamReader::getDateRef ( std::string paramName ) const

inline

Get a reference to a DATE value from the input row.

Parameters

paramName The name of the parameter to retrieve

Returns: a reference to the parameter value, cast as an DATE.

const vfloat* Vertica::ParamReader::getFloatPtr ( std::string paramName ) const

inline

Get a pointer to a FLOAT value from the input row.

Parameters

paramName The name of the parameter to retrieve

Returns: A pointer to the retrieved value cast as a FLOAT.

Referenced by getFloatRef().

const vfloat& Vertica::ParamReader::getFloatRef ( std::string paramName ) const

inline

Get a reference to a FLOAT value from the input row.

Parameters

paramName The name of the parameter to retrieve

Returns: A reference to the parameter value, cast as an FLOAT.

const Interval* Vertica::ParamReader::getIntervalPtr ( std::string paramName ) const

inline

Get a pointer to an INTERVAL value from the input row.

Parameters

paramName The name of the parameter to retrieve

Returns: A pointer to the retrieved value cast as an INTERVAL.

Referenced by getIntervalRef().

const Interval& Vertica::ParamReader::getIntervalRef ( std::string paramName ) const

inline

Get a reference to an INTERVAL value from the input row.

Parameters

paramName The name of the parameter to retrieve

Returns: a reference to the parameter value, cast as an INTERVAL.

const IntervalYM* Vertica::ParamReader::getIntervalYMPtr ( std::string paramName ) const

inline

Get a pointer to a INTERVAL YEAR TO MONTH value from the input row.

Parameters

paramName The name of the parameter to retrieve

Returns: A point to the retrieved value cast as a INTERVAL YEAR TO MONTH.

Referenced by getIntervalYMRef().

const IntervalYM& Vertica::ParamReader::getIntervalYMRef ( std::string paramName ) const

inline

Get a reference to an INTERVAL YEAR TO MONTH value from the input row.

Parameters

paramName The name of the parameter to retrieve

Returns: a reference to the parameter value, cast as an INTERVAL YEAR TO MONTH.

const vint* Vertica::ParamReader::getIntPtr ( std::string paramName ) const

inline

Get a pointer to an INTEGER value from the input row.

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

Parameters

paramName The name of the parameter to retrieve

Example:

vint *a = arg_reader->getIntPtr("max");

Referenced by getIntRef().

const vint& Vertica::ParamReader::getIntRef ( std::string paramName ) const

inline

Get a reference to an INTEGER value from the input row.

Parameters

paramName The name of the parameter to retrieve

Returns: a reference to the parameter value, cast as an INTEGER.

Example:

vint a = arg_reader->getIntRef("max");

size_t Vertica::VerticaBlock::getNumCols ( ) const

inlineinherited

Returns: the number of columns held by this block.

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

const VNumeric* Vertica::ParamReader::getNumericPtr ( std::string paramName ) const

inline

Get a pointer to a VNumeric value from the input row.

Parameters

paramName The name of the parameter to retrieve

Returns: A pointer to the retrieved value cast as a Numeric.

Referenced by getNumericRef().

const VNumeric& Vertica::ParamReader::getNumericRef ( std::string paramName ) const

inline

Get a reference to a VNumeric value from the input row.

Parameters

paramName The name of the parameter to retrieve

Returns: a reference to the parameter value, cast as an VNumeric.

int Vertica::VerticaBlock::getNumRows ( ) const

inlineinherited

Returns: the number of rows held by this block.

const VString* Vertica::ParamReader::getStringPtr ( std::string paramName ) const

inline

Get a pointer to a VString value from the input row.

Parameters

paramName The name of the parameter to retrieve

Returns: A pointer to the retrieved value cast as a VString.

Referenced by getStringRef().

const VString& Vertica::ParamReader::getStringRef ( std::string paramName ) const

inline

Get a reference to an VString value from the input row.

Parameters

paramName The name of the parameter to retrieve

Returns: a reference to the parameter value, cast as an VString.

const TimeADT* Vertica::ParamReader::getTimePtr ( std::string paramName ) const

inline

Get a pointer to a TIME value from the input row.

Parameters

paramName The name of the parameter to retrieve

Returns: A pointer to the retrieved value cast as a TIME.

Referenced by getTimeRef().

const TimeADT& Vertica::ParamReader::getTimeRef ( std::string paramName ) const

inline

Get a reference to a TIME value from the input row.

Parameters

paramName The name of the parameter to retrieve

Returns: a reference to the parameter value, cast as a TIME.

const Timestamp* Vertica::ParamReader::getTimestampPtr ( std::string paramName ) const

inline

Get a pointer to a TIMESTAMP value from the input row.

Parameters

paramName The name of the parameter to retrieve

Returns: A pointer to the retrieved value cast as a TIMESTAMP.

Referenced by getTimestampRef().

const Timestamp& Vertica::ParamReader::getTimestampRef ( std::string paramName ) const

inline

Get a reference to a TIMESTAMP value from the input row.

Parameters

paramName The name of the parameter to retrieve

Returns: a reference to the parameter value, cast as a TIMESTAMP.

const TimestampTz* Vertica::ParamReader::getTimestampTzPtr ( std::string paramName ) const

inline

Get a pointer to a TIMESTAMP WITH TIMEZONE value from the input row.

Parameters

paramName The name of the parameter to retrieve

Returns: A pointer to the retrieved value cast as a TIMESTAMP WITH TIMEZONE .

Referenced by getTimestampTzRef().

const TimestampTz& Vertica::ParamReader::getTimestampTzRef ( std::string paramName ) const

inline

Get a reference to a TIMESTAMP WITH TIMEZONE value from the input row.

Parameters

paramName The name of the parameter to retrieve

Returns: a reference to the parameter value, cast as a TIMESTAMP WITH TIMEZONE.

const TimeTzADT* Vertica::ParamReader::getTimeTzPtr ( std::string paramName ) const

inline

Get a pointer to a TIME WITH TIMEZONE value from the input row.

Parameters

paramName The name of the parameter to retrieve

Returns: A pointer to the retrieved value cast as a TIME WITH TIMEZONE.

Referenced by getTimeTzRef().

const TimeTzADT& Vertica::ParamReader::getTimeTzRef ( std::string paramName ) const

inline

Get a reference to a TIME WITH TIMEZONE value from the input row.

Parameters

paramName The name of the parameter to retrieve

Returns: a reference to the parameter value, cast as a TIME WITH TIMEZONE.

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

inlineinherited

Returns: information about the types and numbers of arguments

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

SizedColumnTypes& Vertica::VerticaBlock::getTypeMetaData ( )

inlineinherited

Returns: information about the types and numbers of arguments

VUuid* Vertica::ParamReader::getUuidPtr ( std::string paramName ) const

inline

Get a pointer to a VUuid value from the input row.

Parameters

paramName The name of the parameter to retrieve

Returns: A pointer to the retrieved value cast as a VUuid.

bool Vertica::VerticaBlock::remaining ( ) const

inlineinherited

Returns: the number of entries remaining in the block

Member Data Documentation

std::map<std::string, size_t> Vertica::ParamReader::paramNameToIndex

Bookkeepinp to make a parameter and its position in the block

Referenced by addParameter(), containsParameter(), copy(), Vertica::ParamWriter::getLongStringRef(), Vertica::ParamWriter::getNumericRef(), getParamNames(), Vertica::ParamWriter::getStringRef(), Vertica::ParamWriter::getUuidRef(), and isEmpty().

Public Member Functions

Public Attributes

Protected Member Functions

Protected Attributes

Friends

Detailed Description

Member Function Documentation

Member Data Documentation