Iterator interface for writing rows to a Vertica block. More...

Inheritance diagram for Vertica::BlockWriter:

Collaboration diagram for Vertica::BlockWriter:

Public Member Functions
	BlockWriter (int rowcount)

	BlockWriter (char outArr, int stride, int rowcount, const int indices, const VerticaType &dt)

int	capacity () const

void	copy (const VerticaBlock &other)

void	copyFromInput (size_t dstIdx, const BlockReader &vblock, size_t srcIdx)

void	copyFromInput (const BlockReader &vblock)

Array::ArrayWriter	getArrayRef (size_t idx=0)
	Get a handle for writing an output array value. 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

size_t	getNumCols () const

VNumeric &	getNumericRef (size_t idx=0)
	Allocates a new VNumeric object to use as output. More...

int	getNumRows () const

BlockWriter *	getRowPtr (size_t idx=0)
	Get a pointer for writing an output Row value. More...

BlockWriter &	getRowRef (size_t idx=0)
	Get a reference for writing an output Row value. More...

int	getRowsWritten () const

VString *	getStringPtr (size_t idx=0)
	Get a pointer for writing output. More...

VString &	getStringRef (size_t idx=0)
	Allocates a new VString object to use as output. More...

const SizedColumnTypes &	getTypeMetaData () const

SizedColumnTypes &	getTypeMetaData ()

VUuid &	getUuidRef (size_t idx=0)
	Allocates a new VUuid object to use as output. More...

void *	getVoidPtr (size_t idx=0)

const void *	getVoidPtr (size_t idx=0) const

bool	hasMoreSpace () const

bool	next ()
	Complete writing this row of output and move to the next row. More...

bool	remaining () const

void	setBool (vbool r)
	Adds a BOOLEAN value to the output row. More...

void	setBool (size_t idx, vbool r)
	Adds a BOOLEAN value to the indicated column of the output row. More...

void	setDataArea (size_t idx, void *dataarea)

void	setDate (DateADT r)
	Adds a DATE value to the output row. More...

void	setDate (size_t idx, DateADT r)
	Adds a DATE value to the indicated column of the output row. More...

void	setFloat (vfloat r)
	Adds a FLOAT value to the output row. More...

void	setFloat (size_t idx, vfloat r)
	Adds a FLOAT value to the indicated column of the output row. More...

void	setInt (vint r)
	Adds an INTEGER value to the output row. More...

void	setInt (size_t idx, vint r)
	Adds an INTEGER value to the indicated column of the output row. More...

void	setInterval (Interval r)
	Adds an INTERVAL value to the output row. More...

void	setInterval (size_t idx, Interval r)
	Adds an INTERVAL value to the indicated column of the output row. More...

void	setIntervalYM (IntervalYM r)
	Adds an INTERVAL YEAR TO MONTH value to the output row. More...

void	setIntervalYM (size_t idx, IntervalYM r)
	Adds an INTERVAL YEAR TO MONTH value to the indicated column of the output row. More...

void	setNull (size_t idx=0, bool enforceNotNullProperty=true)
	Set the column to null. More...

void	setTime (TimeADT r)
	Adds a TIME value to the output row. More...

void	setTime (size_t idx, TimeADT r)
	Adds an TIME value to the indicated column of the output row. More...

void	setTimestamp (Timestamp r)
	Adds a TIMESTAMP value to the output row. More...

void	setTimestamp (size_t idx, Timestamp r)
	Adds an TIMESTAMP value to the indicated column of the output row. More...

void	setTimestampTz (TimestampTz r)
	Adds a TIMESTAMP WITH TIMEZONE value to the output row. More...

void	setTimestampTz (size_t idx, TimestampTz r)
	Adds an TIMESTAMP WITH TIMEZONE value to the indicated column of the output row. More...

void	setTimeTz (TimeTzADT r)
	Adds a TIME WITH TIMEZONE value to the output row. More...

void	setTimeTz (size_t idx, TimeTzADT r)
	Adds an TIME WITH TIMEZONE value to the indicated column of the output row. More...

void	throwIncorrectUsageError ()

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	Array::ArrayWriter

class	EE::VEval

class	PartitionWriter

Detailed Description

Iterator interface for writing rows to a Vertica block.

This class provides the output rows that ScalarFunction.processBlock() writes to.

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 Vertica::ParamReader::addParameter().

void Vertica::BlockWriter::copyFromInput	(	size_t	dstIdx,
		const BlockReader &	vblock,
		size_t	srcIdx
	)

Copies a column from the input reader to the output writer. Raises an error if the input and output data types are not compatible.

Parameters

dstIdx	The destination column index in the output writer (this)
vblock	The source data block
srcIdx	The source column index in the input reader

Referenced by Vertica::copyBlockColumn(), and copyFromInput().

void Vertica::BlockWriter::copyFromInput ( const BlockReader & vblock )

inline

Copy all columns from the source block to this block

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

inlineprotectedinherited

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

Array::ArrayWriter Vertica::BlockWriter::getArrayRef ( size_t idx = 0 )

Get a handle for writing an output array value.

Parameters

idx	the output column

Returns: a handle for writing array elements

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);

size_t Vertica::VerticaBlock::getNumCols ( ) const

inlineinherited

Returns: the number of columns held by this block.

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

VNumeric& Vertica::BlockWriter::getNumericRef ( size_t idx = 0 )

inline

Allocates a new VNumeric object to use as output.

Parameters

idx	the column to reference (default 0)

Returns: A new VNumeric object to hold output. This object automatically added to the output row in the indicated column

Referenced by setNull().

int Vertica::VerticaBlock::getNumRows ( ) const

inlineinherited

Returns: the number of rows held by this block.

BlockWriter* Vertica::BlockWriter::getRowPtr ( size_t idx = 0 )

inline

Get a pointer for writing an output Row value.

Parameters

idx	the output column

Returns: a pointer to a BlockWriter which holds output data for the Row value's fields

BlockWriter& Vertica::BlockWriter::getRowRef ( size_t idx = 0 )

inline

Get a reference for writing an output Row value.

Parameters

idx	the output column

Returns: a reference to a BlockWriter which holds output data for the Row value's fields

Referenced by getRowPtr(), and Vertica::PartitionWriter::getRowRef().

VString* Vertica::BlockWriter::getStringPtr ( size_t idx = 0 )

inline

Get a pointer for writing output.

Parameters

idx	the output column

Returns: A new VString object to hold output. This object automatically added to the output row in the indicated column

VString& Vertica::BlockWriter::getStringRef ( size_t idx = 0 )

inline

Allocates a new VString object to use as output.

Parameters

idx	the column to reference (default 0)

Returns: A new VString object to hold output. This object is automatically added to the output row in the indicated column

Referenced by getStringPtr(), and setNull().

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

inlineinherited

Returns: information about the types and numbers of arguments

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

SizedColumnTypes& Vertica::VerticaBlock::getTypeMetaData ( )

inlineinherited

Returns: information about the types and numbers of arguments

VUuid& Vertica::BlockWriter::getUuidRef ( size_t idx = 0 )

inline

Allocates a new VUuid object to use as output.

Parameters

idx	the column to reference (default 0)

Returns: A new VUuid object to hold output. This object automatically added to the output row in the indicated column

Referenced by setNull().

bool Vertica::BlockWriter::next ( )

inline

Complete writing this row of output and move to the next row.

Referenced by Vertica::copyBlockColumn().

bool Vertica::VerticaBlock::remaining ( ) const

inlineinherited

Returns: the number of entries remaining in the block

void Vertica::BlockWriter::setBool ( vbool r )

inline

Adds a BOOLEAN value to the output row.

Parameters

r	The BOOLEAN value to insert into the output row.

Referenced by setNull().

void Vertica::BlockWriter::setBool	(	size_t	idx,
		vbool	r
	)

inline

Adds a BOOLEAN value to the indicated column of the output row.

Parameters

idx	the column index
r	the BOOLEAN value to insert

void Vertica::BlockWriter::setDate ( DateADT r )

inline

Adds a DATE value to the output row.

Parameters

r	The DATE value to insert into the output row.

Referenced by setNull().

void Vertica::BlockWriter::setDate	(	size_t	idx,
		DateADT	r
	)

inline

Adds a DATE value to the indicated column of the output row.

Parameters

idx	the column index
r	the DATE value to insert

void Vertica::BlockWriter::setFloat ( vfloat r )

inline

Adds a FLOAT value to the output row.

Parameters

r	The FLOAT value to insert into the output row.

Referenced by setNull().

void Vertica::BlockWriter::setFloat	(	size_t	idx,
		vfloat	r
	)

inline

Adds a FLOAT value to the indicated column of the output row.

Parameters

idx	the column index
r	the FLOAT value to insert

void Vertica::BlockWriter::setInt ( vint r )

inline

Adds an INTEGER value to the output row.

Setter methods

Parameters

r	The INTEGER value to insert into the output row.

Referenced by setNull().

void Vertica::BlockWriter::setInt	(	size_t	idx,
		vint	r
	)

inline

Adds an INTEGER value to the indicated column of the output row.

Parameters

idx	the column index
r	the INTEGER value to insert

void Vertica::BlockWriter::setInterval ( Interval r )

inline

Adds an INTERVAL value to the output row.

Parameters

r	The INTERVAL value to insert into the output row.

Referenced by setNull().

void Vertica::BlockWriter::setInterval	(	size_t	idx,
		Interval	r
	)

inline

Adds an INTERVAL value to the indicated column of the output row.

Parameters

idx	the column index
r	the INTERVAL value to insert

void Vertica::BlockWriter::setIntervalYM ( IntervalYM r )

inline

Adds an INTERVAL YEAR TO MONTH value to the output row.

Parameters

r	The INTERVAL YEAR TO MONTH value to insert into the output row.

Referenced by setNull().

void Vertica::BlockWriter::setIntervalYM	(	size_t	idx,
		IntervalYM	r
	)

inline

Adds an INTERVAL YEAR TO MONTH value to the indicated column of the output row.

Parameters

idx	the column index
r	the INTERVAL YEAR TO MONTH value to insert

void Vertica::BlockWriter::setNull	(	size_t	idx = `0`,
		bool	enforceNotNullProperty = `true`
	)

inline

Set the column to null.

Parameters

idx	The column number in the row to set to null
enforceNotNullProperty	if true, raise an error if the target field has the `canBeNull` property set to false.

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

void Vertica::BlockWriter::setTime ( TimeADT r )

inline

Adds a TIME value to the output row.

Parameters

r	The TIME value to insert into the output row.

Referenced by setNull().

void Vertica::BlockWriter::setTime	(	size_t	idx,
		TimeADT	r
	)

inline

Adds an TIME value to the indicated column of the output row.

Parameters

idx	the column index
r	the TIME value to insert

void Vertica::BlockWriter::setTimestamp ( Timestamp r )

inline

Adds a TIMESTAMP value to the output row.

Parameters

r	The TIMESTAMP value to insert into the output row.

Referenced by setNull().

void Vertica::BlockWriter::setTimestamp	(	size_t	idx,
		Timestamp	r
	)

inline

Adds an TIMESTAMP value to the indicated column of the output row.

Parameters

idx	the column index
r	the TIMESTAMP value to insert

void Vertica::BlockWriter::setTimestampTz ( TimestampTz r )

inline

Adds a TIMESTAMP WITH TIMEZONE value to the output row.

Parameters

r	The TIMESTAMP WITH TIMEZONE value to insert into the output row.

Referenced by setNull().

void Vertica::BlockWriter::setTimestampTz	(	size_t	idx,
		TimestampTz	r
	)

inline

Adds an TIMESTAMP WITH TIMEZONE value to the indicated column of the output row.

Parameters

idx	the column index
r	the TIMESTAMP WITH TIMEZONE value to insert

void Vertica::BlockWriter::setTimeTz ( TimeTzADT r )

inline

Adds a TIME WITH TIMEZONE value to the output row.

Parameters

r	The TIME WITH TIMEZONE value to insert into the output row.

Referenced by setNull().

void Vertica::BlockWriter::setTimeTz	(	size_t	idx,
		TimeTzADT	r
	)

inline

Adds an TIME WITH TIMEZONE value to the indicated column of the output row.

Parameters

idx	the column index
r	the TIME WITH TIMEZONE value to insert

Public Member Functions

Protected Member Functions

Protected Attributes

Friends

Detailed Description

Member Function Documentation