casacore::HelpMeasUDF Class Reference

#include <Register.h>

Public Member Functions
virtual void	setup (const Table &, const TaQLStyle &)
	Setup the object.
virtual String	getString (const TableExprId &id)
	Get the value.
Public Member Functions inherited from casacore::UDFBase
	UDFBase ()
	Only default constructor is needed.
virtual	~UDFBase ()
	Destructor.
virtual Bool	getBool (const TableExprId &id)
	Evaluate the function and return the result.
virtual Int64	getInt (const TableExprId &id)
virtual Double	getDouble (const TableExprId &id)
virtual DComplex	getDComplex (const TableExprId &id)
virtual TaqlRegex	getRegex (const TableExprId &id)
virtual MVTime	getDate (const TableExprId &id)
virtual MArray< Bool >	getArrayBool (const TableExprId &id)
virtual MArray< Int64 >	getArrayInt (const TableExprId &id)
virtual MArray< Double >	getArrayDouble (const TableExprId &id)
virtual MArray< DComplex >	getArrayDComplex (const TableExprId &id)
virtual MArray< String >	getArrayString (const TableExprId &id)
virtual MArray< MVTime >	getArrayDate (const TableExprId &id)
const String &	getUnit () const
	Get the unit.
const Record &	getAttributes () const
	Get the attributes.
virtual void	flattenTree (std::vector< TableExprNodeRep * > &)
	Flatten the node tree by adding the node and its children to the vector.
void	init (const std::vector< TENShPtr > &arg, const TableExprInfo &tableInfo, const TaQLStyle &)
	Initialize the function object.
TableExprNodeRep::NodeDataType	dataType () const
	Get the data type.
Int	ndim () const
	Get the dimensionality of the results.
const IPosition &	shape () const
	Get the result shape if the same for all results.
Bool	isConstant () const
	Tell if the UDF gives a constant result.
Bool	isAggregate () const
	Tell if the UDF is an aggregate function.
void	disableApplySelection ()
	Do not apply the selection.
void	applySelection (const Vector< rownr_t > &rownrs)
	If needed, let the UDF re-create column objects for a selection of rows.

Static Public Member Functions
static UDFBase *	makeHELP (const String &)
	Function to create an object.
static void	showFuncsPosition (std::ostream &, Bool showTypes)
	Show the possible functions.
static void	showFuncsEpoch (std::ostream &, Bool showTypes)
static void	showFuncsDirection (std::ostream &, Bool showTypes)
static void	showFuncsEarthMagnetic (std::ostream &, Bool showTypes)
static void	showFuncsFrequency (std::ostream &, Bool showTypes)
static void	showFuncsDoppler (std::ostream &, Bool showTypes)
static void	showFuncsRadialVelocity (std::ostream &, Bool showTypes)
Static Public Member Functions inherited from casacore::UDFBase
static void	registerUDF (const String &name, MakeUDFObject *func)
	Register the name and construction function of a UDF (thread-safe).
static UDFBase *	createUDF (const String &name, const TaQLStyle &style)
	Create a UDF object (thread-safe).

Additional Inherited Members
Public Types inherited from casacore::UDFBase
typedef UDFBase *	MakeUDFObject(const String &functionName)
	The signature of a global or static member function creating an object of the UDF.
Protected Member Functions inherited from casacore::UDFBase
std::vector< TENShPtr > &	operands ()
	Get the operands.
void	setDataType (TableExprNodeRep::NodeDataType)
	Set the data type.
void	setNDim (Int ndim)
	Set the dimensionality of the results.
void	setShape (const IPosition &shape)
	Set the shape of the results if it is fixed and known.
void	setUnit (const String &unit)
	Set the unit of the result.
void	setAttributes (const Record &attributes)
	Set the attributes of the result.
void	setConstant (Bool isConstant)
	Define if the result is constant (e.g.
void	setAggregate (Bool isAggregate)
	Define if the UDF is an aggregate function (usually used in GROUPBY).
virtual void	recreateColumnObjects (const Vector< rownr_t > &rownrs)
	Let a derived class recreate its column objects in case a selection has to be applied.

Detailed Description

Synopsis

General meas function to show the available functions.

Definition at line 49 of file Register.h.

Member Function Documentation

getString()

virtual String casacore::HelpMeasUDF::getString ( const TableExprId &  id )

virtual

Get the value.

Reimplemented from casacore::UDFBase.

makeHELP()

static UDFBase * casacore::HelpMeasUDF::makeHELP ( const String &  )

static

Function to create an object.

setup()

virtual void casacore::HelpMeasUDF::setup ( const Table &  , const TaQLStyle &    )

virtual

Setup the object.

Implements casacore::UDFBase.

showFuncsDirection()

static void casacore::HelpMeasUDF::showFuncsDirection ( std::ostream &  , Bool  showTypes  )

static

showFuncsDoppler()

static void casacore::HelpMeasUDF::showFuncsDoppler ( std::ostream &  , Bool  showTypes  )

static

showFuncsEarthMagnetic()

static void casacore::HelpMeasUDF::showFuncsEarthMagnetic ( std::ostream &  , Bool  showTypes  )

static

showFuncsEpoch()

static void casacore::HelpMeasUDF::showFuncsEpoch ( std::ostream &  , Bool  showTypes  )

static

showFuncsFrequency()

static void casacore::HelpMeasUDF::showFuncsFrequency ( std::ostream &  , Bool  showTypes  )

static

showFuncsPosition()

static void casacore::HelpMeasUDF::showFuncsPosition ( std::ostream &  , Bool  showTypes  )

static

Show the possible functions.

showFuncsRadialVelocity()

static void casacore::HelpMeasUDF::showFuncsRadialVelocity ( std::ostream &  , Bool  showTypes  )

static

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

• meas/MeasUDF/Register.h