NDAttribute class; an attribute has a name, description, source type, source string, data type, and value. More...

#include <NDAttribute.h>

Inheritance diagram for NDAttribute:

Public Member Functions
	NDAttribute (const char pName, const char pDescription, NDAttrSource_t sourceType, const char pSource, NDAttrDataType_t dataType, void pValue)
	NDAttribute constructor. More...

	NDAttribute (NDAttribute &attribute)
	NDAttribute copy constructor. More...

virtual	~NDAttribute ()
	NDAttribute destructor. More...

virtual NDAttribute *	copy (NDAttribute *pAttribute)
	Copies properties from this to pOut. More...

virtual const char *	getName ()
	Returns the name of this attribute. More...

virtual const char *	getDescription ()
	Returns the description of this attribute. More...

virtual const char *	getSource ()
	Returns the source string of this attribute. More...

virtual const char *	getSourceInfo (NDAttrSource_t *pSourceType)
	Returns the source information of this attribute. More...

virtual NDAttrDataType_t	getDataType ()
	Returns the data type of this attribute. More...

virtual int	getValueInfo (NDAttrDataType_t pDataType, size_t pDataSize)
	Returns the data type and size of this attribute. More...

virtual int	getValue (NDAttrDataType_t dataType, void *pValue, size_t dataSize=0)
	Returns the value of this attribute. More...

virtual int	getValue (std::string &value)
	Returns the value of an NDAttrString attribute as an std::string. More...

virtual int	setDataType (NDAttrDataType_t dataType)
	Sets the data type of this attribute. More...

virtual int	setValue (const void *pValue)
	Sets the value for this attribute. More...

virtual int	setValue (const std::string &)
	Sets the value for this attribute. More...

virtual int	updateValue ()
	Updates the current value of this attribute. More...

virtual int	report (FILE *fp, int details)
	Reports on the properties of the attribute. More...

Static Public Member Functions
static const char *	attrSourceString (NDAttrSource_t type)

Friends
class	NDArray

class	NDAttributeList

Detailed Description

NDAttribute class; an attribute has a name, description, source type, source string, data type, and value.

Constructor & Destructor Documentation

NDAttribute::NDAttribute	(	const char *	pName,
		const char *	pDescription,
		NDAttrSource_t	sourceType,
		const char *	pSource,
		NDAttrDataType_t	dataType,
		void *	pValue
	)

NDAttribute constructor.

Parameters

[in]	pName	The name of the attribute to be created.
[in]	sourceType	The source type of the attribute (NDAttrSource_t).
[in]	pSource	The source string for the attribute.
[in]	pDescription	The description of the attribute.
[in]	dataType	The data type of the attribute (NDAttrDataType_t).
[in]	pValue	A pointer to the value for this attribute.

NDAttribute::NDAttribute ( NDAttribute & attribute )

NDAttribute copy constructor.

Parameters

[in] attribute The attribute to copy from

NDAttribute::~NDAttribute ( )

virtual

NDAttribute destructor.

Member Function Documentation

const char * NDAttribute::attrSourceString ( NDAttrSource_t type )

static

NDAttribute * NDAttribute::copy ( NDAttribute * pOut )

virtual

Copies properties from this to pOut.

Parameters

[in] pOut A pointer to the output attribute If NULL the output attribute will be created using the copy constructor Only the value is copied, all other fields are assumed to already be the same in pOut

Returns: Returns a pointer to the copy

Reimplemented in paramAttribute, PVAttribute, and functAttribute.

NDAttrDataType_t NDAttribute::getDataType ( )

virtual

Returns the data type of this attribute.

const char * NDAttribute::getDescription ( )

virtual

Returns the description of this attribute.

const char * NDAttribute::getName ( )

virtual

Returns the name of this attribute.

const char * NDAttribute::getSource ( )

virtual

Returns the source string of this attribute.

const char * NDAttribute::getSourceInfo ( NDAttrSource_t * pSourceType )

virtual

Returns the source information of this attribute.

Parameters

[out] pSourceType Source type (NDAttrSource_t) of this attribute.

Returns: The source type string of this attribute

int NDAttribute::getValue	(	NDAttrDataType_t	dataType,
		void *	pValue,
		size_t	dataSize = `0`
	)

virtual

Returns the value of this attribute.

Parameters

[in]	dataType	Data type for the value.
[out]	pValue	Pointer to location to return the value.
[in]	dataSize	Size of the input data location; only used when dataType is NDAttrString.

Does data type conversions between numeric data types

int NDAttribute::getValue ( std::string & value )

virtual

Returns the value of an NDAttrString attribute as an std::string.

Parameters

[out] value Location to return the value.

Does data type conversions between numeric data types

int NDAttribute::getValueInfo	(	NDAttrDataType_t *	pDataType,
		size_t *	pSize
	)

virtual

Returns the data type and size of this attribute.

Parameters

[out]	pDataType	Pointer to location to return the data type.
[out]	pSize	Pointer to location to return the data size; this is the data type size for all data types except NDAttrString, in which case it is the length of the string including 0 terminator.

int NDAttribute::report	(	FILE *	fp,
		int	details
	)

virtual

Reports on the properties of the attribute.

Parameters

[in]	fp	File pointer for the report output.
[in]	details	Level of report details desired; currently does nothing

Reimplemented in paramAttribute, PVAttribute, and functAttribute.

int NDAttribute::setDataType ( NDAttrDataType_t type )

virtual

Sets the data type of this attribute.

This can only be called once.

int NDAttribute::setValue ( const void * pValue )

virtual

Sets the value for this attribute.

Parameters

[in] pValue Pointer to the value.

int NDAttribute::setValue ( const std::string & value )

virtual

Sets the value for this attribute.

Parameters

[in] value value of this attribute.

int NDAttribute::updateValue ( )

virtual

Updates the current value of this attribute.

The base class does nothing, but derived classes may fetch the current value of the attribute, for example from an EPICS PV or driver parameter library.

Reimplemented in paramAttribute, PVAttribute, and functAttribute.

Friends And Related Function Documentation

friend class NDArray

friend

friend class NDAttributeList

friend

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

/home/epics/devel/areaDetector/ADCore/ADApp/ADSrc/NDAttribute.h
/home/epics/devel/areaDetector/ADCore/ADApp/ADSrc/NDAttribute.cpp

Public Member Functions

Static Public Member Functions

Friends

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation