There is one instance of this class for each device. More...

#include "tango.h"

Public Member Functions
Constructor
Only one constructor is defined for this class
	MultiAttribute (string &dev_name, DeviceClass dev_class, DeviceImpl dev)
	Create a new MultiAttribute object. More...

Destructor
Only one desctructor is defined for this class
	~MultiAttribute ()
	The MultiAttribute desctructor.

Miscellaneous methods
Attribute &	get_attr_by_name (const char *attr_name)
	Get Attribute object from its name. More...

Attribute &	get_attr_by_ind (const long ind)
	Get Attribute object from its index. More...

WAttribute &	get_w_attr_by_name (const char *attr_name)
	Get Writable Attribute object from its name. More...

WAttribute &	get_w_attr_by_ind (const long ind)
	Get Writable Attribute object from its index. More...

long	get_attr_ind_by_name (const char *attr_name)
	Get Attribute index into the main attribute vector from its name. More...

vector< long > &	get_alarm_list ()
	Get list of attribute with an alarm level defined. More...

unsigned long	get_attr_nb ()
	Get attribute number. More...

bool	check_alarm (const char *attr_name)
	Check alarm for one attribute with a given name. More...

bool	check_alarm (const long ind)
	Check alarm for one attribute from its index in the main attributes vector. More...

bool	check_alarm ()
	Check alarm on all attribute(s) with an alarm defined. More...

void	read_alarm (string &status)
	Add alarm message to device status. More...

vector< Attribute * > &	get_attribute_list ()
	Get the vector of attribute objects. More...

Protected Attributes
Class data members
vector< Attribute * >	attr_list
	The Attribute objects vector. More...

vector< long >	writable_attr_list
	The list of writable attribute. More...

vector< long >	alarm_attr_list
	The list of attribute with an alarm level defined. More...

Detailed Description

There is one instance of this class for each device.

This class is mainly an aggregate of Attribute or WAttribute objects. It eases management of multiple attributes

Author: taurel

Revision: 28373

Constructor & Destructor Documentation

Tango::MultiAttribute::MultiAttribute	(	string &	dev_name,
		DeviceClass *	dev_class,
		DeviceImpl *	dev
	)

Create a new MultiAttribute object.

This constructor will in-turn call the constructor of the Attribute or WAttribute class of all the device class attributes.

Parameters

dev_name	The device name
dev_class	Reference to the device DeviceClass object
dev	The device pointer

Exceptions

DevFailed If the command sent to the database failed. Click here to read DevFailed exception specification

Member Function Documentation

bool Tango::MultiAttribute::check_alarm ( const char * attr_name )

inline

Check alarm for one attribute with a given name.

This method returns a boolean set to true if the attribute with the given name is in alarm condition

Parameters

attr_name The attribute name

Returns: A boolean set to true if the attribute is in alarm

Exceptions

DevFailed If the attribute does not have any alarm level defined. Click here to read DevFailed exception specification

References Tango::Attribute::check_alarm(), and get_attr_by_name().

bool Tango::MultiAttribute::check_alarm ( const long ind )

inline

Check alarm for one attribute from its index in the main attributes vector.

This method returns a boolean set to true if the attribute with the given index in the attrobite object vector is in alarm condition

Parameters

ind	The attribute index

Returns: A boolean set to true if the attribute is in alarm

Exceptions

DevFailed If the attribute does not have any alarm level defined. Click here to read DevFailed exception specification

References Tango::Attribute::check_alarm(), and get_attr_by_ind().

bool Tango::MultiAttribute::check_alarm ( )

Check alarm on all attribute(s) with an alarm defined.

This method returns a boolean set to true if one of the attribute with an alarm level defined is in alarm condition.

Returns: A boolean set to true if one attribute is in alarm

Exceptions

DevFailed If the alarm level are not defined for one of the attribute in the list of alarmable one Click here to read DevFailed exception specification

vector<long>& Tango::MultiAttribute::get_alarm_list ( )

inline

Get list of attribute with an alarm level defined.

Returns: A vector of long data. Each object is the index in the main attribute vector of attribute with alarm level defined

References alarm_attr_list.

Attribute& Tango::MultiAttribute::get_attr_by_ind ( const long ind )

inline

Get Attribute object from its index.

This method returns a reference to the Attribute object from the index in the main attribute vector

Parameters

ind	The attribute index

Returns: A reference to the Attribute object

References attr_list.

Referenced by check_alarm().

Attribute& Tango::MultiAttribute::get_attr_by_name ( const char * attr_name )

Get Attribute object from its name.

This method returns a reference to the Attribute object with a name passed as parameter. The equality on attribute name is case independant.

Parameters

attr_name The attribute name

Returns: A reference to the Attribute object

Exceptions

DevFailed If the attribute is not defined. Click here to read DevFailed exception specification

Referenced by check_alarm().

long Tango::MultiAttribute::get_attr_ind_by_name ( const char * attr_name )

Get Attribute index into the main attribute vector from its name.

This method returns the index in the Attribute vector (stored in the MultiAttribute object) of an attribute with a given name. The name equality is case independant

Parameters

attr_name The attribute name

Returns: The index in the main attributes vector

Exceptions

DevFailed If the attribute is not found in the vector. Click here to read DevFailed exception specification

unsigned long Tango::MultiAttribute::get_attr_nb ( )

inline

Get attribute number.

Returns: The attribute number

References attr_list.

vector<Attribute *>& Tango::MultiAttribute::get_attribute_list ( )

inline

Get the vector of attribute objects.

Returns the vector of attribute objects.

References attr_list.

WAttribute& Tango::MultiAttribute::get_w_attr_by_ind ( const long ind )

inline

Get Writable Attribute object from its index.

This method returns a reference to the Writable Attribute object from the index in the main attribute vector

Parameters

ind	The attribute index

Returns: A reference to the WAttribute object

References attr_list.

WAttribute& Tango::MultiAttribute::get_w_attr_by_name ( const char * attr_name )

Get Writable Attribute object from its name.

This method returns a reference to the WAttribute object with a name passed as parameter. The equality on attribute name is case independant.

Parameters

attr_name The attribute name

Returns: A reference to the writable attribute object

Exceptions

DevFailed If the attribute is not defined. Click here to read DevFailed exception specification

void Tango::MultiAttribute::read_alarm ( string & status )

Add alarm message to device status.

This method add alarm mesage to the string passed as parameter. A message is added for each attribute which is in alarm condition

Parameters

status The string (should be the device status)

Member Data Documentation

vector<long> Tango::MultiAttribute::alarm_attr_list

protected

The list of attribute with an alarm level defined.

It is a vector of index in the main attribute vector

Referenced by get_alarm_list().

vector<Attribute *> Tango::MultiAttribute::attr_list

protected

The Attribute objects vector.

This vector is often referred as the main attributes vector

Referenced by get_attr_by_ind(), get_attr_nb(), get_attribute_list(), and get_w_attr_by_ind().

vector<long> Tango::MultiAttribute::writable_attr_list

protected

The list of writable attribute.

It is a vector of index in the main attribute vector

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

multiattribute.h

Public Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation