DUNE::Entities::EntityDataBase Class Reference

Classes
struct	Entity
struct	InvalidId
struct	InvalidLabel
struct	NonexistentLabel
struct	ReservedUnique

Public Member Functions
	EntityDataBase (void)
	~EntityDataBase (void)
bool	labelExists (const std::string &name)
bool	idExists (unsigned int id)
unsigned int	reserve (const std::string &label, const std::string &task_name)
unsigned int	resolve (const std::string &label)
std::string	resolveTaskName (const std::string &label)
const std::string &	resolve (unsigned int id)
void	contents (std::vector< Entity * > &devs)
std::map< unsigned, std::string >	entries (void)

Constructor & Destructor Documentation

DUNE::Entities::EntityDataBase::EntityDataBase ( void  )

inline

Constructor.

DUNE::Entities::EntityDataBase::~EntityDataBase ( void  )

inline

Destructor.

Member Function Documentation

void DUNE::Entities::EntityDataBase::contents ( std::vector< Entity * > &  devs )

inline

Fill a vector with pointers to the existing Entity records.

Parameters

[out]

devs

vector to be filled.

Referenced by DUNE::Daemon::consume(), Monitors::Entities::Task::onEntityResolution(), and Transports::LoggingDigest::Task::startLog().

std::map<unsigned, std::string> DUNE::Entities::EntityDataBase::entries ( void  )

inline

Produce a map between the existing numeric entity ids and the entity labels.

Returns

the produced map.

bool DUNE::Entities::EntityDataBase::idExists ( unsigned int  id )

inline

Determine if an entity identified by a given numeric id exists in the database.

Parameters

[in]

id

numeric id to use.

Returns

true if an entity with the provided id exists in the database, false otherwise.

bool DUNE::Entities::EntityDataBase::labelExists ( const std::string &  name )

inline

Determine if an entity identified by a given label exists in the database.

Parameters

[in]

name

entity label to use.

Returns

true if an entity with the provided label exists in the database, false otherwise.

unsigned int DUNE::Entities::EntityDataBase::reserve ( const std::string &  label, const std::string &  task_name  )

inline

Add an entity to the database, identified by a unique label, and retrieve the reserved numerical id.

Parameters

[in]	label	the desired entity label.
[in]	task_name	the name of the task owning the entity.

Returns

reserved numerical id.

References DUNE::Entities::EntityDataBase::Entity::id, DUNE::Entities::EntityDataBase::Entity::label, and DUNE::Entities::EntityDataBase::Entity::task_name.

Referenced by DUNE::Tasks::Task::reserveEntities(), and DUNE::Tasks::Task::reserveEntity().

unsigned int DUNE::Entities::EntityDataBase::resolve ( const std::string &  label )

inline

Get the numeric id for the entity identified by the given label The NonexistentLabel exception is thrown if there is no matching entity in the database.

Returns

numerical entity id.

Referenced by Sensors::DataStore::Task::onEntityResolution(), Transports::DataStore::Task::process(), DUNE::Tasks::Task::resolveEntity(), and DUNE::Entities::BasicEntity::setLabel().

const std::string& DUNE::Entities::EntityDataBase::resolve ( unsigned int  id )

inline

Get the label for the entity identified by the given numeric id.

The InvalidId exception is thrown if there is no matching entity in the database.

Returns

entity label.

std::string DUNE::Entities::EntityDataBase::resolveTaskName ( const std::string &  label )

inline

Get the task name for the entity identified by the given label The NonexistentLabel exception is thrown if there is no matching entity in the database.

Returns

task name.

Referenced by DUNE::Daemon::consume().

Collaboration diagram for DUNE::Entities::EntityDataBase: