HistoConverter * HistoDB::Open ( const char *  alias, const char *  name  )

virtual

to open a new DB service

It returns NULL if:

• the service is not known
• the connection cannot be established
• the converter has been open but in a zombie status

If it fails, it is not added to the list of DB services.

The returned HistoConverter provides a interface to any implementation. However it could not be plainty used in the root interpreter because the real implementation are not known by root (no dictionnary).

Definition at line 93 of file HistoDB.cpp.