System Model Relationship
The Messaging subsystem resides between Messaging applications and the lower level subsystems that Messaging subsystem uses for storage and transmission of messages.
Figure: System model relationship
- Message Viewers
Application for viewing a message.
- Message Centre
Application that displays list views of messages to the user, allowing the user to perform operations such as copying messages, sending messages, creating new messages and so on.
- Message Editors
Application for creating or editing a message.
- SendAs Clients
Messaging clients, such as Client MTM, client applications that implement SendAs.
- EStore
Symbian platform component that provides stream based storage. It provides the framework classes for the Message Store files.
- File system
A set of conventions used to access a drive, and the software that implements those conventions. Local, ROM and installable file systems are supported.
- SQL
A component that provides an SQL database service. Messaging subsystem stores each TMsvEntry (index entry) of the index file as a row of an SQL table in the SQL database. For more information on how Messaging subsystem has implemented SQL, see Operating with the SQL database.