From Symbian Developer Community

Persistent Data Services Package

Persistent Data Services is an OS layer package that provides the standard frameworks and libraries for handling persistent data storage.

The package includes the following collections:

• The Persistent Storage collection provides a set of components for structured data storage and data streams. It includes the Central Repository, DBMS, SQL and Store components.
• The Logging Services collection provides functionality to record events of interest to the end user, such as telephone calls and sent and received SMS messages.
• The Feature Management collection provides the ability for applications to modify their run time behaviour based on the presence or absence of hardware and software features.
• The Trace Services collection provides a device-side framework for instrumentation of software components for analysis and debugging by the PC-side tools.

Contents 1 Persistent Data Services Package 1.1 News 1.2 Package Backlog 1.3 Package Wish List 1.4 Related Packages 1.5 Key APIs 1.6 Working with the Package 1.7 Contacts 1.8 Community 1.8.1 Events 1.8.2 Package Health Scorecard

News

06 Aug 10: New central repository feature added to the backlog
06 Jul 10: Instrumentation of Symbian SQL and SQLite (bug 316) delivered to FCL
11 Jun 10: Persistent Data Services backlog reviewed and updated
17 May 10: Added Package Scorecard
05 Mar 10: Persistent Data Services backlog updated to reflect latest plans
26 Feb 10: New book on Symbian SQL published - Inside Symbian SQL
11 Feb 10: Persistent Data Services backlog updated to reflect latest plans
04 Feb 10: We're open source

Package Backlog

The Package Backlog provides visibility of changes planned to the Persistent Data Services package and their expected completion dates.

Package Wish List

We are keen to work with community members to develop and improve the package.

If you would like to help, please have a look at our wish list for ideas.

Related Packages

• Kernel and Hardware Services: Provides file server and file systems used by this package for persistence.

Key APIs

• Guide documentation in the Symbian^3 Product Reference.
• API documentation in the Symbian ^3 Product Reference.

You can also find information about using the Persistent Storage APIs in our recent Symbian Press Data Sharing and Persistence booklet.

Persistent Storage collection	Logging Services collection	Feature Management collection	Trace Services collection
Central Repository DBMS SQL SQLite 3 API Store	Event Logger File Logger RFile Logger	Feature Manager Feature Registry	Comms Debug Utility Trace Framework UTrace

Working with the Package

Generic instruction of how to get the code, build the package, and propose a contribution are described in Contributing Code.

Specific instructions on building and running tests for the Persistent Data package can be found on the Getting Started page.

Contacts

Package owner: Chris Dudding

Committer: Pete Sanders

Forum and mailing list details are available on the package landing page.

Please post all general support questions on the forum and use the persistentdata-dev mailing list for package related discussions.

Community

Events

• October 2009: Notes from Persistent Data, File Systems and Memory BoF at SEE2009.

Package Health Scorecard

The Package Scorecard evaluates the health of this package from a community point of view.

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