RNetDatabase Class Reference
| class RNetDatabase : public RSubSessionBase |
Provides an interface to network databases, such as LM-IAS with IrDA, that may be provided by particular protocol modules.
Before making any queries, a connection to a socket server session must be made.
Each function is available in both synchronous and asynchronous versions.
A single RNetDatabase can only perform one request of any type at once. A client is panicked if it makes two requests.
Particular database access services will specify the format of queries and of responses.
| Inherited Functions |
|---|
| | RSubSessionBase::CloseSubSession(TInt) |
| | RSubSessionBase::CreateAutoCloseSubSession(RSessionBase &,TInt,const TIpcArgs &) |
| | RSubSessionBase::CreateSubSession(const RSessionBase &,TInt) |
| | RSubSessionBase::CreateSubSession(const RSessionBase &,TInt,const TIpcArgs &) |
| | RSubSessionBase::RSubSessionBase() |
| | RSubSessionBase::Send(TInt)const |
| | RSubSessionBase::Send(TInt,const TIpcArgs &)const |
| | RSubSessionBase::SendReceive(TInt)const |
| | RSubSessionBase::SendReceive(TInt,TRequestStatus &)const |
| | RSubSessionBase::SendReceive(TInt,const TIpcArgs &)const |
| | RSubSessionBase::SendReceive(TInt,const TIpcArgs &,TRequestStatus &)const |
| | RSubSessionBase::Session()const |
| | RSubSessionBase::SubSessionHandle()const |
Member Functions Documentation
Add(const TDesC8 &, TRequestStatus &)
Adds a record to the database asynchronously.
-
capability
- Dependent on the type of connection so deferred to PRT
Parameters
| const TDesC8 & anItem | The record to add |
| TRequestStatus & aStat | Indicates asynchronous operation and on completion contains an error code: see the system-wide error codes. |
Add(const TDesC8 &)
Adds a record to the database.
-
capability
- Dependent on the type of connection so deferred to PRT
Parameters
| const TDesC8 & anItem | The record to add |
Cancel()
Cancels any outstanding asynchronous calls, which will return with error code KErrCancel.
Close()
Closes a database access service. If a service has been opened using Open(), then it should be closed using Close(). This will ensure all associated resources are released.
Open(RSocketServ &, TUint, TUint)
Initialises a database access service provided by a particular protocol. It must be called before other object functions are used.
Parameters
| RSocketServ & aSocketServer | The socket server session |
| TUint anAddrFamily | A constant identifying the protocol family |
| TUint aProtocol | A constant that identifies the protocol that provides the database access service |
Query(const TDesC8 &, TDes8 &, TRequestStatus &)
Makes a query to the database asynchronously.
-
capability
- Dependent on the type of connection so deferred to PRT
Parameters
| const TDesC8 & aQuery | The query to perform |
| TDes8 & aResult | The result of the query |
| TRequestStatus & aStat | Indicates asynchronous operation and on completion contains an error code: see the system-wide error codes. |
Query(const TDesC8 &, TDes8 &)
Makes a query to the database.
-
capability
- Dependent on the type of connection so deferred to PRT
Parameters
| const TDesC8 & aQuery | The query to perform |
| TDes8 & aResult | The result of the query |
Remove(const TDesC8 &, TRequestStatus &)
Removes a record from the database asynchronously.
-
capability
- Dependent on the type of connection so deferred to PRT
Parameters
| const TDesC8 & anItem | The record to remove |
| TRequestStatus & aStat | Indicates asynchronous operation and on completion contains an error code: see the system-wide error codes. |
Remove(const TDesC8 &)
Removes a record from the database.
-
capability
- Dependent on the type of connection so deferred to PRT
Parameters
| const TDesC8 & anItem | The record to remove |
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