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MSenServiceConsumer Class Reference

class MSenServiceConsumer

Callback interface for service consumers

Public Member Functions
void	HandleErrorL (const TInt , const TDesC8 &)
void	HandleMessageL (const TDesC8 &)
void	SetStatus (const TInt )

Member Functions Documentation

HandleErrorL(const TInt, const TDesC8 &)

void	HandleErrorL	(	const TInt	aErrorCode,
			const TDesC8 &	aErrorMessage
		)	[pure virtual]

Callback, which is invoked when an error message is received from invoked service. Inside this method, it is guarenteed, that the TxnId() getter provided by CSenServiceConnection class will return valid transaction ID. This allows one to map the ID of sent request, returned from CSenServiceConnection::SendL with the response that is provided in this callback.

Parameters

const TInt aErrorCode

is the error code (negative number) Error codes are some of the following: KErrSenNotInitialized Connection hasn't been initialized. KErrConnectionInitializing Connection is still initializing. KErrSubmitting Submitting a message failed, e.g. tried to send a NULL message. KErrConnectionExpired Connection has expired and needs to be renewed. KErrSenSoapFault A SOAP fault occurred, aErrorMessage should contain more detailed information. KErrSenInternal Internal error in Web Services framework KErrUnknown An unexpected major error has occurred and cause is unknown. Other possible error codes can be HTTP error codes or system-wide Symbian error codes.

const TDesC8 & aErrorMessage

contains the error message data; with SOAP based services, possibly a SOAP fault as XML.

HandleMessageL(const TDesC8 &)

void

HandleMessageL

(

const TDesC8 &

aMessage

)

[pure virtual]

Callback, which is invoked when a message is received from invoked service. Inside this method, it is guarenteed, that the TxnId() getter provided by CSenServiceConnection class will return valid transaction ID. This allows one to map the ID of sent request, returned from CSenServiceConnection::SendL with the response that is provided in this callback.

Parameters

const TDesC8 & aMessage

incoming message.

SetStatus(const TInt)

void

SetStatus

(

const TInt

aStatus

)

[pure virtual]

This method is called when the status of the connection to the service changes.

Parameters

const TInt aStatus

is connection state indicator, which could be specified by the actual service invocation framework implementation. The following status codes are possible for any installed framework: KSenConnectionStatusNew Connection is being initialized, but not yet ready. KSenConnectionStatusReady Connection is ready to be used. For example, SubmitL() and SendL() methods (depending of framework) are in invocable state. KSenConnectionStatusExpired Connection is expired. Typically, a new connection needs next to be initialized in order to communicate with the underlying service behind this service connection.