| class ContentAccess::CAttribute : public CBase |
Encapsulates the attributes of a piece of content.
These attributes will be required by DRM-aware applications in order that they can uphold DRM policies in a well-behaved manner. In general, clients set one or more attributes in the Query set, make a GetL call, and then read the agent's reponse from the Response set.
Queries - what the client is interested in knowing.
Responses - the answers to the queries.
Capabilities - which attributes the system is able to support.
Access to the bitset operations themselves can be achieved via the ContentAccess::CAttribute::AttributeSetL operation.
| Public Member Functions | |
|---|---|
| ~CAttribute() | |
| IMPORT_C void | GetL() |
| CAttribute * | NewLC(TUid, RFile &) |
| CAttribute * | NewLC(TUid, const TDesC &, TContentShareMode) |
| IMPORT_C CBitset & | QuerySet() |
| IMPORT_C void | Reset() |
| IMPORT_C const CBitset & | ResponseSet() |
| Private Member Functions | |
|---|---|
| CAttribute() | |
| void | ConstructL(TUid, RFile &) |
| void | ConstructL(TUid, const TDesC &, TContentShareMode) |
| Private Attributes | |
|---|---|
| CAgentContent * | iAgentContent |
| CAgentFactory * | iAgentFactory |
| CBitset * | iQuerySet |
| CBitset * | iResponseSet |
| void | ConstructL | ( | TUid | aAgentUid, |
| const TDesC & | aURI, | |||
| TContentShareMode | aShareMode = EContentShareReadOnly | |||
| ) | [private] | |||
| TUid aAgentUid | |
| const TDesC & aURI | |
| TContentShareMode aShareMode = EContentShareReadOnly |
| IMPORT_C void | GetL | ( | ) |
Delivers the attribute object to the relevant agent for querying.
The agent will set or reset the ResponseSet() bits for any QuerySet() bits that are set
| CAttribute * | NewLC | ( | TUid | aAgentUid, |
| RFile & | aFile | |||
| ) | [static] | |||
Constructs a new attribute given an agent and file handle.
The new CAttribute.
| CAttribute * | NewLC | ( | TUid | aAgentUid, |
| const TDesC & | aURI, | |||
| TContentShareMode | aShareMode = EContentShareReadOnly | |||
| ) | [static] | |||
Constructs a new attribute given an agent and content.
The new CAttribute.
| TUid aAgentUid | The agent Uid |
| const TDesC & aURI | The pathname of the target content. |
| TContentShareMode aShareMode = EContentShareReadOnly | Optional share mode for opening attributes of this content, defaults to EContentShareReadOnly. This parameter has no effect unless the content is a local file on the device. |
| IMPORT_C CBitset & | QuerySet | ( | ) |
Returns a reference to the query set
The bits of the query-set should be set or cleared prior to the "GetL()" call to specify which attributes the client is interested in.
// Set EIsProtected in the Query set. MyAttr->QuerySet(EQuerySet).Set(EIsProtected);
| IMPORT_C const CBitset & | ResponseSet | ( | ) | const |
Returns a reference to the response set.
The response set will only be valid after a call to the "GetL()" operation.
A CBitset refererence.