The QOrganizerItemFetchHint class provides hints to the manager about which organizer item information needs to be retrieved in an asynchronous fetch request or a synchronous function call. More...
#include <QOrganizerItemFetchHint>This class was introduced in Qt Mobility 1.1.
| enum | OptimizationHint { AllRequired, NoBinaryBlobs } |
| flags | OptimizationHints |
| QOrganizerItemFetchHint () | |
| QOrganizerItemFetchHint ( const QOrganizerItemFetchHint & other ) | |
| ~QOrganizerItemFetchHint () | |
| QStringList | detailDefinitionsHint () const |
| OptimizationHints | optimizationHints () const |
| void | setDetailDefinitionsHint ( const QStringList & definitionNames ) |
| void | setOptimizationHints ( OptimizationHints hints ) |
| QOrganizerItemFetchHint & | operator= ( const QOrganizerItemFetchHint & other ) |
The QOrganizerItemFetchHint class provides hints to the manager about which organizer item information needs to be retrieved in an asynchronous fetch request or a synchronous function call.
All of the hints may be ignored at the discretion of the manager, however if a manager is able to optimize retrieval of organizer items due to hints, it may do so. If a manager ignores a hint, it must retrieve the full set of data that the hint refers to.
The fetch hint contains:
Important note: a client should not make changes to an organizer item which has been retrieved using a fetch hint other than the default fetch hint. Doing so will result in information loss when saving the organizer item back to the manager (as the "new" restricted organizer item will replace the previously saved organizer item in the backend).
This enum defines flags which may be set to inform the backend that the client does not require certain information. The backend may safely ignore the hint, but then must return the full set of information relating to the optimization hint.
| Constant | Value | Description |
|---|---|---|
| QOrganizerItemFetchHint::AllRequired | 0x0 | Tells the backend that all information is required Tells the backend that the client does not require retrieved organizer items to include a cache of action preferences |
| QOrganizerItemFetchHint::NoBinaryBlobs | 0x4 | Tells the backend that the client does not require retrieved organizer items to include binary blobs such as thumbnail images |
The OptimizationHints type is a typedef for QFlags<OptimizationHint>. It stores an OR combination of OptimizationHint values.
Constructs a new organizer item fetch hint which requests that the backend fetch all information
Constructs a new organizer item fetch hint as a copy of other
This function was introduced in Qt Mobility 1.1.
Frees any memory in use by the fetch hint
Returns the list of definition names that identify detail definitions of which details the manager should (at a minimum) retrieve when fetching organizer items. This hint may be ignored by the backend, in which case it will return the full set of details for each organizer item retrieved.
This function was introduced in Qt Mobility 1.1.
See also setDetailDefinitionsHint().
Returns the optimization hint flags specified by the client. These hints may be ignored by the backend, in which case it will return the full set of information accessible in an organizer item.
This function was introduced in Qt Mobility 1.1.
See also setOptimizationHints().
Sets the list of definition names that identify detail definitions of which details the manager should (at a minimum) retrieve when fetching organizer items to definitionNames. This hint may be ignored by the backend, in which case it will return the full set of details for each organizer item retrieved.
This function was introduced in Qt Mobility 1.1.
See also detailDefinitionsHint().
Sets the optimization hint flags specified by the client to hints. These hints may be ignored by the backend, in which case it will return the full set of information accessible in an organizer item.
This function was introduced in Qt Mobility 1.1.
See also optimizationHints().
Assigns this fetch hint to be equal to the other fetch hint
This function was introduced in Qt Mobility 1.1.