| GNOME Data Access manual | ||||
|---|---|---|---|---|
GdaDataAccessWrapperGdaDataAccessWrapper — Offers a random access on top of a cursor-only access data model |
GdaDataAccessWrapper;
GdaDataAccessWrapperClass;
GdaDataAccessWrapperPrivate;
GdaDataModel* gda_data_access_wrapper_new (GdaDataModel *model);
gboolean gda_data_access_wrapper_row_exists
(GdaDataAccessWrapper *wrapper,
gint row);
The GdaDataAccessWrapper object simply wraps around another GdaDataModel data model object and allows data to be accessed in a random way while remaining memory efficient as much as possible.
typedef struct {
GdaObjectClass parent_class;
} GdaDataAccessWrapperClass;
typedef struct _GdaDataAccessWrapperPrivate GdaDataAccessWrapperPrivate;
GdaDataModel* gda_data_access_wrapper_new (GdaDataModel *model);
Creates a new GdaDataModel object which buffers the rows of model. This object is usefull
only if model can only be accessed using cursor based method.
model : |
a GdaDataModel |
| Returns : | a pointer to the newly created GdaDataModel. |
gboolean gda_data_access_wrapper_row_exists
(GdaDataAccessWrapper *wrapper,
gint row);
Tests if the wrapper model of wrapper has a row number row
wrapper : |
a GdaDataAccessWrapper objects |
row : |
a row number to test existance |
| Returns : | TRUE if row number row exists
|