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GNOME Data Access 3.0 manual | ![]() |
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Top | Description | Object Hierarchy | Implemented Interfaces | Properties |
struct GdaDataModelBdb; struct GdaDataModelBdbClass; GdaDataModelBdbPrivate; GdaDataModel * gda_data_model_bdb_new (const gchar *filename
,const gchar *db_name
); GSList * gda_data_model_bdb_get_errors (GdaDataModelBdb *model
); void gda_data_model_bdb_clean_errors (GdaDataModelBdb *model
);
"db-name" gchar* : Read / Write / Construct Only "filename" gchar* : Read / Write / Construct Only
The GdaDataModelBdb object allows to access the contents of a Berkeley DB database as a GdaDataModel object.
By default the resulting GdaDataModel contains only two columns (named "key" and "data") of type
GDA_TYPE_BINARY, but this object can be subclassed to convert the key or data part of a BDB record
into several columns (implement the create_key_columns()
, create_data_columns()
, get_key_part()
, and get_data_part()
virtual methods).
struct GdaDataModelBdbClass { GdaObjectClass parent_class; /* virtual methods */ GSList *(*create_key_columns) (GdaDataModelBdb *model); GSList *(*create_data_columns) (GdaDataModelBdb *model); GValue *(*get_key_part) (GdaDataModelBdb *model, gpointer data, gint length, gint part); GValue *(*get_data_part) (GdaDataModelBdb *model, gpointer data, gint length, gint part); gboolean (*update_key_part) (GdaDataModelBdb *model, gpointer data, gint length, gint part, const GValue *value, GError **error); gboolean (*update_data_part) (GdaDataModelBdb *model, gpointer data, gint length, gint part, const GValue *value, GError **error); };
GdaDataModel * gda_data_model_bdb_new (const gchar *filename
,const gchar *db_name
);
Creates a new GdaDataModel object to access the contents of the Berkeley DB file file
,
for the database db_name
if not NULL
|
the name of the database within filename , or NULL
|
Returns : |
a new GdaDataModel |