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GNOME Data Access 4.0 manual | ![]() |
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GdaSqlParser* gda_server_provider_internal_get_parser (GdaServerProvider *prov); gboolean gda_server_provider_perform_operation_default (GdaServerProvider *provider, GdaConnection *cnc, GdaServerOperation *op, GError **error); GdaDataHandler* gda_server_provider_get_data_handler_default (GdaServerProvider *provider, GdaConnection *cnc, GType type, const gchar *dbms_type); GdaDataHandler* gda_server_provider_handler_find (GdaServerProvider *prov, GdaConnection *cnc, GType g_type, const gchar *dbms_type); void gda_server_provider_handler_declare (GdaServerProvider *prov, GdaDataHandler *dh, GdaConnection *cnc, GType g_type, const gchar *dbms_type); gchar* gda_server_provider_find_file (GdaServerProvider *prov, const gchar *inst_dir, const gchar *filename); gchar* gda_server_provider_load_file_contents (const gchar *inst_dir, const gchar *data_dir, const gchar *filename); void gda_connection_internal_set_provider_data (GdaConnection *cnc, gpointer data, GDestroyNotify destroy_func); gpointer gda_connection_internal_get_provider_data (GdaConnection *cnc); void gda_virtual_connection_internal_set_provider_data (GdaVirtualConnection *vcnc, gpointer data, GDestroyNotify destroy_func); gpointer gda_virtual_connection_internal_get_provider_data (GdaVirtualConnection *cnc); void gda_connection_add_event (GdaConnection *cnc, GdaConnectionEvent *event); GdaConnectionEvent* gda_connection_add_event_string (GdaConnection *cnc, const gchar *str, ...); void gda_connection_clear_events_list (GdaConnection *cnc); GdaConnectionEvent* gda_connection_event_new (GdaConnectionEventType type); void gda_connection_event_set_event_type (GdaConnectionEvent *event, GdaConnectionEventType type); void gda_connection_event_set_description (GdaConnectionEvent *event, const gchar *description); void gda_connection_event_set_code (GdaConnectionEvent *event, glong code); void gda_connection_event_set_gda_code (GdaConnectionEvent *event, GdaConnectionEventCode code); void gda_connection_event_set_source (GdaConnectionEvent *event, const gchar *source); void gda_connection_event_set_sqlstate (GdaConnectionEvent *event, const gchar *sqlstate); void gda_connection_add_prepared_statement (GdaConnection *cnc, GdaStatement *gda_stmt, GdaPStmt *prepared_stmt); void gda_connection_del_prepared_statement (GdaConnection *cnc, GdaStatement *gda_stmt); GdaPStmt* gda_connection_get_prepared_statement (GdaConnection *cnc, GdaStatement *gda_stmt); void gda_connection_internal_transaction_started (GdaConnection *cnc, const gchar *parent_trans, const gchar *trans_name, GdaTransactionIsolation isol_level); void gda_connection_internal_transaction_rolledback (GdaConnection *cnc, const gchar *trans_name); void gda_connection_internal_transaction_committed (GdaConnection *cnc, const gchar *trans_name); void gda_connection_internal_statement_executed (GdaConnection *cnc, GdaStatement *stmt, GdaSet *params, GdaConnectionEvent *error); void gda_connection_internal_savepoint_added (GdaConnection *cnc, const gchar *parent_trans, const gchar *svp_name); void gda_connection_internal_savepoint_rolledback (GdaConnection *cnc, const gchar *svp_name); void gda_connection_internal_savepoint_removed (GdaConnection *cnc, const gchar *svp_name); void gda_connection_internal_change_transaction_state (GdaConnection *cnc, GdaTransactionStatusState newstate);
The methods mentionned in this section are reserved for database providers implementatins and should not bu used by developers outside that scope.
GdaSqlParser* gda_server_provider_internal_get_parser (GdaServerProvider *prov);
This is a factory method to get a unique instance of a GdaSqlParser object for each GdaServerProvider object Don't unref() it.
prov : | |
Returns : | a GdaSqlParser |
gboolean gda_server_provider_perform_operation_default (GdaServerProvider *provider, GdaConnection *cnc, GdaServerOperation *op, GError **error);
Performs the operation described by op, using the SQL from the rendering of the operation
provider : | a GdaServerProvider object |
cnc : | a GdaConnection object which will be used to perform an action, or NULL |
op : | a GdaServerOperation object |
error : | a place to store an error, or NULL |
Returns : | TRUE if no error occurred |
GdaDataHandler* gda_server_provider_get_data_handler_default (GdaServerProvider *provider, GdaConnection *cnc, GType type, const gchar *dbms_type);
Provides the implementation when the default Libgda's data handlers must be used
provider : | a server provider. |
cnc : | a GdaConnection object, or NULL |
type : | |
dbms_type : | a DBMS type definition |
Returns : | a GdaDataHandler, or NULL |
GdaDataHandler* gda_server_provider_handler_find (GdaServerProvider *prov, GdaConnection *cnc, GType g_type, const gchar *dbms_type);
prov : | |
cnc : | |
g_type : | |
dbms_type : | |
Returns : |
void gda_server_provider_handler_declare (GdaServerProvider *prov, GdaDataHandler *dh, GdaConnection *cnc, GType g_type, const gchar *dbms_type);
prov : | |
dh : | |
cnc : | |
g_type : | |
dbms_type : |
gchar* gda_server_provider_find_file (GdaServerProvider *prov, const gchar *inst_dir, const gchar *filename);
prov : | |
inst_dir : | |
filename : | |
Returns : |
gchar* gda_server_provider_load_file_contents (const gchar *inst_dir, const gchar *data_dir, const gchar *filename);
inst_dir : | |
data_dir : | |
filename : | |
Returns : |
void gda_connection_internal_set_provider_data (GdaConnection *cnc, gpointer data, GDestroyNotify destroy_func);
Note: calling this function more than once will not make it call destroy_func on any previously set opaque data, you'll have to do it yourself.
cnc : | a GdaConnection object |
data : | an opaque structure, known only to the provider for which cnc is opened |
destroy_func : | function to call when the connection closes and data needs to be destroyed |
gpointer gda_connection_internal_get_provider_data (GdaConnection *cnc);
Get the opaque pointer previously set using gda_connection_internal_set_provider_data(). If it's not set, then add a connection event and returns NULL
cnc : | a GdaConnection object |
Returns : | the pointer to the opaque structure set using gda_connection_internal_set_provider_data() |
void gda_virtual_connection_internal_set_provider_data (GdaVirtualConnection *vcnc, gpointer data, GDestroyNotify destroy_func);
Note: calling this function more than once will not make it call destroy_func on any previously set opaque data, you'll have to do it yourself.
vcnc : | |
data : | |
destroy_func : |
gpointer gda_virtual_connection_internal_get_provider_data (GdaVirtualConnection *cnc);
Get the opaque pointer previously set using gda_virtual_connection_internal_set_provider_data(). If it's not set, then add a connection event and returns NULL
cnc : | |
Returns : |
void gda_connection_add_event (GdaConnection *cnc, GdaConnectionEvent *event);
Adds an event to the given connection. This function is usually called by providers, to inform clients of events that happened during some operation.
As soon as a provider (or a client, it does not matter) calls this function with an event object which is an error, the connection object emits the "error" signal, to which clients can connect to be informed of events.
WARNING: the reference to the event object is stolen by this function!
cnc : | a GdaConnection object. |
event : | is stored internally, so you don't need to unref it. |
GdaConnectionEvent* gda_connection_add_event_string (GdaConnection *cnc, const gchar *str, ...);
Adds a new error to the given connection object. This is just a convenience function that simply creates a GdaConnectionEvent and then calls gda_server_connection_add_error.
cnc : | a GdaConnection object. |
str : | a format string (see the printf(3) documentation). |
... : | the arguments to insert in the error message. |
Returns : | a new GdaConnectionEvent object, however the caller does not hold a reference to the returned object, and if need be the caller must call g_object_ref() on it. |
void gda_connection_clear_events_list (GdaConnection *cnc);
This function lets you clear the list of GdaConnectionEvent's of the given connection.
cnc : | a GdaConnection object. |
GdaConnectionEvent* gda_connection_event_new (GdaConnectionEventType type);
type : | |
Returns : |
void gda_connection_event_set_event_type (GdaConnectionEvent *event, GdaConnectionEventType type);
Sets event's severity (from a simple notice to a fatal event) This function should not be called directly.
event : | a GdaConnectionEvent object |
type : | the severity of the event |
void gda_connection_event_set_description (GdaConnectionEvent *event, const gchar *description);
Sets event's description. This function should not be called directly.
event : | a GdaConnectionEvent. |
description : | a description. |
void gda_connection_event_set_code (GdaConnectionEvent *event, glong code);
Sets event's code: the code is specific to the provider being used. If you want to have a common understanding of the event codes, use gda_connection_event_get_gda_code() instead.
This function should not be called directly
event : | a GdaConnectionEvent. |
code : | a code. |
void gda_connection_event_set_gda_code (GdaConnectionEvent *event, GdaConnectionEventCode code);
Sets event's gda code: that code is standardized by the libgda library. If you want to specify the corresponding provider specific code, use gda_connection_event_get_code() or gda_connection_event_get_sqlstate() instead.
This function should not be called directly
event : | a GdaConnectionEvent |
code : | a code |
void gda_connection_event_set_source (GdaConnectionEvent *event, const gchar *source);
Sets event's source; this function should not be called directly
event : | a GdaConnectionEvent. |
source : | a source. |
void gda_connection_event_set_sqlstate (GdaConnectionEvent *event, const gchar *sqlstate);
Changes the SQLSTATE code of event, this function should not be called directly
Sets event's SQL state.
event : | a GdaConnectionEvent. |
sqlstate : | SQL state. |
void gda_connection_add_prepared_statement (GdaConnection *cnc, GdaStatement *gda_stmt, GdaPStmt *prepared_stmt);
Declares that prepared_stmt is a prepared statement object associated to gda_stmt within the connection (meaning the connection increments the reference counter of prepared_stmt).
If gda_stmt changes or is destroyed, the the association will be lost and the connection will lose the reference it has on prepared_stmt.
cnc : | a GdaConnection object |
gda_stmt : | a GdaStatement object |
prepared_stmt : | a prepared statement object (as a GdaPStmt object, or more likely a descendant) |
void gda_connection_del_prepared_statement (GdaConnection *cnc, GdaStatement *gda_stmt);
Removes any prepared statement associated to gda_stmt in cnc: this undoes what gda_connection_add_prepared_statement() does.
cnc : | a GdaConnection object |
gda_stmt : | a GdaStatement object |
GdaPStmt* gda_connection_get_prepared_statement (GdaConnection *cnc, GdaStatement *gda_stmt);
Retreives a pointer to an object representing a prepared statement for gda_stmt within cnc. The association must have been done using gda_connection_add_prepared_statement().
cnc : | a GdaConnection object |
gda_stmt : | a GdaStatement object |
Returns : | the prepared statement, or NULL if no association exists |
void gda_connection_internal_transaction_started (GdaConnection *cnc, const gchar *parent_trans, const gchar *trans_name, GdaTransactionIsolation isol_level);
cnc : | |
parent_trans : | |
trans_name : | |
isol_level : |
void gda_connection_internal_transaction_rolledback (GdaConnection *cnc, const gchar *trans_name);
cnc : | |
trans_name : |
void gda_connection_internal_transaction_committed (GdaConnection *cnc, const gchar *trans_name);
cnc : | |
trans_name : |
void gda_connection_internal_statement_executed (GdaConnection *cnc, GdaStatement *stmt, GdaSet *params, GdaConnectionEvent *error);
cnc : | |
stmt : | |
params : | |
error : |
void gda_connection_internal_savepoint_added (GdaConnection *cnc, const gchar *parent_trans, const gchar *svp_name);
cnc : | |
parent_trans : | |
svp_name : |
void gda_connection_internal_savepoint_rolledback (GdaConnection *cnc, const gchar *svp_name);
cnc : | |
svp_name : |
void gda_connection_internal_savepoint_removed (GdaConnection *cnc, const gchar *svp_name);
cnc : | |
svp_name : |
void gda_connection_internal_change_transaction_state (GdaConnection *cnc, GdaTransactionStatusState newstate);
cnc : | |
newstate : |