MgServerDataType

MgServerDataType — Represents a data type in the DBMS

Synopsis




            MgServerDataType;
            MgServerDataTypePrivate;
guint       mg_server_data_type_get_type    (void);
GObject*    mg_server_data_type_new         (MgServer *srv);
void        mg_server_data_type_set_sqlname (MgServerDataType *dt,
                                             const gchar *sqlname);
const gchar* mg_server_data_type_get_sqlname
                                            (MgServerDataType *dt);
void        mg_server_data_type_set_gda_type
                                            (MgServerDataType *dt,
                                             GdaValueType gda_type);
GdaValueType mg_server_data_type_get_gda_type
                                            (MgServerDataType *dt);
void        mg_server_data_type_set_handler (MgServerDataType *dt,
                                             MgDataHandler *dh);
MgDataHandler* mg_server_data_type_get_handler
                                            (MgServerDataType *dt);

Object Hierarchy


  GObject
   +----MgBase
         +----MgServerDataType

Implemented Interfaces

MgServerDataType implements MgXmlStorage.

Properties


  "prop"                 gpointer              : Read / Write

Signal Prototypes


"templ-signal"
            void        user_function      (MgServerDataType *mgserverdatatype,
                                            gpointer user_data);

Description

DBMS systems usually have quite large set of data types (which can sometimes be expanded by users). Each MgServerDataType object represents one data type. The libgda library provides some data types, and so it is possible, for each MgServerDataType object, to get the corresponding libgda data type.

Every data type can be represented by a MgServerDataType (even user defined data types). Complex data types (data types described as the aggregation of several other data types, like C structures) are handled like any other data type and it is not possible to individually access the different components of the complex data type (it is, however, possible to write a plugin for this data type).

It implements the MgXmlStorage interface.

Details

MgServerDataType

typedef struct _MgServerDataType MgServerDataType;


MgServerDataTypePrivate

typedef struct _MgServerDataTypePrivate MgServerDataTypePrivate;


mg_server_data_type_get_type ()

guint       mg_server_data_type_get_type    (void);

Returns :

mg_server_data_type_new ()

GObject*    mg_server_data_type_new         (MgServer *srv);

Creates a new MgServerDataType object

srv : a MgServer object
Returns : the new object

mg_server_data_type_set_sqlname ()

void        mg_server_data_type_set_sqlname (MgServerDataType *dt,
                                             const gchar *sqlname);

Set the SQL name of the data type.

dt : a MgServerDataType object
sqlname :

mg_server_data_type_get_sqlname ()

const gchar* mg_server_data_type_get_sqlname
                                            (MgServerDataType *dt);

Get the DBMS's name of a data type.

dt : a MgServerDataType object
Returns : the name of the data type

mg_server_data_type_set_gda_type ()

void        mg_server_data_type_set_gda_type
                                            (MgServerDataType *dt,
                                             GdaValueType gda_type);

Set the gda type for a data type

dt : a MgServerDataType object
gda_type :

mg_server_data_type_get_gda_type ()

GdaValueType mg_server_data_type_get_gda_type
                                            (MgServerDataType *dt);

Get the gda type of a data type

dt : a MgServerDataType object
Returns : the gda type

mg_server_data_type_set_handler ()

void        mg_server_data_type_set_handler (MgServerDataType *dt,
                                             MgDataHandler *dh);

Forces the MgDataHandler associated with the data type.

dt : a MgServerDataType object
dh : an object which implements the MgDataHandler interface

mg_server_data_type_get_handler ()

MgDataHandler* mg_server_data_type_get_handler
                                            (MgServerDataType *dt);

Get the MgDataHandler associated with the data type.

dt : a MgServerDataType object
Returns : the MgDataHandler

Properties

The "prop" property

  "prop"                 gpointer              : Read / Write

Signals

The "templ-signal" signal

void        user_function                  (MgServerDataType *mgserverdatatype,
                                            gpointer user_data);

mgserverdatatype :the object which received the signal.
user_data :user data set when the signal handler was connected.