| libgdamm
    4.99.11
    | 
Blobs handling. More...


| Public Member Functions | |
| BlobOp (BlobOp&& src) noexcept | |
| BlobOp& | operator= (BlobOp&& src) noexcept | 
| virtual | ~BlobOp () noexcept | 
| GdaBlobOp* | gobj () | 
| Provides access to the underlying C GObject.  More... | |
| const GdaBlobOp* | gobj () const | 
| Provides access to the underlying C GObject.  More... | |
| GdaBlobOp* | gobj_copy () | 
| Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.  More... | |
| long | get_length () const | 
| long | read (Blob& blob, long offset, long size) | 
| Reads a chunk of bytes from the BLOB accessible through op into blob.  More... | |
| long | write (Blob& blob, long offset) | 
| Writes a chunk of bytes from a blob to the BLOB accessible through op, blob is unchanged after this call.  More... | |
| bool | read_all (Blob& blob) | 
| Reads the whole contents of the blob manipulated by op into blob.  More... | |
| bool | write_all (Blob& blob) | 
| Writes the whole contents of blob into the blob manipulated by op.  More... | |
|  Public Member Functions inherited from Glib::Object | |
| Object (const Object &)=delete | |
| Object & | operator= (const Object &)=delete | 
| Object (Object &&src) noexcept | |
| Object & | operator= (Object &&src) noexcept | 
| void * | get_data (const QueryQuark &key) | 
| void | set_data (const Quark &key, void *data) | 
| void | set_data (const Quark &key, void *data, DestroyNotify notify) | 
| void | remove_data (const QueryQuark &quark) | 
| void * | steal_data (const QueryQuark &quark) | 
| Glib::RefPtr< Glib::Object > | wrap (GObject *object, bool take_copy=false) | 
|  Public Member Functions inherited from Glib::ObjectBase | |
| ObjectBase (const ObjectBase &)=delete | |
| ObjectBase & | operator= (const ObjectBase &)=delete | 
| void | set_property_value (const Glib::ustring &property_name, const Glib::ValueBase &value) | 
| void | get_property_value (const Glib::ustring &property_name, Glib::ValueBase &value) const | 
| void | set_property (const Glib::ustring &property_name, const PropertyType &value) | 
| void | get_property (const Glib::ustring &property_name, PropertyType &value) const | 
| void | connect_property_changed (const Glib::ustring &property_name, const sigc::slot< void > &slot) | 
| sigc::connection | connect_property_changed_with_return (const Glib::ustring &property_name, const sigc::slot< void > &slot) | 
| void | freeze_notify () | 
| void | thaw_notify () | 
| virtual void | reference () const | 
| virtual void | unreference () const | 
| GObject * | gobj () | 
| const GObject * | gobj () const | 
| GObject * | gobj_copy () const | 
|  Public Member Functions inherited from sigc::trackable | |
| trackable () | |
| trackable (const trackable &src) | |
| trackable (trackable &&src) noexcept | |
| ~trackable () | |
| void | add_destroy_notify_callback (void *data, func_destroy_notify func) const | 
| void | notify_callbacks () | 
| trackable & | operator= (const trackable &src) | 
| trackable & | operator= (trackable &&src) noexcept | 
| void | remove_destroy_notify_callback (void *data) const | 
| Static Public Member Functions | |
| static GType | get_type () | 
| Get the GType for this class, for use with the underlying GObject type system.  More... | |
| static Glib::RefPtr< BlobOp > | create () | 
| Protected Member Functions | |
| BlobOp () | |
|  Protected Member Functions inherited from Glib::Object | |
| Object () | |
| Object (const Glib::ConstructParams &construct_params) | |
| Object (GObject *castitem) | |
| virtual | ~Object () noexcept | 
|  Protected Member Functions inherited from Glib::ObjectBase | |
| ObjectBase () | |
| ObjectBase (const char *custom_type_name) | |
| ObjectBase (const std::type_info &custom_type_info) | |
| ObjectBase (ObjectBase &&src) noexcept | |
| ObjectBase & | operator= (ObjectBase &&src) noexcept | 
| virtual | ~ObjectBase () noexcept=0 | 
| void | initialize (GObject *castitem) | 
| void | initialize_move (GObject *castitem, Glib::ObjectBase *previous_wrapper) | 
| Related Functions | |
| (Note that these are not member functions.) | |
| Glib::RefPtr< Gnome::Gda::BlobOp > | wrap (GdaBlobOp* object, bool take_copy=false) | 
| A Glib::wrap() method for this object.  More... | |
| Additional Inherited Members | |
|  Public Types inherited from Glib::Object | |
| typedef void(* | DestroyNotify) (gpointer data) | 
|  Public Types inherited from sigc::trackable | |
| typedef internal::func_destroy_notify | func_destroy_notify | 
Blobs handling.
This object is a base class for individual database providers which support BLOB types. It supports operations to read and write data in a BLOB.
| 
 | noexcept | 
| 
 | virtualnoexcept | 
| 
 | protected | 
| 
 | static | 
| long Gnome::Gda::BlobOp::get_length | ( | ) | const | 
| 
 | static | 
Get the GType for this class, for use with the underlying GObject type system.
| 
 | inline | 
Provides access to the underlying C GObject.
| 
 | inline | 
Provides access to the underlying C GObject.
| GdaBlobOp* Gnome::Gda::BlobOp::gobj_copy | ( | ) | 
Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.
| long Gnome::Gda::BlobOp::read | ( | Blob& | blob, | 
| long | offset, | ||
| long | size | ||
| ) | 
Reads a chunk of bytes from the BLOB accessible through op into blob.
| blob | A Gda::Blob to read data to. | 
| offset | Offset to read from the start of the blob (starts at 0). | 
| size | Maximum number of bytes to read. | 
| bool Gnome::Gda::BlobOp::read_all | ( | Blob& | blob | ) | 
Reads the whole contents of the blob manipulated by op into blob.
| blob | A Gda::Blob to read data to. | 
true if blob->data contains the whole BLOB manipulated by op. | long Gnome::Gda::BlobOp::write | ( | Blob& | blob, | 
| long | offset | ||
| ) | 
Writes a chunk of bytes from a blob to the BLOB accessible through op, blob is unchanged after this call.
If blob has an associated Gda::BlobOp (ie. if blob->op is not 0) then the data to be written using op is the data fetched using blob->op.
| blob | A Gda::Blob which contains the data to write. | 
| offset | Offset to write from the start of the blob (starts at 0). | 
| bool Gnome::Gda::BlobOp::write_all | ( | Blob& | blob | ) | 
Writes the whole contents of blob into the blob manipulated by op.
If necessary the resulting blob is truncated from its previous length.
| blob | A Gda::Blob which contains the data to write. | 
true on success. | 
 | related | 
A Glib::wrap() method for this object.
| object | The C instance. | 
| take_copy | False if the result should take ownership of the C instance. True if it should take a new copy or ref. | 
 1.8.9.1
 1.8.9.1