| libgdamm Reference Documentation |
Inheritance diagram for Gnome::Gda::BlobOp:

Public Member Functions | ||||
| long | get_length () const | |||
| Opens an existing BLOB. | ||||
| const GdaBlobOp* | gobj () const | |||
| Provides access to the underlying C GObject. | ||||
| GdaBlobOp* | gobj () | |||
| Provides access to the underlying C GObject. | ||||
| GdaBlobOp* | gobj_copy () | |||
| Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. | ||||
| long | read (Blob& blob, long offset, long size) | |||
| Reads a chunk of bytes from the BLOB into blob . | ||||
| bool | read_all (Blob& blob) | |||
| Reads the whole contents of the blob manipulated by op into blob. | ||||
| long | write (Blob& blob, long offset) | |||
| Writes a chunk of bytes from a blob to the BLOB accessible through op . | ||||
| bool | write_all (Blob& blob) | |||
| Writes the whole contents of blob into the blob manipulated by op . | ||||
| virtual | ~BlobOp () | |||
Static Public Member Functions | ||||
| static Glib::RefPtr<BlobOp> | create () | |||
Protected Member Functions | ||||
| BlobOp () | ||||
Related Functions | ||||
| (Note that these are not member functions.) | ||||
| Glib::RefPtr<Gnome::Gda::BlobOp> | wrap (GdaBlobOp* object, bool take_copy=false) | |||
| ||||
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.
| virtual Gnome::Gda::BlobOp::~BlobOp | ( | ) | [virtual] |
| Gnome::Gda::BlobOp::BlobOp | ( | ) | [protected] |
| static Glib::RefPtr<BlobOp> Gnome::Gda::BlobOp::create | ( | ) | [static] |
| long Gnome::Gda::BlobOp::get_length | ( | ) | const |
Opens an existing BLOB.
The BLOB must be initialized by gda_connection_create_blob or obtained from a G::Value. FIXME: gda_connection_create_blob() no longer exists.
| const GdaBlobOp* Gnome::Gda::BlobOp::gobj | ( | ) | const [inline] |
| GdaBlobOp* Gnome::Gda::BlobOp::gobj | ( | ) | [inline] |
| 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 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 | 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.
| Glib::RefPtr<Gnome::Gda::BlobOp> wrap | ( | GdaBlobOp * | object, | |
| bool | take_copy = false | |||
| ) | [related] |
| 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. |