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| TrackerSparqlConnection * | tracker_sparql_cursor_get_connection () |
| gint | tracker_sparql_cursor_get_n_columns () |
| const gchar * | tracker_sparql_cursor_get_string () |
| gboolean | tracker_sparql_cursor_get_boolean () |
| gdouble | tracker_sparql_cursor_get_double () |
| gint64 | tracker_sparql_cursor_get_integer () |
| TrackerSparqlValueType | tracker_sparql_cursor_get_value_type () |
| const gchar * | tracker_sparql_cursor_get_variable_name () |
| void | tracker_sparql_cursor_close () |
| gboolean | tracker_sparql_cursor_is_bound () |
| gboolean | tracker_sparql_cursor_next () |
| void | tracker_sparql_cursor_next_async () |
| gboolean | tracker_sparql_cursor_next_finish () |
| void | tracker_sparql_cursor_rewind () |
TrackerSparqlCursor is an object which provides methods to iterate the results of a query to the Tracker Store.
TrackerSparqlConnection *
tracker_sparql_cursor_get_connection (TrackerSparqlCursor *self);
the TrackerSparqlConnection associated with this TrackerSparqlCursor. The returned object must not be unreferenced by the caller.
Since: 0.10
gint
tracker_sparql_cursor_get_n_columns (TrackerSparqlCursor *self);
This method should only be called after a successful
tracker_sparql_cursor_next(); otherwise its return value
will be undefined.
Since: 0.10
const gchar * tracker_sparql_cursor_get_string (TrackerSparqlCursor *self,gint column,glong *length);
Retrieves a string representation of the data in the current
row in column
.
self |
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column |
column number to retrieve (first one is 0) |
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length |
length of the returned string |
a string which must not be freed. NULL is returned if
the column is not in the [0,n_columns] range.
Since: 0.10
gboolean tracker_sparql_cursor_get_boolean (TrackerSparqlCursor *self,gint column);
Retrieve a boolean for the current row in column
.
Since: 0.10
gdouble tracker_sparql_cursor_get_double (TrackerSparqlCursor *self,gint column);
Retrieve a double for the current row in column
.
Since: 0.10
gint64 tracker_sparql_cursor_get_integer (TrackerSparqlCursor *self,gint column);
Retrieve an integer for the current row in column
.
Since: 0.10
TrackerSparqlValueType tracker_sparql_cursor_get_value_type (TrackerSparqlCursor *self,gint column);
The data type bound to the current row in column
is returned.
Since: 0.10
const gchar * tracker_sparql_cursor_get_variable_name (TrackerSparqlCursor *self,gint column);
Retrieves the variable name for the current row in column
.
Since: 0.10
void
tracker_sparql_cursor_close (TrackerSparqlCursor *self);
Closes the iterator, making it invalid.
Since: 0.12
gboolean tracker_sparql_cursor_is_bound (TrackerSparqlCursor *self,gint column);
If the current row and column
are bound to a value, TRUE is returned.
Since: 0.10
gboolean tracker_sparql_cursor_next (TrackerSparqlCursor *self,GCancellable *cancellable,GError **error);
Iterates to the next result. This is completely synchronous and it may block.
self |
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cancellable |
a GCancellable used to cancel the operation |
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error |
GError for error reporting. |
Since: 0.10
void tracker_sparql_cursor_next_async (TrackerSparqlCursor *self,GCancellable *cancellable,GAsyncReadyCallback _callback_,gpointer _user_data_);
gboolean tracker_sparql_cursor_next_finish (TrackerSparqlCursor *self,GAsyncResult *_res_,GError **error);
Finishes the asynchronous iteration to the next result.
self |
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_res_ |
a GAsyncResult with the result of the operation |
|
error |
GError for error reporting. |
Since: 0.10
void
tracker_sparql_cursor_rewind (TrackerSparqlCursor *self);
Resets the iterator to point back to the first result.
Since: 0.10
struct TrackerSparqlCursor {
GObject parent_instance;
TrackerSparqlCursorPrivate * priv;
};
The TrackerSparqlCursor object represents an iterator of results.
Enumeration with the possible types of the cursor's cells
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Unbound value type |
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Uri value type, rdfs:Resource |
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String value type, xsd:string |
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Integer value type, xsd:integer |
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Double value type, xsd:double |
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Datetime value type, xsd:dateTime |
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Blank node value type |
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Boolean value type, xsd:boolean |
Since: 0.10