pub struct Connection { /* private fields */ }Expand description
A database connection.
Implementations§
Source§impl Connection
impl Connection
Sourcepub fn open<T: AsRef<Path>>(path: T) -> Result<Connection>
pub fn open<T: AsRef<Path>>(path: T) -> Result<Connection>
Open a connection to a new or existing database.
Sourcepub fn execute<T: AsRef<str>>(&self, statement: T) -> Result<()>
pub fn execute<T: AsRef<str>>(&self, statement: T) -> Result<()>
Execute a statement without processing the resulting rows if any.
Sourcepub fn iterate<T: AsRef<str>, F>(&self, statement: T, callback: F) -> Result<()>
pub fn iterate<T: AsRef<str>, F>(&self, statement: T, callback: F) -> Result<()>
Execute a statement and process the resulting rows as plain text.
The callback is triggered for each row. If the callback returns false,
no more rows will be processed. For large queries and non-string data
types, prepared statement are highly preferable; see prepare.
Sourcepub fn prepare<'l, T: AsRef<str>>(
&'l self,
statement: T,
) -> Result<Statement<'l>>
pub fn prepare<'l, T: AsRef<str>>( &'l self, statement: T, ) -> Result<Statement<'l>>
Create a prepared statement.
Sourcepub fn set_busy_handler<F>(&mut self, callback: F) -> Result<()>
pub fn set_busy_handler<F>(&mut self, callback: F) -> Result<()>
Set a callback for handling busy events.
The callback is triggered when the database cannot perform an operation
due to processing of some other request. If the callback returns true,
the operation will be repeated.
Sourcepub fn set_busy_timeout(&mut self, milliseconds: usize) -> Result<()>
pub fn set_busy_timeout(&mut self, milliseconds: usize) -> Result<()>
Set an implicit callback for handling busy events that tries to repeat rejected operations until a timeout expires.
Sourcepub fn remove_busy_handler(&mut self) -> Result<()>
pub fn remove_busy_handler(&mut self) -> Result<()>
Remove the callback handling busy events.