Struct r2d2_odbc::ODBCConnectionManager

pub struct ODBCConnectionManager { /* fields omitted */ }

Methods

impl ODBCConnectionManager

pub fn new<S: Into<String>>(connection_string: S) -> ODBCConnectionManager

Creates a new ODBCConnectionManager.

Trait Implementations

impl Debug for ODBCConnectionManager

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl ManageConnection for ODBCConnectionManager

An r2d2::ManageConnection for ODBC connections.

Example

extern crate r2d2;
extern crate r2d2_odbc;
extern crate odbc;

use std::thread;
use r2d2_odbc::ODBCConnectionManager;
use odbc::*;

fn main() {
    let manager = ODBCConnectionManager::new("DSN=PostgreSQL");
    let pool = r2d2::Pool::new(manager).unwrap();

    let mut children = vec![];
    for i in 0..10i32 {
        let pool = pool.clone();
        children.push(thread::spawn(move || {
            let pool_conn = pool.get().unwrap();
            let conn = pool_conn.raw();
            let stmt = Statement::with_parent(&conn).unwrap();
            if let Data(mut stmt) = stmt.exec_direct("SELECT version()").unwrap() {
                while let Some(mut cursor) = stmt.fetch().unwrap() {
                    if let Some(val) = cursor.get_data::<&str>(0).unwrap() {
                        print!("THREAD {} {}", i, val);
                    }
                }
            }
        }));
    }
    for child in children {
        let _ = child.join();
    }
}

type Connection = ODBCConnection<'static, AutocommitOn>

The connection type this manager deals with.

type Error = ODBCError

The error type returned by Connections.

fn connect(&self) -> Result<Self::Connection, Self::Error>

Attempts to create a new connection.

fn is_valid(&self, _conn: &mut Self::Connection) -> Result<(), Self::Error>

Determines if the connection is still connected to the database.

fn has_broken(&self, _conn: &mut Self::Connection) -> bool

Quickly determines if the connection is no longer usable.