Struct exar::Database

pub struct Database { /* fields omitted */ }

Exar DB's main component, containing the database configuration and the references to the collections of events created. It is used to create new connections.

Examples

extern crate exar;

use exar::*;

let config = DatabaseConfig::default();
let mut db = Database::new(config);

let collection_name = "test";
let connection = db.connect(collection_name).unwrap();

Methods

impl Database

fn new(config: DatabaseConfig) -> Database

Creates a new instance of the database with the given configuration.

fn connect(
    &mut self,
    collection_name: &str
) -> Result<Connection, DatabaseError>

Returns a connection instance with the given name or a DatabaseError if a failure occurs.

fn get_collection(
    &mut self,
    collection_name: &str
) -> Result<Arc<Mutex<Collection>>, DatabaseError>

Returns an existing collection instance with the given name wrapped into an Arc/Mutex or a DatabaseError if a failure occurs, it creates a new collection if it does not exist.

fn create_collection(
    &mut self,
    collection_name: &str
) -> Result<Arc<Mutex<Collection>>, DatabaseError>

Creates and returns a new collection instance with the given name wrapped into an Arc/Mutex or a DatabaseError if a failure occurs.

fn drop_collection(
    &mut self,
    collection_name: &str
) -> Result<(), DatabaseError>

Drops the collection with the given name or returns an error if a failure occurs.

fn contains_collection(&self, collection_name: &str) -> bool

Returns wether a collection with the given name exists.

Trait Implementations

impl Clone for Database

fn clone(&self) -> Database

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Database

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.