Struct exar::Database
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pub struct Database { // some 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
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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 Debug for Database
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impl Clone for Database
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fn clone(&self) -> Database
Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
1.0.0
Performs copy-assignment from source
. Read more