Struct sanakirja::Txn

pub struct Txn<'env> { /* private fields */ }

An immutable transaction.

Trait Implementations

impl<'env> Drop for Txn<'env>

fn drop(&mut self)

Executes the destructor for this type.

impl<'env> Transaction for Txn<'env>

fn iter<'a, K: Representable, V: Representable>(
    &'a self,
    db: &'a Db<K, V>,
    key: Option<(K, Option<V>)>
) -> Cursor<'a, Self, K, V>

Iterate over a database, starting at the first value larger than or equal to (key, value) (and at the smallest key, or smallest value if one or both of them is None).

fn rev_iter<'a, K: Representable, V: Representable>(
    &'a self,
    db: &'a Db<K, V>,
    key: Option<(K, Option<V>)>
) -> RevCursor<'a, Self, K, V>

Iterate over a database in the reverse order, starting from the last binding strictly before k (or from the last binding in the table if k.is_none()).

fn root<K: Representable, V: Representable>(
    &mut self,
    root: usize
) -> Option<Db<K, V>>

Gets the specified root. At most 508 different roots are allowed.

fn get<'a, K: Representable, V: Representable>(
    &'a self,
    root: &Db<K, V>,
    key: K,
    value: Option<V>
) -> Option<V>

Get the smallest value associated to key, or returns the given binding if value is Some(..) and is associated to key in the given database.