Trait sanakirja::Transaction
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[src]
pub trait Transaction: SkipList {
fn iter<'a, K: Representable, V: Representable>(&'a self,
db: &'a Db<K, V>,
key: Option<K>,
value: Option<V>)
-> Cursor<'a, Self, K, V> { ... }
fn root<K: Representable, V: Representable>(&mut self,
root: usize)
-> Option<Db<K, V>> { ... }
fn get<'a, K: Representable, V: Representable>(&'a self,
root: &Db<K, V>,
key: K,
value: Option<V>)
-> Option<V> { ... }
}Trait for operations common to mutable and immutable transactions.
Provided Methods
fn iter<'a, K: Representable, V: Representable>(&'a self,
db: &'a Db<K, V>,
key: Option<K>,
value: Option<V>)
-> Cursor<'a, Self, K, V>
db: &'a Db<K, V>,
key: Option<K>,
value: 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 root<K: Representable, V: Representable>(&mut self,
root: usize)
-> Option<Db<K, V>>
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>
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.