Enum async_mwmr::Item

pub enum Item<'a, K, V, B, O> {
    Pending(EntryRef<'a, K, V>),
    Borrowed(B),
    Owned(O),
}

An item that is either prefetched or fetched from the database.

Variants

Pending(EntryRef<'a, K, V>)

A pending item, which means that this item is still in a transaction, and not yet commit to the database.

Borrowed(B)

An item comes from the database, some db implementation is Copy-on-Write, so this enum varint allows such kind of behavior

Owned(O)

An item comes from the database, some db implementation is not Copy-on-Write, so this enum varint allows such kind of behavior

Implementations

impl<'a, K, V, B, O> Item<'a, K, V, B, O>

pub fn unwrap_pending(&self) -> EntryRef<'a, K, V>

Returns the prefetched item.

Panic

If the item is not prefetched

pub fn unwrap_borrow(&self) -> &B

Returns the borrowed item.

Panic

If the item is not borrowed

pub fn unwrap_owned(self) -> O

Returns the owned item.

Panic

If the item is not owned

pub fn unwrap_owned_ref(&self) -> &O

Returns the owned item ref.

Panic

If the item is not owned

pub fn unwrap_committed(self) -> Either<B, O>

Returns the committed item.

Panic

If the item is not committed

pub fn unwrap_committed_ref(&self) -> Either<&B, &O>

Returns the committed item ref.

Panic

If the item is not committed