Struct cosmwasm_storage::ReadonlyBucket
source · pub struct ReadonlyBucket<'a, T>where
T: Serialize + DeserializeOwned,{ /* private fields */ }
👎Deprecated: The crate cosmwasm-storage is unmaintained and will be removed in CosmWasm 2.0. Please consider migrating to cw-storage-plus or simple cosmwasm-std storage calls.
Implementations§
source§impl<'a, T> ReadonlyBucket<'a, T>where
T: Serialize + DeserializeOwned,
impl<'a, T> ReadonlyBucket<'a, T>where
T: Serialize + DeserializeOwned,
pub fn new(storage: &'a dyn Storage, namespace: &[u8]) -> Self
pub fn multilevel(storage: &'a dyn Storage, namespaces: &[&[u8]]) -> Self
sourcepub fn load(&self, key: &[u8]) -> StdResult<T>
pub fn load(&self, key: &[u8]) -> StdResult<T>
load will return an error if no data is set at the given key, or on parse error
sourcepub fn may_load(&self, key: &[u8]) -> StdResult<Option<T>>
pub fn may_load(&self, key: &[u8]) -> StdResult<Option<T>>
may_load will parse the data stored at the key if present, returns Ok(None) if no data there. returns an error on issues parsing
pub fn range<'b>( &'b self, start: Option<&[u8]>, end: Option<&[u8]>, order: Order ) -> Box<dyn Iterator<Item = StdResult<Record<T>>> + 'b>
Auto Trait Implementations§
impl<'a, T> !RefUnwindSafe for ReadonlyBucket<'a, T>
impl<'a, T> !Send for ReadonlyBucket<'a, T>
impl<'a, T> !Sync for ReadonlyBucket<'a, T>
impl<'a, T> Unpin for ReadonlyBucket<'a, T>where
T: Unpin,
impl<'a, T> !UnwindSafe for ReadonlyBucket<'a, T>
Blanket Implementations§
§impl<U> As for U
impl<U> As for U
§fn as_<T>(self) -> Twhere
T: CastFrom<U>,
fn as_<T>(self) -> Twhere
T: CastFrom<U>,
Casts
self
to type T
. The semantics of numeric casting with the as
operator are followed, so <T as As>::as_::<U>
can be used in the same way as T as U
for numeric conversions. Read moresource§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more