Struct holochain_state::query::chain_head::ChainHeadQuery
source · pub struct ChainHeadQuery(/* private fields */);
Implementations§
source§impl ChainHeadQuery
impl ChainHeadQuery
pub fn new(agent: Arc<AgentPubKey>) -> Self
Trait Implementations§
source§impl Clone for ChainHeadQuery
impl Clone for ChainHeadQuery
source§fn clone(&self) -> ChainHeadQuery
fn clone(&self) -> ChainHeadQuery
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresource§impl Debug for ChainHeadQuery
impl Debug for ChainHeadQuery
source§impl Query for ChainHeadQuery
impl Query for ChainHeadQuery
type Item = Judged<SignedHashed<Action>>
type State = Option<SignedHashed<Action>>
type Output = Option<(HoloHash<Action>, u32, Timestamp)>
fn query(&self) -> String
fn params(&self) -> Vec<Params<'_>>
fn init_fold(&self) -> StateQueryResult<Self::State>
fn as_filter(&self) -> Box<dyn Fn(&QueryData<Self>) -> bool>
fn fold( &self, state: Self::State, sh: Self::Item ) -> StateQueryResult<Self::State>
fn render<S>(
&self,
state: Self::State,
_stores: S
) -> StateQueryResult<Self::Output>where
S: Store,
fn as_map(&self) -> Arc<dyn Fn(&Row<'_>) -> StateQueryResult<Self::Item>>
fn run<S>(&self, stores: S) -> StateQueryResult<Self::Output>
Auto Trait Implementations§
impl RefUnwindSafe for ChainHeadQuery
impl Send for ChainHeadQuery
impl Sync for ChainHeadQuery
impl Unpin for ChainHeadQuery
impl UnwindSafe for ChainHeadQuery
Blanket Implementations§
§impl<T> Any for T
impl<T> Any for T
§fn type_id_compat(&self) -> TypeId
fn type_id_compat(&self) -> TypeId
TODO: once 1.33.0 is the minimum supported compiler version, remove
Any::type_id_compat and use StdAny::type_id instead.
https://github.com/rust-lang/rust/issues/27745
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impl<T> ArchivePointee for T
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type ArchivedMetadata = ()
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_: &<T as ArchivePointee>::ArchivedMetadata
) -> <T as Pointee>::Metadata
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source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
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T: ?Sized,
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&self,
deserializer: &mut D
) -> Result<With<T, W>, <D as Fallible>::Error>
fn deserialize( &self, deserializer: &mut D ) -> Result<With<T, W>, <D as Fallible>::Error>
Deserializes using the given deserializer
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impl<T> FutureExt for T
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fn instrument(self, span: Span) -> Instrumented<Self>
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impl<T> Pointable for T
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SS: SubsetOf<SP>,
impl<SS, SP> SupersetOf<SS> for SPwhere
SS: SubsetOf<SP>,
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self
from the equivalent element of its
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Use with care! Same as
self.to_subset
but without any property checks. Always succeeds.§fn from_subset(element: &SS) -> SP
fn from_subset(element: &SS) -> SP
The inclusion map: converts
self
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