Struct holochain_state::query::Txn
source · pub struct Txn<'borrow, 'txn> { /* private fields */ }
Expand description
Wrapper around a transaction reference, to which trait impls are attached
Trait Implementations§
source§impl<'stmt> Store for Txn<'stmt, '_>
impl<'stmt> Store for Txn<'stmt, '_>
source§fn get_entry(&self, hash: &EntryHash) -> StateQueryResult<Option<Entry>>
fn get_entry(&self, hash: &EntryHash) -> StateQueryResult<Option<Entry>>
Get an [
Entry
] from this store.Get an [
Entry
] from this store. Read moresource§fn contains_entry(&self, hash: &EntryHash) -> StateQueryResult<bool>
fn contains_entry(&self, hash: &EntryHash) -> StateQueryResult<bool>
Check if an entry is contained in the store
source§fn contains_action(&self, hash: &ActionHash) -> StateQueryResult<bool>
fn contains_action(&self, hash: &ActionHash) -> StateQueryResult<bool>
Check if an action is contained in the store
source§fn get_action(
&self,
hash: &ActionHash
) -> StateQueryResult<Option<SignedActionHashed>>
fn get_action(
&self,
hash: &ActionHash
) -> StateQueryResult<Option<SignedActionHashed>>
Get an [
SignedActionHashed
] from this store.source§fn get_record(&self, hash: &AnyDhtHash) -> StateQueryResult<Option<Record>>
fn get_record(&self, hash: &AnyDhtHash) -> StateQueryResult<Option<Record>>
Get an [
Record
] from this store.Get an [
Record
] from this store that is either public or
authored by the given key.source§fn contains_hash(&self, hash: &AnyDhtHash) -> StateQueryResult<bool>
fn contains_hash(&self, hash: &AnyDhtHash) -> StateQueryResult<bool>
Check if a hash is contained in the store
Auto Trait Implementations§
impl<'borrow, 'txn> !RefUnwindSafe for Txn<'borrow, 'txn>
impl<'borrow, 'txn> !Send for Txn<'borrow, 'txn>
impl<'borrow, 'txn> !Sync for Txn<'borrow, 'txn>
impl<'borrow, 'txn> Unpin for Txn<'borrow, 'txn>where
'txn: 'borrow,
impl<'borrow, 'txn> !UnwindSafe for Txn<'borrow, 'txn>
Blanket Implementations§
§impl<T> Any for Twhere
T: Any + ?Sized,
impl<T> Any for Twhere
T: Any + ?Sized,
§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
§impl<T> ArchivePointee for T
impl<T> ArchivePointee for T
§type ArchivedMetadata = ()
type ArchivedMetadata = ()
The archived version of the pointer metadata for this type.
§fn pointer_metadata(
_: &<T as ArchivePointee>::ArchivedMetadata
) -> <T as Pointee>::Metadata
fn pointer_metadata(
_: &<T as ArchivePointee>::ArchivedMetadata
) -> <T as Pointee>::Metadata
Converts some archived metadata to the pointer metadata for itself.
§impl<F, W, T, D> Deserialize<With<T, W>, D> for Fwhere
W: DeserializeWith<F, T, D>,
D: Fallible + ?Sized,
F: ?Sized,
impl<F, W, T, D> Deserialize<With<T, W>, D> for Fwhere
W: DeserializeWith<F, T, D>,
D: Fallible + ?Sized,
F: ?Sized,
§fn deserialize(
&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
§impl<T> FutureExt for T
impl<T> FutureExt for T
§fn with_context(self, otel_cx: Context) -> WithContext<Self>
fn with_context(self, otel_cx: Context) -> WithContext<Self>
§fn with_current_context(self) -> WithContext<Self>
fn with_current_context(self) -> WithContext<Self>
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
§impl<T> Pointable for T
impl<T> Pointable for T
§impl<SS, SP> SupersetOf<SS> for SPwhere
SS: SubsetOf<SP>,
impl<SS, SP> SupersetOf<SS> for SPwhere
SS: SubsetOf<SP>,
§fn to_subset(&self) -> Option<SS>
fn to_subset(&self) -> Option<SS>
The inverse inclusion map: attempts to construct
self
from the equivalent element of its
superset. Read more§fn is_in_subset(&self) -> bool
fn is_in_subset(&self) -> bool
Checks if
self
is actually part of its subset T
(and can be converted to it).§fn to_subset_unchecked(&self) -> SS
fn to_subset_unchecked(&self) -> SS
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
to the equivalent element of its superset.