Struct holochain_zome_types::action::Update
source · pub struct Update<W = EntryRateWeight> {
pub author: HoloHash<Agent>,
pub timestamp: Timestamp,
pub action_seq: u32,
pub prev_action: HoloHash<Action>,
pub original_action_address: HoloHash<Action>,
pub original_entry_address: HoloHash<Entry>,
pub entry_type: EntryType,
pub entry_hash: HoloHash<Entry>,
pub weight: W,
}
Expand description
A action which specifies that some new Entry content is intended to be an update to some old Entry.
This action semantically updates an entry to a new entry. It has the following effects:
- Create a new Entry
- This is the action of that new entry
- Create a metadata relationship between the original entry and this new action
The original action is required to prevent update loops: If you update A to B and B back to A, and then you don’t know which one came first, or how to break the loop.
Fields§
§timestamp: Timestamp
§action_seq: u32
§prev_action: HoloHash<Action>
§original_action_address: HoloHash<Action>
§original_entry_address: HoloHash<Entry>
§entry_type: EntryType
§entry_hash: HoloHash<Entry>
§weight: W
Implementations§
Trait Implementations§
source§impl ActionUnweighed for Update<()>
impl ActionUnweighed for Update<()>
type Weighed = Update
type Weight = EntryRateWeight
source§fn weighed(self, weight: EntryRateWeight) -> Update
fn weighed(self, weight: EntryRateWeight) -> Update
Add a weight to this unweighed action, making it “weighed”.
The weight is determined by the
weigh
callback, which is run on the
unweighed version of this action.source§fn weightless(self) -> Self::Weighed
fn weightless(self) -> Self::Weighed
Add zero weight to this unweighed action, making it “weighed”.
source§impl ActionWeighed for Update
impl ActionWeighed for Update
type Unweighed = Update<()>
type Weight = EntryRateWeight
source§fn into_action(self) -> Action
fn into_action(self) -> Action
Construct the full Action enum with this variant.
source§fn unweighed(self) -> Update<()>
fn unweighed(self) -> Update<()>
Erase the rate limiting weight info, creating an “unweighed” version
of this action. This is used primarily by validators who need to run the
weigh
callback on an action they received, and want to make sure their
callback is not using the predefined weight to influence the result.source§impl<'arbitrary, W> Arbitrary<'arbitrary> for Update<W>where
W: Arbitrary<'arbitrary>,
impl<'arbitrary, W> Arbitrary<'arbitrary> for Update<W>where
W: Arbitrary<'arbitrary>,
source§fn arbitrary(u: &mut Unstructured<'arbitrary>) -> Result<Update<W>, Error>
fn arbitrary(u: &mut Unstructured<'arbitrary>) -> Result<Update<W>, Error>
Generate an arbitrary value of
Self
from the given unstructured data. Read moresource§fn arbitrary_take_rest(u: Unstructured<'arbitrary>) -> Result<Update<W>, Error>
fn arbitrary_take_rest(u: Unstructured<'arbitrary>) -> Result<Update<W>, Error>
Generate an arbitrary value of
Self
from the entirety of the given
unstructured data. Read moresource§impl<'de, W> Deserialize<'de> for Update<W>where
W: Deserialize<'de>,
impl<'de, W> Deserialize<'de> for Update<W>where
W: Deserialize<'de>,
source§fn deserialize<__D>(
__deserializer: __D
) -> Result<Update<W>, <__D as Deserializer<'de>>::Error>where
__D: Deserializer<'de>,
fn deserialize<__D>(
__deserializer: __D
) -> Result<Update<W>, <__D as Deserializer<'de>>::Error>where
__D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer. Read more
source§impl From<Update> for EntryCreationAction
impl From<Update> for EntryCreationAction
source§fn from(u: Update) -> EntryCreationAction
fn from(u: Update) -> EntryCreationAction
Converts to this type from the input type.
source§impl HashableContent for Update
impl HashableContent for Update
source§fn hash_type(&self) -> <Update as HashableContent>::HashType
fn hash_type(&self) -> <Update as HashableContent>::HashType
The HashType which this content will be hashed to
source§fn hashable_content(&self) -> HashableContentBytes
fn hashable_content(&self) -> HashableContentBytes
Return a subset of the content, either as SerializedBytes “content”,
which will be used to compute the hash, or as an already precomputed
hash which will be used directly
source§impl<W> PartialEq for Update<W>where
W: PartialEq,
impl<W> PartialEq for Update<W>where
W: PartialEq,
source§impl<W> Serialize for Update<W>where
W: Serialize,
impl<W> Serialize for Update<W>where
W: Serialize,
source§fn serialize<__S>(
&self,
__serializer: __S
) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>where
__S: Serializer,
fn serialize<__S>(
&self,
__serializer: __S
) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>where
__S: Serializer,
Serialize this value into the given Serde serializer. Read more
source§impl TryFrom<&Update> for SerializedBytes
impl TryFrom<&Update> for SerializedBytes
§type Error = SerializedBytesError
type Error = SerializedBytesError
The type returned in the event of a conversion error.
source§fn try_from(t: &Update) -> Result<SerializedBytes, SerializedBytesError>
fn try_from(t: &Update) -> Result<SerializedBytes, SerializedBytesError>
Performs the conversion.
source§impl TryFrom<SerializedBytes> for Update
impl TryFrom<SerializedBytes> for Update
§type Error = SerializedBytesError
type Error = SerializedBytesError
The type returned in the event of a conversion error.
source§fn try_from(sb: SerializedBytes) -> Result<Update, SerializedBytesError>
fn try_from(sb: SerializedBytes) -> Result<Update, SerializedBytesError>
Performs the conversion.
source§impl TryFrom<Update> for SerializedBytes
impl TryFrom<Update> for SerializedBytes
§type Error = SerializedBytesError
type Error = SerializedBytesError
The type returned in the event of a conversion error.
source§fn try_from(t: Update) -> Result<SerializedBytes, SerializedBytesError>
fn try_from(t: Update) -> Result<SerializedBytes, SerializedBytesError>
Performs the conversion.
impl<W> Eq for Update<W>where
W: Eq,
impl<W> StructuralPartialEq for Update<W>
Auto Trait Implementations§
impl<W> RefUnwindSafe for Update<W>where
W: RefUnwindSafe,
impl<W> Send for Update<W>where
W: Send,
impl<W> Sync for Update<W>where
W: Sync,
impl<W> Unpin for Update<W>where
W: Unpin,
impl<W> UnwindSafe for Update<W>where
W: UnwindSafe,
Blanket Implementations§
§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.
source§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
§impl<T> CallHasher for T
impl<T> CallHasher for T
§impl<F, W, T, D> Deserialize<With<T, W>, D> for F
impl<F, W, T, D> Deserialize<With<T, W>, D> for F
§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<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Checks if this value is equivalent to the given key. Read more
§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to
key
and return true
if they are equal.source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to
key
and return true
if they are equal.source§impl<T, C> HashableContentExtSync<T> for Cwhere
T: HashTypeSync,
C: HashableContent<HashType = T>,
impl<T, C> HashableContentExtSync<T> for Cwhere
T: HashTypeSync,
C: HashableContent<HashType = T>,
source§fn into_hashed(self) -> HoloHashed<C>
fn into_hashed(self) -> HoloHashed<C>
Move into a HoloHashed
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.§impl<T> Upcastable for T
impl<T> Upcastable for T
§fn upcast_any_ref(&self) -> &(dyn Any + 'static)
fn upcast_any_ref(&self) -> &(dyn Any + 'static)
upcast ref
§fn upcast_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn upcast_any_mut(&mut self) -> &mut (dyn Any + 'static)
upcast mut ref
§fn upcast_any_box(self: Box<T>) -> Box<dyn Any>
fn upcast_any_box(self: Box<T>) -> Box<dyn Any>
upcast boxed dyn