Enum hdk::prelude::Header[−][src]

pub enum Header {
    Dna(Dna),
    AgentValidationPkg(AgentValidationPkg),
    InitZomesComplete(InitZomesComplete),
    CreateLink(CreateLink),
    DeleteLink(DeleteLink),
    OpenChain(OpenChain),
    CloseChain(CloseChain),
    Create(Create),
    Update(Update),
    Delete(Delete),
}

Header contains variants for each type of header.

This struct really defines a local source chain, in the sense that it implements the pointers between hashes that a hash chain relies on, which are then used to check the integrity of data using cryptographic hash functions.

Variants

Dna(Dna)

AgentValidationPkg(AgentValidationPkg)

InitZomesComplete(InitZomesComplete)

CreateLink(CreateLink)

DeleteLink(DeleteLink)

OpenChain(OpenChain)

CloseChain(CloseChain)

Create(Create)

Update(Update)

Delete(Delete)

Implementations

`impl Header`[src]

`pub fn entry_data(&self) -> Option<(&HoloHash<Entry>, &EntryType)>`[src]

Returns the address and entry type of the Entry, if applicable.

`pub fn entry_hash(&self) -> Option<&HoloHash<Entry>>`[src]

`pub fn entry_type(&self) -> Option<&EntryType>`[src]

`pub fn header_type(&self) -> HeaderType`[src]

`pub fn author(&self) -> &HoloHash<Agent>`[src]

returns the public key of the agent who signed this header.

`pub fn timestamp(&self) -> Timestamp`[src]

returns the timestamp of when the header was created

`pub fn header_seq(&self) -> u32`[src]

returns the sequence ordinal of this header

`pub fn prev_header(&self) -> Option<&HoloHash<Header>>`[src]

returns the previous header except for the DNA header which doesn’t have a previous

Trait Implementations

`impl Clone for Header`[src]

`pub fn clone(&self) -> Header`[src]

`pub fn clone_from(&mut self, source: &Self)`1.0.0[src]

`impl Debug for Header`[src]

`pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>`[src]

`impl<'de> Deserialize<'de> for Header`[src]

`pub fn deserialize<D>( deserializer: D ) -> Result<Header, <D as Deserializer<'de>>::Error> where __D: Deserializer<'de>,` [src]

`impl Eq for Header`[src]

`impl<'_> From<&'_ Header> for HeaderType`[src]

`pub fn from(header: &Header) -> HeaderType`[src]

`impl<I> From<I> for Header where I: HeaderInner,` [src]

`pub fn from(i: I) -> Header`[src]

`impl HashableContent for Header`[src]

`type HashType = Header`

The HashType which this content will be hashed to

`pub fn hash_type(&self) -> <Header as HashableContent>::HashType`[src]

`pub fn hashable_content(&self) -> HashableContentBytes`[src]

`impl PartialEq<Header> for Header`[src]

`pub fn eq(&self, other: &Header) -> bool`[src]

`pub fn ne(&self, other: &Header) -> bool`[src]

`impl Serialize for Header`[src]

`pub fn serialize<S>( &self, serializer: S ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error> where S: Serializer,` [src]

`impl StructuralEq for Header`[src]

`impl StructuralPartialEq for Header`[src]

`impl<'_> TryFrom<&'_ Header> for SerializedBytes`[src]

`type Error = SerializedBytesError`

The type returned in the event of a conversion error.

`pub fn try_from(t: &Header) -> Result<SerializedBytes, SerializedBytesError>`[src]

`impl<'a> TryFrom<&'a Header> for &'a DeleteLink`[src]

`type Error = WrongHeaderError`

The type returned in the event of a conversion error.

`pub fn try_from( value: &'a Header ) -> Result<&'a DeleteLink, <&'a DeleteLink as TryFrom<&'a Header>>::Error>`[src]

`impl<'a> TryFrom<&'a Header> for &'a Update`[src]

`type Error = WrongHeaderError`

The type returned in the event of a conversion error.

`pub fn try_from( value: &'a Header ) -> Result<&'a Update, <&'a Update as TryFrom<&'a Header>>::Error>`[src]

`impl<'a> TryFrom<&'a Header> for &'a CreateLink`[src]

`type Error = WrongHeaderError`

The type returned in the event of a conversion error.

`pub fn try_from( value: &'a Header ) -> Result<&'a CreateLink, <&'a CreateLink as TryFrom<&'a Header>>::Error>`[src]

`impl<'a> TryFrom<&'a Header> for &'a Delete`[src]

`type Error = WrongHeaderError`

The type returned in the event of a conversion error.

`pub fn try_from( value: &'a Header ) -> Result<&'a Delete, <&'a Delete as TryFrom<&'a Header>>::Error>`[src]

`impl TryFrom<Header> for SerializedBytes`[src]

`type Error = SerializedBytesError`

The type returned in the event of a conversion error.

`pub fn try_from(t: Header) -> Result<SerializedBytes, SerializedBytesError>`[src]

`impl TryFrom<Header> for DeleteLink`[src]

`type Error = WrongHeaderError`

The type returned in the event of a conversion error.

`pub fn try_from( value: Header ) -> Result<DeleteLink, <DeleteLink as TryFrom<Header>>::Error>`[src]

`impl TryFrom<Header> for CreateLink`[src]

`type Error = WrongHeaderError`

The type returned in the event of a conversion error.

`pub fn try_from( value: Header ) -> Result<CreateLink, <CreateLink as TryFrom<Header>>::Error>`[src]

`impl TryFrom<Header> for Update`[src]

`type Error = WrongHeaderError`

The type returned in the event of a conversion error.

`pub fn try_from( value: Header ) -> Result<Update, <Update as TryFrom<Header>>::Error>`[src]

`impl TryFrom<Header> for Delete`[src]

`type Error = WrongHeaderError`

The type returned in the event of a conversion error.

`pub fn try_from( value: Header ) -> Result<Delete, <Delete as TryFrom<Header>>::Error>`[src]

`impl TryFrom<SerializedBytes> for Header`[src]

`type Error = SerializedBytesError`

The type returned in the event of a conversion error.

`pub fn try_from(sb: SerializedBytes) -> Result<Header, SerializedBytesError>`[src]

Auto Trait Implementations

`impl RefUnwindSafe for Header`

`impl Send for Header`

`impl Sync for Header`

`impl Unpin for Header`

`impl UnwindSafe for Header`

Blanket Implementations

`impl<T> Any for T where T: 'static + ?Sized,` [src]

`pub fn type_id(&self) -> TypeId`[src]

`impl<T> Borrow<T> for T where T: ?Sized,` [src]

`pub fn borrow(&self) -> &T`[src]

`impl<T> BorrowMut<T> for T where T: ?Sized,` [src]

`pub fn borrow_mut(&mut self) -> &mut T`[src]

`impl<T> DeserializeOwned for T where T: for<'de> Deserialize<'de>,` [src]

`impl<Q, K> Equivalent<K> for Q where K: Borrow<Q> + ?Sized, Q: Eq + ?Sized,` [src]

`pub fn equivalent(&self, key: &K) -> bool`[src]

`impl<T> From<T> for T`[src]

`pub fn from(t: T) -> T`[src]

`impl<T> Instrument for T`[src]

`pub fn instrument(self, span: Span) -> Instrumented<Self>ⓘNotable traits for Instrumented<T> impl<T> Future for Instrumented<T> where T: Future, type Output = <T as Future>::Output;`[src]

`pub fn in_current_span(self) -> Instrumented<Self>ⓘNotable traits for Instrumented<T> impl<T> Future for Instrumented<T> where T: Future, type Output = <T as Future>::Output;`[src]

`impl<T, U> Into<U> for T where U: From<T>,` [src]

`pub fn into(self) -> U`[src]

`impl<T> ToOwned for T where T: Clone,` [src]

`type Owned = T`

The resulting type after obtaining ownership.

`pub fn to_owned(&self) -> T`[src]

`pub fn clone_into(&self, target: &mut T)`[src]

`impl<T, U> TryFrom<U> for T where U: Into<T>,` [src]

`type Error = Infallible`

The type returned in the event of a conversion error.

`pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>`[src]

`impl<T, U> TryInto<U> for T where U: TryFrom<T>,` [src]

`type Error = <U as TryFrom<T>>::Error`

The type returned in the event of a conversion error.

`pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>`[src]

`impl<V, T> VZip<V> for T where V: MultiLane<T>,`

`pub fn vzip(self) -> V`