Struct exonum_supervisor::MigrationState

#[non_exhaustive]pub struct MigrationState {
    pub inner: AsyncEventState,
    pub version: Version,
    // some fields omitted
}

State of a migration.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

inner: AsyncEventState

Migration process state.

version: Version

Current artifact data version.

Methods

impl MigrationState

pub fn new(inner: AsyncEventState, version: Version) -> Self

Creates a new MigrationState object.

pub fn add_state_hash(&mut self, state_hash: Hash) -> Result<(), ExecutionError>

Adds a new state hash to the migration state. If this is a first hash, the expected_hash value will be initialized. Otherwise, provided hash will be compared to expected_hash.

pub fn is_failed(&self) -> bool

Checks whether migration is failed.

pub fn is_pending(&self) -> bool

Checks whether migration is pending.

pub fn update(&mut self, new_state: AsyncEventState, version: Version)

Updates migration state to the new state and artifact.

pub fn fail(&mut self, new_state: AsyncEventState)

Marks migration as failed.

Trait Implementations

impl BinaryValue for MigrationState

fn to_bytes(&self) -> Vec<u8>

Serializes the given value to the vector of bytes.

fn from_bytes(value: Cow<[u8]>) -> Result<Self, Error>

Deserializes the value from the given bytes array.

fn into_bytes(self) -> Vec<u8>

Consumes and serializes the given value to the vector of bytes. This method is faster with the wrapped values, thus if you wouldn't use value after serialization use it.

impl Clone for MigrationState

fn clone(&self) -> MigrationState

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for MigrationState

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for MigrationState

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
    __D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.

impl ProtobufConvert for MigrationState

type ProtoStruct = MigrationState

Type generated from the Protobuf definition.

fn from_pb(pb: Self::ProtoStruct) -> Result<Self, Error>

Performs conversion from the type generated from Protobuf.

fn to_pb(&self) -> Self::ProtoStruct

Performs conversion to the type generated from Protobuf.

impl Serialize for MigrationState

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error> where
    __S: Serializer, 

Serialize this value into the given Serde serializer.