Struct Payload 

pub struct Payload<T>(/* private fields */);

Typed wrapper around the user’s domain event value.

Marked with #[serde(transparent)], so serialization produces exactly the same JSON as the inner T — wrapping an existing type in Payload does not change its on-the-wire representation.

Implementations

impl<T> Payload<T>

where T: Debug + Clone + Serialize + Send + Sync,

pub fn new(payload: T) -> Self

Wraps an owned payload value.

pub fn from_ref(value: &T) -> Self

Wraps a payload by cloning from a borrowed reference.

Convenient when the caller needs to keep ownership of the original value (for logging, further processing, etc.).

pub fn as_value(&self) -> &T

Returns a borrowed reference to the inner payload.

Trait Implementations

impl<T: Clone> Clone for Payload<T>

fn clone(&self) -> Payload<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for Payload<T>

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

Formats the value using the given formatter.

impl<'r, DB: Database, T> Decode<'r, DB> for Payload<T>

where T: Decode<'r, DB>,

fn decode( value: <DB as Database>::ValueRef<'r>, ) -> Result<Self, Box<dyn Error + Send + Sync + 'static>>

Decode a new value of this type using a raw value from the database.

impl<'de, T> Deserialize<'de> for Payload<T>

where T: Deserialize<'de>,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<'q, DB: Database, T> Encode<'q, DB> for Payload<T>

where T: Encode<'q, DB>,

fn encode_by_ref( &self, buf: &mut <DB as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, BoxDynError>

Writes the value of self into buf without moving self.

fn produces(&self) -> Option<DB::TypeInfo>

fn size_hint(&self) -> usize

fn encode( self, buf: &mut <DB as Database>::ArgumentBuffer<'q>, ) -> Result<IsNull, Box<dyn Error + Send + Sync>>

where Self: Sized,

Writes the value of self into buf in the expected format for the database.

impl<T> PgHasArrayType for Payload<T>

where T: PgHasArrayType,

fn array_type_info() -> PgTypeInfo

fn array_compatible(ty: &PgTypeInfo) -> bool

impl<T> Serialize for Payload<T>

where T: Serialize,

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<DB: Database, T> Type<DB> for Payload<T>

where T: Type<DB>,

fn type_info() -> DB::TypeInfo

Returns the canonical SQL type for this Rust type.

fn compatible(ty: &DB::TypeInfo) -> bool

Determines if this Rust type is compatible with the given SQL type.