Struct Message 

pub struct Message {
    pub message_id: String,
    pub context_id: String,
    pub task_id: String,
    pub role: EnumValue<Role>,
    pub parts: Vec<Part>,
    pub metadata: MessageField<Struct>,
    pub extensions: Vec<String>,
    pub reference_task_ids: Vec<String>,
    /* private fields */
}

Fields

message_id: String

Field 1: message_id

context_id: String

Field 2: context_id

task_id: String

Field 3: task_id

role: EnumValue<Role>

Field 4: role

parts: Vec<Part>

Field 5: parts

metadata: MessageField<Struct>

Field 6: metadata

extensions: Vec<String>

Field 7: extensions

reference_task_ids: Vec<String>

Field 8: reference_task_ids

Implementations

impl Message

pub fn builder() -> MessageBuilder

Create a new Message builder

pub fn user_text(text: String, message_id: String) -> Self

Create a new user message with a single text part

pub fn agent_text(text: String, message_id: String) -> Self

Create a new agent message with a single text part

pub fn add_part(&mut self, part: Part)

Add a part to this message

pub fn add_part_validated(&mut self, part: Part) -> Result<(), A2AError>

Add a part to this message, validating and returning Result

pub fn validate(&self) -> Result<(), A2AError>

Validate a message

impl Message

pub const TYPE_URL: &'static str = "type.googleapis.com/lf.a2a.v1.Message"

Protobuf type URL for this message, for use with Any::pack and Any::unpack_if.

Format: type.googleapis.com/<fully.qualified.TypeName>

Trait Implementations

impl Clone for Message

fn clone(&self) -> Message

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Message

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

Formats the value using the given formatter.

impl Default for Message

fn default() -> Message

Returns the “default value” for a type.

impl DefaultInstance for Message

fn default_instance() -> &'static Self

Return a reference to the single default instance of this type.

impl<'de> Deserialize<'de> for Message

where Message: Default,

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl ExtensionSet for Message

const PROTO_FQN: &'static str = "lf.a2a.v1.Message"

Fully-qualified proto type name of this message (no leading dot), e.g. "google.protobuf.FieldOptions".

fn unknown_fields(&self) -> &UnknownFields

Immutable access to the extendee’s unknown-field storage.

fn unknown_fields_mut(&mut self) -> &mut UnknownFields

Mutable access to the extendee’s unknown-field storage.

fn extension<C>(&self, ext: &Extension<C>) -> <C as ExtensionCodec>::Output

where C: ExtensionCodec,

Read an extension value.

fn set_extension<C>( &mut self, ext: &Extension<C>, value: <C as ExtensionCodec>::Value, )

where C: ExtensionCodec,

Write an extension value, replacing any prior occurrences.

fn has_extension<C>(&self, ext: &Extension<C>) -> bool

where C: ExtensionCodec,

Returns true if any record at the extension’s field number is present.

fn clear_extension<C>(&mut self, ext: &Extension<C>)

where C: ExtensionCodec,

Remove all records at the extension’s field number.

fn extension_or_default<C>( &self, ext: &Extension<C>, ) -> <C as ExtensionCodec>::Value

where C: ExtensionCodec<Output = Option<<C as ExtensionCodec>::Value>>, <C as ExtensionCodec>::Value: Default,

Read a singular extension value, returning the proto2 [default = ...] value if absent, or the type’s Default if no proto default was declared.

impl From<Message> for Option<Payload>

fn from(v: Message) -> Self

Converts to this type from the input type.

impl From<Message> for Option<Payload>

fn from(v: Message) -> Self

Converts to this type from the input type.

impl From<Message> for Payload

fn from(v: Message) -> Self

Converts to this type from the input type.

impl From<Message> for Payload

fn from(v: Message) -> Self

Converts to this type from the input type.

impl Message for Message

fn compute_size(&self) -> u32

Returns the total encoded size in bytes.

The result is a u32; the protobuf specification requires all messages to fit within 2 GiB (2,147,483,647 bytes), so a compliant message will never overflow this type.

fn write_to(&self, buf: &mut impl BufMut)

Write this message’s encoded bytes to a buffer.

fn merge_field( &mut self, tag: Tag, buf: &mut impl Buf, depth: u32, ) -> Result<(), DecodeError>

Processes a single already-decoded tag and its associated field data from buf.

fn cached_size(&self) -> u32

The cached encoded size from the last compute_size() call.

fn clear(&mut self)

Clear all fields to their default values.

fn encode(&self, buf: &mut impl BufMut)

Convenience: compute size, then write. This is the primary encoding API.

fn encode_length_delimited(&self, buf: &mut impl BufMut)

Encode this message as a length-delimited byte sequence.

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

Encode this message to a new Vec<u8>.

fn encode_to_bytes(&self) -> Bytes

Encode this message to a new bytes::Bytes.

fn decode(buf: &mut impl Buf) -> Result<Self, DecodeError>

where Self: Sized,

Decode a message from a buffer.

fn decode_from_slice(data: &[u8]) -> Result<Self, DecodeError>

where Self: Sized,

Decode a message from a byte slice.

fn decode_length_delimited(buf: &mut impl Buf) -> Result<Self, DecodeError>

where Self: Sized,

Decode a length-delimited message from a buffer.

fn merge_to_limit( &mut self, buf: &mut impl Buf, depth: u32, limit: usize, ) -> Result<(), DecodeError>

Merge fields from a buffer until buf.remaining() reaches limit.

fn merge_group( &mut self, buf: &mut impl Buf, depth: u32, field_number: u32, ) -> Result<(), DecodeError>

Merges a group-encoded message from buf, reading fields until an EndGroup tag with the given field_number is encountered.

fn merge(&mut self, buf: &mut impl Buf, depth: u32) -> Result<(), DecodeError>

Merge fields from a buffer into this message.

fn merge_from_slice(&mut self, data: &[u8]) -> Result<(), DecodeError>

Merge fields from a byte slice into this message.

fn merge_length_delimited( &mut self, buf: &mut impl Buf, depth: u32, ) -> Result<(), DecodeError>

Merge fields from a length-delimited sub-message payload into this message.

impl PartialEq for Message

fn eq(&self, other: &Message) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl ProtoElemJson for Message

fn serialize_proto_json<S: Serializer>( v: &Self, s: S, ) -> Result<S::Ok, S::Error>

Serialize this value with proto3 JSON semantics.

fn deserialize_proto_json<'de, D: Deserializer<'de>>( d: D, ) -> Result<Self, D::Error>

Deserialize a value with proto3 JSON semantics.

impl Serialize for Message

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Message