Struct Header 

pub struct Header { /* private fields */ }

Header shared by all AI Process Objects.

Contains standard metadata like ID, type, creator, and timestamps.

Usage

Every AI object struct should flatten this header:

#[derive(Serialize, Deserialize)]
pub struct AIObject {
    #[serde(flatten)]
    header: Header,
    // specific fields...
}

Implementations

impl Header

pub fn new( object_type: ObjectType, created_by: ActorRef, ) -> Result<Self, String>

Create a new Header with default values.

Arguments

• object_type - The specific type of the AI object.
• created_by - The actor (human/agent) creating this object.

pub fn object_id(&self) -> Uuid

pub fn object_type(&self) -> &ObjectType

pub fn header_version(&self) -> u32

pub fn schema_version(&self) -> u32

pub fn created_at(&self) -> DateTime<Utc>

pub fn updated_at(&self) -> DateTime<Utc>

pub fn created_by(&self) -> &ActorRef

pub fn visibility(&self) -> &Visibility

pub fn tags(&self) -> &HashMap<String, String>

pub fn tags_mut(&mut self) -> &mut HashMap<String, String>

pub fn external_ids(&self) -> &HashMap<String, String>

pub fn external_ids_mut(&mut self) -> &mut HashMap<String, String>

pub fn set_object_id(&mut self, object_id: Uuid)

pub fn set_object_type(&mut self, object_type: ObjectType) -> Result<(), String>

pub fn set_header_version(&mut self, header_version: u32) -> Result<(), String>

pub fn set_schema_version(&mut self, schema_version: u32) -> Result<(), String>

pub fn set_created_at(&mut self, created_at: DateTime<Utc>)

pub fn set_updated_at(&mut self, updated_at: DateTime<Utc>)

pub fn set_visibility(&mut self, visibility: Visibility)

pub fn checksum(&self) -> Option<&IntegrityHash>

Accessor for checksum

pub fn seal<T: Serialize>(&mut self, object: &T) -> Result<(), Error>

Seal the header by calculating and setting the checksum of the provided object. The checksum field is temporarily cleared to keep sealing idempotent. Also updates updated_at to the current time, since sealing represents a semantic modification of the object.

This is typically called just before storing the object to ensure checksum matches content.

Trait Implementations

impl Clone for Header

fn clone(&self) -> Header

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Header

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Header

Custom Deserialize for Header so that a missing updated_at falls back to created_at instead of Utc::now(). This avoids nondeterministic metadata when loading legacy objects that predate the updated_at field.

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Header

fn eq(&self, other: &Header) -> 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 Serialize for Header

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for Header

impl StructuralPartialEq for Header