Struct HandoverView 

pub struct HandoverView {
    pub id: String,
    pub stream: StreamId,
    pub runtime: String,
    pub published_lamport: u64,
    pub handover: HandoverBody,
    pub consumed_by: Vec<String>,
}

A handover anywhere in the mesh, with everyone who has taken it. The id is the digest of the body, so the same handover published twice — by a retry, or by two runtimes that both saw it — is one handover here; and consumed_by is what keeps two workers from silently picking up the same continuity, since the list is folded from events every runtime holds.

use std::sync::Arc;
use majordomus_cli::mesh::identity::NodeIdentity;
use majordomus_cli::mesh::journal::{EventBody, HandoverBody, Journal, StreamLiveness};
use majordomus_cli::mesh::state::{fold, HandoverView};

let j = Journal::open(Arc::new(NodeIdentity::ephemeral().unwrap()), "0000000000000001",
    "repo".into(), None).unwrap();
let body = "# Objective\nship\n".to_string();
let handover = HandoverBody { id: HandoverBody::digest_of(&body), task: None, issue: None,
    milestone: None, branch: Some("feature/x".into()), head: None, created_at: None,
    name: None, body };
let id = handover.id.clone();
j.append_own(EventBody::HandoverPublished { handover }).unwrap();
j.append_own(EventBody::HandoverConsumed { handover: id.clone(), session: "s1".into() })
    .unwrap();

let state = fold(&j.events(), &|_| StreamLiveness::Own);
let view: &HandoverView = &state.handovers[0];
assert_eq!(view.id, id, "identified by what it says, not by who said it");
assert_eq!(view.consumed_by.len(), 1, "somebody has picked this one up");

Fields

id: String

The content digest.

stream: StreamId

The stream that first published it.

runtime: String

<node>-<runtime> of the publisher.

published_lamport: u64

The Lamport stamp of the first publication.

handover: HandoverBody

The record’s facts and body.

consumed_by: Vec<String>

Every session that consumed it, by key, in Lamport order.

Trait Implementations

impl Clone for HandoverView

fn clone(&self) -> HandoverView

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HandoverView

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for HandoverView

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for HandoverView

impl JsonSchema for HandoverView

fn schema_name() -> Cow<'static, str>

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn inline_schema() -> bool

Whether JSON Schemas generated for this type should be included directly in parent schemas, rather than being re-used where possible using the $ref keyword.

impl PartialEq for HandoverView

fn eq(&self, other: &HandoverView) -> 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 HandoverView

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 HandoverView