Struct EventObjectLink 

pub struct EventObjectLink { /* private fields */ }

An event-to-object (E2O) link: which objects an event touched, and how.

The optional qualifier names the role of the object in the event (e.g. "item", "customer"). A dangling link — one pointing at an undeclared event or object — is a structural defect, refused as OcelRefusal::DanglingEventObjectLink.

Structure-only: it is a typed edge in the OCEL graph, not a mined relation.

Implementations

impl EventObjectLink

pub fn new(event_id: impl Into<String>, object_id: impl Into<String>) -> Self

Construct an unqualified E2O link.

use wasm4pm_compat::ocel::EventObjectLink;
let l = EventObjectLink::new("e1", "ord-1");
assert_eq!(l.event_id(), "e1");
assert_eq!(l.object_id(), "ord-1");

pub fn qualified(self, qualifier: impl Into<String>) -> Self

Attach a role qualifier. Builder-style.

use wasm4pm_compat::ocel::EventObjectLink;
let l = EventObjectLink::new("e1", "ord-1").qualified("places");
assert_eq!(l.qualifier(), Some("places"));

pub fn event_id(&self) -> &str

The referenced event id.

use wasm4pm_compat::ocel::EventObjectLink;
assert_eq!(EventObjectLink::new("e", "o").event_id(), "e");

pub fn object_id(&self) -> &str

The referenced object id.

use wasm4pm_compat::ocel::EventObjectLink;
assert_eq!(EventObjectLink::new("e", "o").object_id(), "o");

pub fn qualifier(&self) -> Option<&str>

The optional role qualifier.

use wasm4pm_compat::ocel::EventObjectLink;
assert_eq!(EventObjectLink::new("e", "o").qualifier(), None);

Trait Implementations

impl Clone for EventObjectLink

fn clone(&self) -> EventObjectLink

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EventObjectLink

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

Formats the value using the given formatter.

impl Eq for EventObjectLink

impl PartialEq for EventObjectLink

fn eq(&self, other: &EventObjectLink) -> 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 StructuralPartialEq for EventObjectLink