ConditionalEventDefinition.md

ConditionalEventDefinition

ConditionalEventDefinition behaviour.

• Checks condition when event is first executed
• Expects to be signalled to check condition again

import { Definition } from 'bpmn-elements';

import testHelpers from '../test/helpers/testHelpers.js';
import factory from '../test/helpers/factory.js';

const boundEventSource = factory.resource('conditional-bound-js-event.bpmn');

const context = await testHelpers.context(boundEventSource);
const definition = new Definition(context);

const waiting = definition.waitFor('wait', (_routingKey, api) => {
  return !!api.content.condition;
});

const condition1 = definition.waitFor('activity.condition');

definition.run();

console.log('condition type', (await waiting).content.condition);
console.log('first condition result', (await condition1).content.conditionResult);

const condition2 = definition.waitFor('activity.condition');
const completed = definition.waitFor('leave');

definition.signal({ id: 'cond' });

console.log('signal condition result', (await condition2).content.conditionResult);

await completed;

ConditionalEventDefinition events

activity.wait

Fired when condition is waiting for signal.

activity.condition

Fired when condition is checked.