@node-ts/bus-workflow/dist/workflow/decorators/started-by.js

A workflow engine for orchestrating logic flows in distributed applications.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.StartedBy = exports.WorkflowStartedByMetadata = exports.WORKFLOW_STARTED_BY_METADATA_KEY = void 0;
const reflect_extensions_1 = require("../../utility/reflect-extensions");
exports.WORKFLOW_STARTED_BY_METADATA_KEY = Symbol.for('node-ts/bus/workflow-started-by-metadata');
class WorkflowStartedByMetadata {
    static addStep(metadata, target) {
        reflect_extensions_1.ReflectExtensions.defineMetadata(exports.WORKFLOW_STARTED_BY_METADATA_KEY, metadata, target.constructor);
    }
    static getSteps(target) {
        return Reflect.getMetadata(exports.WORKFLOW_STARTED_BY_METADATA_KEY, target) || [];
    }
}
exports.WorkflowStartedByMetadata = WorkflowStartedByMetadata;
/**
 * A handler that starts a new workflow whenever a message of the handled type is received. A workflow can be started
 * by one or more message types.
 * @param messageConstructor The type of message that starts a new workflow
 */
function StartedBy(messageConstructor) {
    return (target, propertyKey) => WorkflowStartedByMetadata.addStep({
        propertyKey,
        messageConstructor
    }, target);
}
exports.StartedBy = StartedBy;
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