Express_Crud_Example/node_modules/mongodb/lib/operations/operation.js
2022-01-28 22:33:42 +01:00

69 lines
2.4 KiB
JavaScript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.defineAspects = exports.AbstractOperation = exports.Aspect = void 0;
const bson_1 = require("../bson");
const read_preference_1 = require("../read_preference");
exports.Aspect = {
READ_OPERATION: Symbol('READ_OPERATION'),
WRITE_OPERATION: Symbol('WRITE_OPERATION'),
RETRYABLE: Symbol('RETRYABLE'),
EXPLAINABLE: Symbol('EXPLAINABLE'),
SKIP_COLLATION: Symbol('SKIP_COLLATION'),
CURSOR_CREATING: Symbol('CURSOR_CREATING'),
CURSOR_ITERATING: Symbol('CURSOR_ITERATING')
};
/** @internal */
const kSession = Symbol('session');
/**
* This class acts as a parent class for any operation and is responsible for setting this.options,
* as well as setting and getting a session.
* Additionally, this class implements `hasAspect`, which determines whether an operation has
* a specific aspect.
* @internal
*/
class AbstractOperation {
constructor(options = {}) {
var _a;
this.readPreference = this.hasAspect(exports.Aspect.WRITE_OPERATION)
? read_preference_1.ReadPreference.primary
: (_a = read_preference_1.ReadPreference.fromOptions(options)) !== null && _a !== void 0 ? _a : read_preference_1.ReadPreference.primary;
// Pull the BSON serialize options from the already-resolved options
this.bsonOptions = (0, bson_1.resolveBSONOptions)(options);
if (options.session) {
this[kSession] = options.session;
}
this.options = options;
this.bypassPinningCheck = !!options.bypassPinningCheck;
this.trySecondaryWrite = false;
}
hasAspect(aspect) {
const ctor = this.constructor;
if (ctor.aspects == null) {
return false;
}
return ctor.aspects.has(aspect);
}
get session() {
return this[kSession];
}
get canRetryRead() {
return true;
}
get canRetryWrite() {
return true;
}
}
exports.AbstractOperation = AbstractOperation;
function defineAspects(operation, aspects) {
if (!Array.isArray(aspects) && !(aspects instanceof Set)) {
aspects = [aspects];
}
aspects = new Set(aspects);
Object.defineProperty(operation, 'aspects', {
value: aspects,
writable: false
});
return aspects;
}
exports.defineAspects = defineAspects;
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