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svrjs-blog-newsletter/backend/node_modules/mongodb/lib/write_concern.js
2024-05-26 22:54:55 +02:00

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2.6 KiB
JavaScript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.WriteConcern = exports.WRITE_CONCERN_KEYS = void 0;
exports.WRITE_CONCERN_KEYS = ['w', 'wtimeout', 'j', 'journal', 'fsync'];
/**
* A MongoDB WriteConcern, which describes the level of acknowledgement
* requested from MongoDB for write operations.
* @public
*
* @see https://docs.mongodb.com/manual/reference/write-concern/
*/
class WriteConcern {
/**
* Constructs a WriteConcern from the write concern properties.
* @param w - request acknowledgment that the write operation has propagated to a specified number of mongod instances or to mongod instances with specified tags.
* @param wtimeout - specify a time limit to prevent write operations from blocking indefinitely
* @param j - request acknowledgment that the write operation has been written to the on-disk journal
* @param fsync - equivalent to the j option
*/
constructor(w, wtimeout, j, fsync) {
if (w != null) {
if (!Number.isNaN(Number(w))) {
this.w = Number(w);
}
else {
this.w = w;
}
}
if (wtimeout != null) {
this.wtimeout = wtimeout;
}
if (j != null) {
this.j = j;
}
if (fsync != null) {
this.fsync = fsync;
}
}
/** Construct a WriteConcern given an options object. */
static fromOptions(options, inherit) {
if (options == null)
return undefined;
inherit = inherit !== null && inherit !== void 0 ? inherit : {};
let opts;
if (typeof options === 'string' || typeof options === 'number') {
opts = { w: options };
}
else if (options instanceof WriteConcern) {
opts = options;
}
else {
opts = options.writeConcern;
}
const parentOpts = inherit instanceof WriteConcern ? inherit : inherit.writeConcern;
const { w = undefined, wtimeout = undefined, j = undefined, fsync = undefined, journal = undefined, wtimeoutMS = undefined } = {
...parentOpts,
...opts
};
if (w != null ||
wtimeout != null ||
wtimeoutMS != null ||
j != null ||
journal != null ||
fsync != null) {
return new WriteConcern(w, wtimeout !== null && wtimeout !== void 0 ? wtimeout : wtimeoutMS, j !== null && j !== void 0 ? j : journal, fsync);
}
return undefined;
}
}
exports.WriteConcern = WriteConcern;
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