collection.js•790 B
'use strict';
/**
* methods a collection must implement
*/
const methods = [
'find',
'findOne',
'updateMany',
'updateOne',
'replaceOne',
'count',
'distinct',
'findOneAndDelete',
'findOneAndUpdate',
'aggregate',
'findCursor',
'deleteOne',
'deleteMany'
];
/**
* Collection base class from which implementations inherit
*/
function Collection() {}
for (let i = 0, len = methods.length; i < len; ++i) {
const method = methods[i];
Collection.prototype[method] = notImplemented(method);
}
module.exports = exports = Collection;
Collection.methods = methods;
/**
* creates a function which throws an implementation error
*/
function notImplemented(method) {
return function() {
throw new Error('collection.' + method + ' not implemented');
};
}