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mywebsite/node_modules/mongodb-core/lib/topologies/session.js

93 lines
3.4 KiB
JavaScript

"use strict";
var inherits = require('util').inherits
, f = require('util').format
, EventEmitter = require('events').EventEmitter;
/**
* Creates a new Authentication Session
* @class
* @param {object} [options] Options for the session
* @param {{Server}|{ReplSet}|{Mongos}} topology The topology instance underpinning the session
*/
var Session = function(options, topology) {
this.options = options;
this.topology = topology;
// Add event listener
EventEmitter.call(this);
}
inherits(Session, EventEmitter);
/**
* Execute a command
* @method
* @param {string} ns The MongoDB fully qualified namespace (ex: db1.collection1)
* @param {object} cmd The command hash
* @param {object} [options.readPreference] Specify read preference if command supports it
* @param {object} [options.connection] Specify connection object to execute command against
* @param {opResultCallback} callback A callback function
*/
Session.prototype.command = function(ns, cmd, options, callback) {
this.topology.command(ns, cmd, options, callback);
}
/**
* Insert one or more documents
* @method
* @param {string} ns The MongoDB fully qualified namespace (ex: db1.collection1)
* @param {array} ops An array of documents to insert
* @param {boolean} [options.ordered=true] Execute in order or out of order
* @param {object} [options.writeConcern={}] Write concern for the operation
* @param {opResultCallback} callback A callback function
*/
Session.prototype.insert = function(ns, ops, options, callback) {
this.topology.insert(ns, ops, options, callback);
}
/**
* Perform one or more update operations
* @method
* @param {string} ns The MongoDB fully qualified namespace (ex: db1.collection1)
* @param {array} ops An array of updates
* @param {boolean} [options.ordered=true] Execute in order or out of order
* @param {object} [options.writeConcern={}] Write concern for the operation
* @param {opResultCallback} callback A callback function
*/
Session.prototype.update = function(ns, ops, options, callback) {
this.topology.update(ns, ops, options, callback);
}
/**
* Perform one or more remove operations
* @method
* @param {string} ns The MongoDB fully qualified namespace (ex: db1.collection1)
* @param {array} ops An array of removes
* @param {boolean} [options.ordered=true] Execute in order or out of order
* @param {object} [options.writeConcern={}] Write concern for the operation
* @param {opResultCallback} callback A callback function
*/
Session.prototype.remove = function(ns, ops, options, callback) {
this.topology.remove(ns, ops, options, callback);
}
/**
* Perform one or more remove operations
* @method
* @param {string} ns The MongoDB fully qualified namespace (ex: db1.collection1)
* @param {{object}|{Long}} cmd Can be either a command returning a cursor or a cursorId
* @param {object} [options.batchSize=0] Batchsize for the operation
* @param {array} [options.documents=[]] Initial documents list for cursor
* @param {boolean} [options.tailable=false] Tailable flag set
* @param {boolean} [options.oplogReply=false] oplogReply flag set
* @param {boolean} [options.awaitdata=false] awaitdata flag set
* @param {boolean} [options.exhaust=false] exhaust flag set
* @param {boolean} [options.partial=false] partial flag set
* @param {opResultCallback} callback A callback function
*/
Session.prototype.cursor = function(ns, cmd, options) {
return this.topology.cursor(ns, cmd, options);
}
module.exports = Session;