Using Node.js with Caché - InterSystems Documentation

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Reference for cache.node Methods ); Result: { global: "Customer", subscripts: [1, "Address", 1], data: "London" } { global: "Customer", subscripts: [1, "Address", 2], data: "UK" } { global: "Customer", subscripts: [1, "DateOfRegistration"], data: "1 May 2010" } ], "array", function(error, result) { // callback code } Operation successful if no error reported. Example 2 (type = “object”): Create or update a record for a customer mydata.update( node: { global: "Customer", subscripts: [1] }, Object: { Name: "Chris Munt", DateOfRegistration: "1 May 2010", Address: {"1": "London", "2": "UK"} }, "object", function(error, result) { // callback code } ); Result: Operation successful if no error reported. If successful, the following set of global nodes will be created for this example: ^Customer(1, "Address", 1)="London" ^Customer(1, "Address", 2)="UK" ^Customer(1, "DateOfRegistration")="1 May 2010" ^Customer(1, "Name")="Chris Munt" 4.20 version() and about() The version() and about() methods return basic version information about the cache.node module in use and the associated Caché database (if open). Synchronous Asynchronous Parameters var result = mydata.version(); var result = mydata.about(); mydata.version(callback_function); mydata.about(callback_function); • callback_function — a function of the form function(error, result){} used to return results asynchronously (see “Synchronous vs. Asynchronous cache.node Methods”). 34 Using Node.js with Caché
version() and about() Example mydata.version( function(error, result) { // callback code } ); Result: If the Caché database is not open: Node.js Adaptor for Cache: Version: 1.0.17 (CM) If the Caché database is open: Node.js Adaptor for Cache: Version: 1.0.17 (CM); Caché Version: 2012 build 100 Using Node.js with Caché 35
Page 1 and 2: Using Node.js with Caché Version 2
Page 3: Table of Contents About This Book .
Page 7 and 8: 1 Introduction This document descri
Page 9 and 10: 2 Installation This section describ
Page 11 and 12: 3 Accessing Caché from Node.js The
Page 13 and 14: Overview of cache.node Methods { }
Page 15 and 16: Advanced Data Access with retrieve(
Page 21 and 22: 4 Reference for cache.node Methods
Page 23 and 24: function() • 1 — Node has data
Page 25 and 26: global_directory() Parameters • n
Page 27 and 28: lock() Parameters • node — the
Page 29 and 30: next_node() • callback_function
Page 31 and 32: open() 4.13 open() The open() metho
Page 33 and 34: previous_node() Asynchronous Parame
Page 35 and 36: etrieve() Example 2 (type = “list
Page 37: update() Example 1: Unlock one node
Page 42 and 43: Building cache.node from Source Cre

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