Using Node.js with Caché - InterSystems Documentation

Table of Contents
About This Book .................................................................................................................................... 1
1 Introduction ........................................................................................................................................ 3
2 Installation ........................................................................................................................................... 5
2.1 UNIX .......................................................................................................................................... 5
2.2 Windows ..................................................................................................................................... 6
3 Accessing Caché from Node.js ........................................................................................................... 7
3.1 JSON Objects and Caché Globals .............................................................................................. 7
3.2 Synchronous vs. Asynchronous cache.node Methods ................................................................ 8
3.3 Overview of cache.node Methods .............................................................................................. 9
3.4 Opening and Closing the Caché Database ............................................................................... 10
3.5 Advanced Data Access with retrieve() and update() ................................................................ 11
3.5.1 Using retrieve() .............................................................................................................. 11
3.5.2 Using update() ................................................................................................................ 15
3.6 Towards an Object Oriented Development Methodology ........................................................ 16
4 Reference for cache.node Methods ................................................................................................. 17
4.1 Example Data ........................................................................................................................... 18
4.2 close() ....................................................................................................................................... 18
4.3 data() ......................................................................................................................................... 18
4.4 function() .................................................................................................................................. 19
4.5 get() .......................................................................................................................................... 20
4.6 global_directory() ..................................................................................................................... 21
4.7 increment() ............................................................................................................................... 22
4.8 kill() .......................................................................................................................................... 22
4.9 lock() ........................................................................................................................................ 23
4.10 merge() ................................................................................................................................... 23
4.11 next() or order() ...................................................................................................................... 24
4.12 next_node() ............................................................................................................................. 25
4.13 open() ..................................................................................................................................... 27
4.14 previous() ................................................................................................................................ 27
4.15 previous_node() ...................................................................................................................... 28
4.16 retrieve() ................................................................................................................................. 30
4.17 set() ......................................................................................................................................... 32
4.18 unlock() .................................................................................................................................. 32
4.19 update() ................................................................................................................................... 33
4.20 version() and about() .............................................................................................................. 34
Appendix A: Building cache.node from Source ................................................................................ 37
A.1 Using the Node.js Build Procedure ......................................................................................... 37
A.1.1 Creating the Build Script (wscript) ............................................................................... 37
A.1.2 Build the cache.node Module ........................................................................................ 38
A.2 Building Directly from Source ................................................................................................ 38
Using Node.js with Caché
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