New post

#ObjectScript

16

InterSystems ObjectScript is a scripting language to operate with data using any data model of InterSystems Data Platform (Objects, Relational, Key-Value, Document, Globals) and to develop business logic for serverside applications on InterSystems Data Platform.

Documentation.

Can anyone suggest suitable Cache ObjectScript syntax for open/use/read statements on a simple ms-dos text file.
I've tried various examples seen on the web but they appear to be implementation specific.
I used MSM MUMPS many years ago but am now retired & would like to write a few simple routines for my own amusement & mental challenge.
I am using the free Version of Cache (V 2017.1) on my Windows 10 PC. The installation file was CachePCkit_x64.exe
My apologies for this query being very basic.

0 4
0 1K

We don't often use SQL within our org, which is mostly due to the performance issue we experience due to the quantity of data we are reviewing.

Aside from the standard performance measures for non-Caché databases, are there any recommended approaches when querying large tables?

The table would have roughly 50M records, but there are not a finite amount of sub-nodes.

0 7
0 1K

Hi ,

Still a newbie for ensemble, I am trying to convert XML message to HL7 Message. I am using Custom schema for XML structure which includes MSH and PID segments from HL7 Message.

These are the service, process, Operation classes i am using

Business service-EnsLib.EDI.XML.Service.FileService

Business Process-EnsLib.MsgRouter.RoutingEngine

Business operation -EnsLib.HL7.Operation.FileOperation

0 8
0 1K

I have a custom process that is parsing HL7 and inserting it into a table. Periodically the inserts fail with # due to error: ERROR #5803: Failed to acquire exclusive lock on instance of....

Traditional databases would wait until the lock is removed then do the insert, but cache fails. I'm sure it's my coding approach.

How can I work around this? A Try/Catch loop?

Thanks in advance.

0 7
0 1K

Currently, we are utilizing batch jobs at the OS level to kick off routines that watch for files. We are trying to convert these processes to be performed by the Task Manager.

The routines have while loops and perform while loops so long as the time parameters are being met.

What's the best way to ensure Task Manager kicks them off after the completion of the shutdown/backup/start process is performed, which we do nightly? I want to ensure that it starts it regardless of the time that we've set.

0 13
0 1K
Question
· Jun 1, 2021
Storing a %DynamicObject

I've been tasked with an interface that needs to supply some additional metadata for the indexing of HL7v2 messages. After toying with a couple of ideas, I thought that it would be useful to subclass EnsLib.HL7.Message, add a %DynamicObject property, and store the metadata in it (it ends up getting sent to the target in JSON form anyway).

And, well, it seems to work just fine ... so far.

0 4
0 1K
Question
· Feb 11, 2020
<PROPERTY DOES NOT EXIST>

Hi,

I am using IRIS for Windows (x86-64) 2019.1.1

I have.

1. Created a BS with SQL Inbound Adapter which successfully connects and gets rows from DB .


2. Created a request message is populated with results of SQL query.

3 Created a BP with HL7 Router + Routing Rule + Transformation + Send to Target (BO).

4 . Created BO sending HL7 to file.

i am getting the following error.

0 8
0 1K

Hello,

I am a beginner with Object Script and I hope anyone can help me solving my questions.

1. Is there a way to time a loop in Object Script?

2. My code leads to the following error, even though it executes the method.

Is there a way to ignore this specific error, so that I can repeat my code in a time loop over and over again without stopping?

1 3
1 992

OAuth server to be deployed on the IRIS learning cloud platform. Clients - one on the other instance of the learning IRIS server, the other client locally on my computer in the container docker.

Both clients get a seemingly correct link (through ##class(%SYS.OAuth2.Authorization).GetAuthorizationCodeEndpoint()) to the login request form:

1 3
1 974
Question
· Nov 22, 2016
Cache Syntax - Directory Exists

I am trying to write some code to check to see if a directory exists before creating a new directory.

When I do the following I am not getting a response, but the directory exists..

do ##class(%File).DirectoryExists("/ensemble/")

am I missing something?

0 5
0 970

Hello,

I assume there is a simple explanation for this, but I do get <OBJECT DISPATCH> error, when I am trying to set a global to a value.

My example is huge, but I reproduced it using Samples namespace:

First I delete the Title from ##class(Cinema.Film) - 3

Secondly:

SAMPLES>s ref=##class(Cinema.Film).%OpenId(3)
SAMPLES>w ref.Title

SAMPLES>set ^AK(1)=$G(ref.Title)

SET ^AK(1)=$G(ref.Title)
^
<OBJECT DISPATCH> *Property 'Title' in class 'Cinema.Film' must be MultiDimensional

0 4
0 967

Hi

Totally new to IRIS and Cache.

Trying to evaluate it and work out how we could use it.

As a standard application database. Object or relational etc. does not matter.

Issue is ObjectScript.

So:

1) Can we develop, maintain and use an IRIS database and never use ObjectScript i.e. use only Java, Python, C++ interfaces etc. (exactly which one does not matter)? Would that make designing and using the IRIS database more prone to inefficiency and error?

2 4
0 959

Hi,

I have a method that has multiple parameters and is normally used from other classes in ObjectScript. Most of the parameters have default values. Withing the server code that's perfect. In some areas I can call myMethod(,,"sometext") or myMethod(tVariab) and thats fine... I use it as it's required in each place.

But now I want to expose it as a REST service so I need to buld a kind of wrapper., another method in a REST dispatcher class that will receive the parameters in a JSON object and will call the server method already implemented. Something like:

0 3
0 953