Caché | InterSystems Developer Community

Article

Mark Bolinsky · Feb 2, 2016

1m read

Some third party backup products may by default restore CACHE.DAT files as UNIX sparse files when there are trailing zeroes in the backup file.

The support for sparse files vary from UNIX distribution and file system types. Sparse files attempt to use file system space more efficiently when blocks allocated to the file are mostly empty similar to thin-provisioned storage. The file system transparently converts metadata representing empty blocks into "real" blocks filled with zero bytes at runtime. The application is suppose to be unaware of this conversion.

#System Administration #Caché

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Question

Jack Abdo · Feb 2, 2016

IFind french and stemming

Hi,

I created with Studio a persistent class with the following field and index:

#Beginner #Development Environment #Studio #Unstructured Data #iFind #Caché

Last reply Feb 2, 2016

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Article

Steve Brunner · Jan 28, 2016

1m read

Thanks to the many of you that have already begun to explore 2016.2

As of this morning, 38 companies had already grabbed a copy of Ensemble or Caché (Caché is more popular by about 3:1 ratio) to explore the new features of 2016.2.

Thanks - we look forward to hearing your feedback.

#Caché #Field Tests

Last reply Feb 2, 2016

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Announcement

Bill McCormick · Feb 1, 2016

Caché 2016.2 Field Test Preview & WebEx Invitation

Attached to this post is a PDF document outlining some of the key enhancements included with 2016.2. I will be giving a WebEx session that is open to all tomorrow at 11 AM EST. Once the WebEx is over I will be adding a link to the recording for those who cannot attend.

2016.2 Field Test Launch
Tuesday, February 2, 2016
11:00 am | Eastern Standard Time (New York, GMT-05:00) | 30 mins

Meeting number: 747 673 229

#Caché #SQL #System Administration #Field Tests

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Article

Alexander Koblov · Jan 29, 2016

9m read

Creating a Custom Index Type in Caché

The object and relational data models of the Caché database support three types of indexes, which are standard, bitmap, and bitslice. In addition to these three native types, developers can declare their own custom types of indexes and use them in any classes since version 2013.1. For example, iFind text indexes use that mechanism.

#Best Practices #Databases #Indexing #Object Data Model #SQL #Caché

Last reply Jan 29, 2016

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Question

Benjamin De Boe · Jan 28, 2016

Can we map CSP pages from another namespace?

Is there a possibility to map a CSP page residing in namespace ABC to a namespace XYZ so you could access it as if executing from XYZ: http://localhost:57772/csp/xyz/MyPage.csp ? Some odd cocktail of web application and package mappings that could make this happen?

The idea is to keep the CSP page in sort of a read-only namespace that only contains code, with the data residing in another namespace. This works for zen pages, but not for CSP.

#Mapping #Frontend #CSP #Caché

Last reply Jan 29, 2016

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Article

Stefan Wittmann · Jan 29, 2016

1m read

The Java browser plugin will be deprecated in JDK 9

Oracle plans to deprecate the much-maligned Java browser plugin in JDK 9. For years, the bundled plugin put users at risk with its numerous security flaws. The web is clearly moving to a plugin-free state, which is a good direction.

If you are relying on the Java browser plugin, you should take a look at Java Web Start.

Here is the official blog post by Oracle:

https://blogs.oracle.com/java-platform-group/entry/moving_to_a_plugin_free

Stefan

#Frontend #Caché

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InterSystems Official

Andreas Dieckow · Jan 27, 2016

Support for AIX 7.2 for Power System-64

InterSystems will support this Operating System version with Caché and Ensemble 2016.1.

#Caché #Ensemble #InterSystems Official

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Announcement

John Murray · Jan 21, 2016

Free edition of native source code management tool now available

Announcing Deltanji 6.0, the latest version of the well-respected George James Software source control product formerly known as VC/m.

Deltanji comes in four editions, including Solo which is quick to install on Caché or Ensemble (2009.1 or later), easy to get started with, and perpetually free.

Deltanji runs within the environment whose code it is managing, integrating closely with Studio and Portal, and storing code versions in a CACHE.DAT database.

#Development Environment #Studio #Tools #Caché #Ensemble

Last reply Jan 22, 2016

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Question

Scott Beeson · Jan 21, 2016

[QUESTION] Will I still be able to use these methods from business rules without the [ Final ]?

I'm working on some custom utility functions that I can utilize in Business Rules as well as other places. I saw this line in the docs:

For each function you wish to define, add a class method to your new function set class. There is no support for polymorphism, so to be precise, you must mark these class methods as final.

#Ensemble #Business Rules #Caché

Last reply Jan 21, 2016

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Question

Steve Shaw · Jan 21, 2016

Can Zen Report <pageheader> include information from a <body> group?

Hi,

I'm trying to create a Zen Report that, when rendered to PDF has a header on every page that includes some items from the group that I'm iterating over in the <body>. I can't use <header> as that only displays once for each iteration, even if that spans more than one page, but <pageheader> seems to be independent of <body> so again doesn't work.

Cheers,

Steve.

#Beginner #Frontend #ZEN #Caché

Last reply Jan 21, 2016

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Question

Chris Stewart · Jan 20, 2016

Nested Tabs on ZEN component

Hi

I'm starting to play around with dynamically creating tabs and panes from query data, and was trying to do the following, with nested tabs.

Tab Group

High level tabs

Sub Tab Group

Sub tabs from the High level tabs.

#Frontend #ZEN #Caché

Last reply Jan 20, 2016

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Question

Pravin Barton · Jan 20, 2016

Use an array as a SQL parameter for a Zen tablepane?

I'd like to have an array as a parameter for a SQL 'WHERE... IN' statement. The array would be modified in javascript on the browser. Here's a simplified example:

#SQL #Frontend #ZEN #Caché

Last reply Jan 20, 2016

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Question

Fabio Goncalves · Jan 14, 2016

Override JQuery Mobile Theme

Is it possible to override JQuery Mobile elements´styles (buttons, lists, font size, color, etc) or an existing theme with a separate custom css file?

I am really interested in an official or elegant way to do it.

Thanks.

#Frontend #ZEN #Caché

Last reply Jan 18, 2016

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Question

Scott Beeson · Jan 13, 2016

Best way to retrieve specific record?

New to CSP and Zen. I've been going through tutorials and have made some progress. Using the "Contacts" tutorial as an example, I'm trying to create a "ViewContact" page. I want this to be linkable so I'm using URI Parameters, which I understand. However, what I'm not sure about is how to retrieve a specific record. Should I use a SQL statement? If so, how?

#SQL #Tutorial #Frontend #CSP #ZEN #Caché

Last reply Jan 14, 2016

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Question

Scott Beeson · Jan 13, 2016

How to create content for child pages of a template?

I created a Zen page with a header. All is good. I then created a new Zen page and during the wizard specified that it was a "subclass of a template page". So now I have Class Custom.App.HomePage Extends Custom.App.TemplateMaster. If I visit HomePage.cls I see the header from the template. However, the HomePage class has no XData Contents section so I have no idea how to actually add content. I tried adding the section but once I do then I don't see the template content anymore.

#Frontend #ZEN #Caché

Last reply Jan 14, 2016

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Article

Simon Bijl · Jan 12, 2016

10m read

DecisionTree

Is there someone that has developped a program in order to create a 
"decisiontree"? Depending The answer to a question leads to another question, and so on, 
and so on, and there is an option to return to another point in the decisiontree.

Best regards,

Simon.

p.s. I've already got something, but it's not workable. But to get an idea:

#Data Model #Caché

Last reply Jan 14, 2016

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Article

Mark Bolinsky · Jan 7, 2016

1m read

Scalability and performance benchmark results from large scale systems

Often times support and sales engineers are asked about recent benchmark results on various platforms and large scale configurations. These will be made available here in the Developer Community in the "Documentation" section, and as an example here's a link to a recent Intel E7 v2 series processor benchmark.

https://community.intersystems.com/documentation/data-scalability-intersystems-caché-and-intel-processors-0

#InterSystems Business Solutions and Architectures #Performance #Caché

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Article

Stefan Wittmann · Jan 6, 2016

1m read

Internet Explorer 8, 9 and 10 die on Tuesday, January 12th.

You may have missed the news that support for older version of Internet Explorer ends next week Tuesday, January 12th. The original blog post from Microsoft can be found here:

https://www.microsoft.com/en-us/WindowsForBusiness/End-of-IE-support

A patch will go live next week Tuesday, that will nag users of older IE versions to upgrade to a recent version. The patch is identified as KB3123303. You can find more information about this patch here:

#Caché

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Article

Joel Solon · Dec 23, 2015

1m read

Caché ObjectScript Quick Reference

In the Caché Foundations course, students are learning about Caché Development and ObjectScript syntax at the same time. To help students complete the exercises, we provide an ObjectScript Quick Reference (aka "the Cheat Sheet").

It is not a reference for all of ObjectScript! It is a list of the ObjectScript commands and functions that students use during the course, along with common syntax for objects, collections, etc. It also contains some useful macros.

#Languages #Object Data Model #ObjectScript #Caché

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Question

Fabio Goncalves · Dec 17, 2015

Zen Mojo - JQuery Mobile Define Charset

I am trying to define the charset for a JQM Application and it is not working. I have tried the following options without success:

#Frontend #ZEN #Caché

Last reply Dec 18, 2015

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Question

Steven LeBlanc · Dec 17, 2015

API equivalent to 'Recreate a database' option in ^DATABASE routine?

Hi,

Is there any API equivalent (within Config.Databases class, or elsewhere) that has the same functionality as the 'Recreate a database' option in the ^DATABASE routine?

This option was added to ^DATABASE (according to internal Devlog CFL1263):

#Databases #System Administration #Caché

Last reply Dec 17, 2015

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Question

Derek Day · Dec 15, 2015

SELECTING distinct keys from a collection

Is there a way to select distinct keys from an field that has a collection index? I have a field defined as follows: Property data As %Library.String(COLLATION = "EXACT", MAXLEN = "", TRUNCATE = 0); Index data On data(KEYS) [ Type = bitmap ]; And I define a build value array method that parses my data outputs an array in the format array(KEYS)=VALUES. This is very useful because I can query my data using criteria such as WHERE FOR SOME %ELEMENT(data) (%KEY='param') My question is whether there is some way to select distinct key values, e.g.

#Caché

Last reply Dec 16, 2015

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Question

Fabio Goncalves · Dec 14, 2015

Zen Mojo - Disable button on JQM Plugin

Hi All,

I am trying to disable a button on a JQM application.

I started the button as disabled according to this code: {type:'$button',caption: Button',key:'button',disabled:true}

However, I would like to enable or disable the button via JavaScript code . I have tried the following, but it don´t have the same behavior and style as the code above.

#Frontend #ZEN #Caché

Last reply Dec 15, 2015

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Question

Derek Day · Dec 8, 2015

Auditing Attempted Transactions / No Duplicate Journaling

There seems to be little point to journal audit db updates; why rollback an audit entry for an attempted update?

I’m working on some auditing code and I have a few questions (feel free to respond regarding 2016.1 or later).

#Security #Caché

Last reply Dec 11, 2015

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Question

Chip Gore · Nov 11, 2015

Linux provider change question

Hi -

If you have Cache installed on a Cent OS machine, and you want to switch the OS to Red Hat 7, and your Caché is installed on a non-OS drive, do you need to reinstall Caché?

I don't think so, but I wanted to check

#Caché

Last reply Nov 11, 2015

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Article

Brendan Bannon · Nov 9, 2015

1m read

Cache SQL Storage Mapping

The attached zip file contains a bunch of examples of Cache SQL Storage mappings that I have done over the years.

If you have existing globals and want to expose them via Objects or SQL you need to setup Cache SQL Storage mapping. If you do not see an example that helps with your case send me an example and I can help you out.

#Code Snippet #System Administration #Caché

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Article

Daniel Kutac · Nov 9, 2015

3m read

Tipy a Triky s Caché

Tip dvacátý šestý: objekty a concurrency 2 - swizzling

Když tento seriál před několika lety začínal, byl jeho první díl věnován zajištění izolace instance objektů pro exkluzivní přístup a popisu příslušných API funkcí. Nedávno se mi ale stalo, že mě tento díl dostihl. Jeden ze zákazníků začal mít problémy v aplikaci, přestože důsledně používal exkluzivní zámky pro editování instancí svých objektů.

#Code Snippet #System Administration #Caché

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