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#Caché

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InterSystems Caché is a multi-model DBMS and application server. See more details here.

Documentation.

In last week's discussion we created a simple graph based on the data input from one file. Now, as we all know, sometimes we have multiple different datafiles to parse and correlate. So this week we are going to load additional perfmon data and learn how to plot that into the same graph.
Since we might want to use our generated graphs in reports or on a webpage, we'll also look into ways to export the generated graphs.

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I created a new class DSW.Addons.htmlViewer:

Class DSW.Addons.htmlViewer Extends %DeepSee.Component.Portlet.abstractPortlet
{

Property Data As %String;

ClassMethod %OnGetPortletSettings(Output pInfo As %List, ByRef pSettings) As %Status
{
    Kill pInfo
    Set pInfo(1) = $lb("Data", , , "Data", "Data setting")
    Quit $$$OK
}
}

It's a ZEN component and DeepSee portlet. It's immediately available in the namespace I created it in. DSW package is mapped to %ALL and to Samples, but if I try to create a widget with this portlet I get ZEN class not found error.

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Hi

I created a jdbc connection in the Caché 2010.2.3 with SQLServer 2008R2.

The connection to this DB works correctly. (Conection Sucess)

I try to perform table binding but this connection, even though it is successful, does not load my tables and schemas.

I did the same test on Caché 2015 , with same jar drivers files and works perfectly!

Any idea?

Caché 2010.2.3

Red Hat Enterprise Linux Server release 6.2 (Santiago)

java version "1.7.0_09"

Caché 2015

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I have the following query which tells me how many documents were retrieved for each customer, but it only works for the "on-demand" customers:

SELECT PatientFacility, LEFT(LocalDateTime,7) as Mnth, Count(*)
FROM HS_IHE_ATNA_Repository.Aggregation
WHERE EventType IN ('RecordRequest','RecordRequestBreakGlass')
AND LocalDateTime >= '2016-01-01'
AND LocalDateTime < '2017-01-01'
GROUP BY PatientFacility, LEFT(LocalDateTime,7)
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If I were trying to access an index of a global variable, what time complexity would this operation have? My understanding of languages like Java/C++ is that arrays are stored as blocks of memory so that x[15] would have a lookup time complexity of O(1) because it just goes to (address of the array + 15) and retrieves the value stored there.

How does this work in Cache where the index of a variable isn't necessarily an integer value? If I were to have a variable like the following:

x("Adam") = "Red"

x("George") = "Blue"

x("Bryan") = "Green"

etc...

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This is the second part of my long post about package managers in operating systems and language distributions. Now, hopefully, we have managed to convince you that convenient package manager and rich 3rd party code repository is one key factor in establishing of a vibrant and fast growing ecosystem. (Another possible reason for ecosystem success is the consistent language design, but it will be topic for another day.)
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Hi,

I have downloaded an evaluation copy of Cache and installed on a Windows 2016 R2 machine. I wanted to Configure different locations for DAT, WIJ, and Journal files but the installation process didn't give me such a "custom" option. I do see that the installation guide mentions the presence of such an option so I am wondering if this is a limitation of evaluation copies. Can someone please confirm?

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Back in my COBOL days, there was a utility that would analyze running COBOL code and expose bottle necks and those modules that were inefficient or were executed multiple times. This was to help the programmer know where to concentrate streamlining efforts.

Is there any such utility for Caché Routines?

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I am in the planning stages of making things more uniform in our routines and I would like to know what the easiest way would be to include an .inc at the beginning of each .mac routine. Has anyone written something that would open all routines and place something into the first row while leaving the rest of the routine unchanged? Thanks for any guidance you all may provide.

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Points to remember before you start:

  1. It is not possible in a COS (Caché Object Script) job/process context to have multiple Named Pipes. It is a one Named Pipe per job/process limited line of communication.
  1. Named Pipes, in Caché, like most pipes on most operating systems are Unidirectional. That means you open them for either Read or Write, but not both.
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Well I want to set the type of a piece in a global as a String, because when I use float numbers , the system parse them to numbers instead of use like strings and thats a little bit tricky with the sorts

Here is a code example:

ACB>s ^a("1.0012")=""// that is going to be stored as a number

ACB>s ^a("1.0011")="" // that is going to be stored as a number

ACB>s ^a("1.0010")="" // that is going to be stored as string

ACB>zw ^a

^a(1.0011)=""

^a(1.0012)=""

^a("1.0010")=""

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The class %Compiler.UDL.TextServices arrived in 2015.1, bringing us methods for exporting a class in UDL format (i.e. looking just like we're used to seeing it in Studio), and importing a UDL format definition back into a namespace. Some source control tools including our Deltanji are now able to use UDL format, resulting in diffs that are easier to understand.

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Per the information at http://docs.intersystems.com/latest/csp/docbook/DocBook.UI.Page.cls?KEY=... I am trying to use a call to $ZF("GETFILE") to obtain information about an OpenVMS file. But I get an <ILLEGAL VALUE> error.

For example:

w $zf("GETFILE",filename,"UIC")

reports:

<ILLEGAL VALUE>

My filename variable contains the full path and name of a file that I own. I hold the %All role in Cache.

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Hi-

Im curious if there is any specific configuration that has to be done on an IIS web server to serve up RESTful web services.

I have a server that has IIS installed, with the CSP gateway. a second server that has Cache installed on it.

I have configured a web application using the Cache System Management Portal for the web services that has a dispatch class pointing to my dispatch class.

I have created an application mapping in my CSP Gateway Management Portal on the web server such that url's with /webservices prefix are routed to my cache server.

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Hi,

Initially when setting up a cache instance one creates or imports the user/ resources roles etc .

After the Mirror has been activated you can add users, resources etc. But when trying to add new SQL Table privileges to a namespace where the databases are mirrored it seems that you are not able to , Getting error:

ERROR #5002: Cache error: <DIRECTORY>SQLUserPrivsExecute+13^%SYS.SQLSEC

SOURCE ELEMENT: %CSP.UI.Component.SQLTables (SQLTables)


How do you maintain these privileges?

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I'm having trouble creating a view in cache with query like:

SELECT column1, column2, column 3
FROM table
WHERE
(column1, columnn 2) IN (SELECT c1, c2 FROM table2 GROUP BY c1)
ORDER BY column1

I think the problem is in where clause, because it cannot take two columns .

the exact error: [SQLCODE: <-1>:<Invalid SQL statement>] [%msg: < ) expected, , found^ (column1,>]

Any idea on how to solve this?

Thank you.

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Hi all!

I'm developing a mini-framework to implement annotations in Cache. I want to support two kind of annotations: metadata and method decorators. I've got stuck trying to implement the second one.

Metadata

With metadata annotations I can add metadata to any kind of target. A target can be a method/classmethod, parameter, property and class.

For example:

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Imagine that your .NET project uses the Caché DBMS and you need a fully-functional and reliable authorization system. Writing such a system from scratch would not make much sense, and you will clearly want to use something that already exists in .NET, e.g. ASP.NET Identity. By default, however, this framework supports only its native DBMS – MS SQL. Our task was to create an adaptor that would let us quickly and easily port Identity to the InterSystems Caché DBMS. This work resulted in creation of the ASP.NET Identity Caché Provider.

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Hello,
I have a list of files on disk.
Each record is the fully qualified UNC path and filename.
I would like to send these files to the end users default printer as a document.
I have attempted to build a html page using document.write statements and print using printWindow.print(); command.

I think there must be a better way to send a series of files to the windows print spooler.
I would welcome any and all input.

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Hello, I've checked past posts and don't see the answer. Hope someone can help.

I'm working with our commercial version of VistA. Cache 2016.2.

I've connected to the instance and copied a few M routines to my local Atelier project. I edited a comment in the file and attempted to save/compile the routine back to the server.

I'm getting

Synchronization failed: Invalid header in /Encounter Interface/VFD.......

Is there something I'm missing? Thanks in advance.

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