#Caché

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

Documentation.

Question vp123 · Feb 21, 2017

Hi!

I'm trying to implement %OnAfterDelete ClassMethod for persistent class. As a parameter it gets oid As %ObjectIdentity for the deleted object.

ClassMethod %OnAfterDelete(oid As %ObjectIdentity) As %Status

My question is: how to get ID value from %ObjectIdentity ?

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InterSystems Official Steve Brunner · Feb 21, 2017

I am pleased to announce that Caché and Ensemble 2017.1 Release Candidate versions are now available for all platforms.

We appreciate the many customers who have downloaded, tried it, and given us feedback over the past few months.

Some things not in the original field test that you may want to check out include:

  • Ubuntu is now a full production platform.
  • OpenID Connect now supports JWKS with OpenID Connect Discovery and OpenID Connect Dynamic Client Registration.
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Question Raghuram Devarakonda · Feb 15, 2017

Hi,

I am trying the following command in order to freeze the instance before backup is done:

    csession CACHE -U%SYS "##Class(Backup.General).ExternalFreeze()"

The command requires user name and password to be supplied when prompted. Is there any way that this command can be run where it doesn't query the credentials? I am wondering if it can use OS level permissions (root or effective user who owns Cache processes etc) .

My test is on a CentOS 6 machine if that helps. 

Thanks,

Raghu

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Question Rich Taylor · Jan 30, 2017

Hopefully this is a simple questions to respond to.  Can you do Delegated Authentication for SOAP web service calls.  I ask as I am not seeing this work as expected.  I have this authentication turned on and enabled in for he CSP Web Application yet I keep getting a "Security Token could not be Authenticated.  And a global I was setting to capture some of the available data is not being loaded.

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Question Scott Beeson · Feb 7, 2017

I use the HS_IHE_ATNA_Repository.Aggregation table a lot.  Someone just referred me to the HS_IHE_ATNA_Repository.Document table, which has an AggregationId column.  

I assume that column references the ID column in the .Aggregation table.  If so, does this mean that if the same document was requested 1,000 times that there will be 1,000 entries for it in the .Document table?  This seems inefficient to me.  Why not have one record in the document table and have a DocumentId column in the Aggregation table?

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Question Laura Cavanaugh · Feb 15, 2017

I have a property, Emails, that needs to contain a list of comma-delimited values, or "". Is there a benefit to making this property a list of %String, a Collection[list] (or however you do it), an array, or anything other than a simple %String type?

I just  need to store some values, and return these values in SQL -- so it needs to be SQL compatible.  I don't need to index the values or use individual values in the SQL statement (e.g. Select * from table where emails [ "email@co.com"  -- I don't need to do this, although maybe this would work anyway if it's of type %String).

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Article John Murray · Feb 14, 2017 1m read

Amongst the large fonts and chunky icons of Portal's pages, the Menu button in the top left corner is easily overlooked:

When clicked, it often produces the following menu:

When I remember it's there, I find the "View Console Log" option particularly handy.

I wrote "often" above because I've also noticed that the Menu contents change when I'm on a page within the Ensemble section of Portal:

Maybe the contents are context-sensitive elsewhere too and I just haven't noticed yet.

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Edit
Question prabakaran a · Feb 14, 2017

Hi All,

          while i configure the shadowing.i got following error.         

ERROR #1043: Shadowing is unavailable for current license

Thanks,

Prabakaran A. 

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Article John Murray · Feb 14, 2017 1m read

Until recently I didn't pay much attention to Portal's home page:

If it's not showing when you initially launch Portal you can easily jump to it using the button / tab at the top of the left-hand column of options. And later during your session, get there via the Home link that will be visible at the top of every page.

On the Home page the "Recent" section is automatically maintained for you.

To use the "Favorites" section you need to tag your favorite pages. Suppose I want to add the production monitor page as a favorite. Here's how:

1. Navigate the menu to find the link for the page you want.

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Question Seth Jaffe · Feb 13, 2017

  The following code in .Net using  CacheObject.dll  version 2016.1.2.206 com library

                  ConnectionString  =  "cn_iptcp:10.56.135.160[1972]:PHDEMO:PHSYSADM:***********" 

                  b = factory.Connect(ConnectionString  )
                  objCacheObject =  factory.Static("CacheObjectConnection")     
                  clist  = factory.GetConnectionList()

  for the above code, b is true and clist is  Local,cn_iptcp:127.0.0.1[1972]: 

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Question George James · Feb 11, 2017

IO devices can be assigned to a mnemonic space using, for example:

u device::"^%X364"

Is there a method that will return the assigned mnemonic space for the current device?

I can infer it by attempting to write to the device using a non existent write /mnemonic and then inspecting the error returned, but this is rather messy and could potentially affect the status of the device.  For example:

USER>u 0::"^BAR"
USER>w /foo
<NOLINE>^BAR
USER 2d0>

Is there a method or system variable that will give me this information in a cleaner manner?

Thanks

George
www.georgejames.com

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Question Eduard Lebedyuk · Feb 10, 2017

I have a web application with html, css, js files (no ZEN/CSP).

Problem: after I update them on a server, Caché still servers old and cached version (browser Cache is disabled).

There is a manual cache purge in Gateway Settings, of course, but is there an automatic solution?

I'll be okay with disabling cache server-wide, but an application-wide solution would be better.

I don't want to host web app on a separate web server.

Here's my web app config:

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Question George James · Feb 10, 2017

For reasons that I won't go into here, I need to run Cache Terminal in Linux using Wine.

It starts up ok, but when I try to establish a connection to a remote server I get the following error:

Ctermsecure Read Error
Could not obtain terminal server client name.
Reason: (10035, 0x2733) unknown error

If I launch CTerm.exe from a command line then I get the following:

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Article Fabian Haupt · Feb 10, 2017 6m read

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.

Loading windows perfmon data

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Question Eduard Lebedyuk · Feb 9, 2017

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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Question Qualix Tecnologia · Feb 3, 2017

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

Red Hat Enterprise Linux Server release 6.2 (Santiago)

java version "1.7.0_09"

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Question Scott Beeson · Feb 6, 2017

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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Question Alexander Brown · Feb 6, 2017

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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Article Timur Safin · Feb 2, 2017 19m read
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.)

In this second part we plan to discuss the practical aspects of creating a package manager in general and their projection to the Caché database environment.

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Question prabakaran a · Feb 3, 2017

Hi ,

     i installed and configure the cache odbc ODBC-2016.1.1.107.0-lnxrhx64.tar in centos7.

     it connected  while executing  in terminal .(i.e isql -v DSN) 

     odbc_connect work in executing  php shell script  in terimal.

     but odbc_connect not working in PHP web applcation.

Thanks,

Prabakran A.

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Question Raghuram Devarakonda · Feb 2, 2017

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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