Global Variable Access in OWB.

Hi All,
OWB Client 9.0.2.56.0
OWB Repository 9.0.2.0.0
Is it possble to have variables whose values can be accessed and updated across mappings?
eg global variables which can be referred/modified in any mappings
Thanks in Advance.
Regards,
Vidyanand

To implement this, you could persist a value in a temporary table from a certain mapping and then read the value from another mapping that uses that value as an input parameter (if they run sequentially from a process flow, for example).
Regards:
Igor

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Global variable access behaving differently

Hi There,
I am kind of confused at the way the output of this sql;
select
proc1.get_id(dwg_no, rev_id),
proc1.get_adcn(1) from
table t1,
table2 t2
where
t1.pkey = t2.fkey;
PL/SQL (Proc1)
create package proc1
function get_id(
dwg_no varchar2(10),
rev_id varchar2(4)
function get_adcn(
a number
create package body proc1 ..
--declare/set the global variable
v_adcn_no varchar2(4) := null;
funciton get_id (dwgno, revid) as
v_rev_id varchar2(12) := null;
select 'AB', '55' into v_rev_id, v_adcn_no from dual;
return v_rev_id;
funciton get_adcn (a number) as
return v_adcn_no;
My expectation is th get_id function would be executed and the global variable v_adcn_no would be set to '55' so that this value would be returned when get_adcn fucntion is called.
But it doesn't happen so.(i validated this)
[at times i returns 55, at times it returns null]
Actually i simulated my problem with a simple example.
and I do not want to execute the same sql again when get_adcn function is called.
Any help is highly appreciated.
Regards,
Srini

Thx for your reply,
that does not meet my requirement, bcos there is no guarantee that get_rev_id function would be called first before get_adcn.
But my requirement is i want the rev_id function to be executed first, how would i ensure that.
regards,
Srini

How do I store VI References in global variables and access them later

From what I know, Labview automatically deletes VI references when they go out of use. Is there a way for me to override this so that I can access a set of preloaded references in a separate VI? Essentially I would like to open the VI's dynamically into the memory, store the references in global variables and access them at a later time. The VI's I'm referencing won't be known until runtime. I know its not the safest way to do it, but it would be the most productive on my end.
Thank you
Clay Upton

I'm not sure what you mean by "a later time", but a VI reference will remain valid as long as the VI is in memory. If you don't unload the VIs, the references will remain valid.
If you do need to unload the VIs, for whatever reason, I would suggest the following:
Create a functional global as your interface for obtaining the references.
Feed the paths to the VIs into the VI when initializing it (since you don't know which VIs in advance).
When calling the VI to obtain the references, have the VI check them first (using the Not a Number... primitive). If it sees that they're invalid, it can open a new reference and return that.
You should note that when a VI is removed from memory, the data space is used is released, so if those VIs are expected to hold data (using shift registers, etc.) this will be a problem.
The description I've given will only be usable in certain instances (and it has its intricacies), but you didn't really give any details about what you're actually trying to accomplish.
Try to take over the world!

How can I access global variables in a loaded Applescript?

How can I access global variables in a loaded script, in Xcode, ApplescriptObjC? Basically, I have a global variable defined in my parent script using "property", and I need to modify objects connected to those variables inside of a loaded script.
Example:
Parent script:
script AppDelegate
property myTextField : missing value
//linked to a text field object
tell myScript to myAwesomeHandler_()
end script
Loaded script:
on myAwesomeHandler_()
myTextField's setStringValue_("The new Xcode is so glitchy ugh")
//changes value of linked text field of parent script
end myAwesomeHandler_
The problem is, the variable is undefined in the Loaded script, and I need it to have the same value as the parent script, and I don't want to pass the variable through the Handler. Any ideas?

I think want you are looking to do will need to be done in two steps. Because myTextField needs to be a property for the ObjectiveC part of the code you cannot turn it into a global.
However if you make a temporary variable global assign the string to it in the handler then set myTextField off of it.
global myTextFieldGlobal
script AppDelegate
property myTextField : missing value
//linked to a text field object
tell myScript to myAwesomeHandler_()
myTextField's setStringValue_(myTextFieldGlobal)
end script
on myAwesomeHandler_()
set myTextFieldGlobal to "The new Xcode is so glitchy ugh"
//changes value of linked text field of parent script
end myAwesomeHandler_
I know you stated you did not want the handler to return a value but I have to ask why? Global's, imo, are not a good idea and really should be used as a last resort.
One other possibility is to pass a reference to the property to the handler. Not sure if that works in AS of if that would satisfy our requirement of not passing the variable through the handler
<edit>
Another though have you tried to define the property outside the script? That is
property myTextField : missing value
script AppDelegate
Not sure if that will work.
You might also want to have a look at Scope of Properties and Variables Declared in a Script Object

How can I run two different vi's in same project which are accessing same global variable with out effecting the speed of the execution of both the vi's

Hi
I have build an Labview project with FPGA target . I have configured an FPGA VI and an host Vi to acquire data and logged the data to a file and stored the latest data in a global variable simultanously. I have configured one more VI in the same project to access the global variable. I have build a dll to access both the VI as functions in LabWindows/CVI code. My task in CVI is to update configured GUI with latest data periodically and run the host VI continously for a long time and log the data to a file. GUI should update for every one second with latest data for this I am using the second VI in which I am accessing the global varibale in which the latest data has been stored in host VI.

Duplicate Post (go here)

Call function in LabView from a DLL, then access global variable from DLL

I have created a DLL in LabWindows with a function and a structure. I want to call the function from within LabView and then access the global structure. I am able to call the function from the DLL with a "Call Library Function Node" and can access the return value, but I cannot figure out how to access the global structure. The structure is declared in the DLL header file with __declspec(dllimport) struct parameters.
Is there any way of accessing this structure without using the Network Variable Library?
Solved!
Go to Solution.

dblok wrote:
When you say "access to" or "the address of" the global variable, do you mean to pass the variable as an argument to the function call in the DLL? If so, then I was not really sure how to pass a cluster from LabView by using the "Call Library Function Node".
Yes, that's exactly right. I would include a pair of helper functions in the DLL to read and write the global variable. Alternatively you might write separate helper functions for each field inside the global structure, depending on the number of fields and whether you want to do any validation on the values.
You can pass a cluster by reference to a function that expects a struct by setting the parameter to Adapt to Type, so long as the cluster does not contain any variable-length elements (strings or arrays). The cluster needs to match the struct exactly, and sometimes that involves adding extra padding bytes to make the alignment work. Variable-length elements in LabVIEW need to be converted to clusters containing the same number of elements as the struct definition (for example, if your struct contains char name[12], you would create a cluster of 8 U8 values, and you could use String to Array of Bytes followed by Array to Cluster to convert a LabVIEW string into that format). If the struct contains pointers it gets more complicated, and it may be easier to write functions in the DLL to access those specific elements individually.
If you can't get this working or need help, post your code and an explanation of the error or problem you're seeing.
EDIT: it is also possible to include a single function in the DLL that returns the address of the global variable, which LabVIEW can then use to access and modify the data, but that's more complicated and likely to lead to crashes if you don't get the memory addressing exactly right.

Access global variable in fpga from rt-target

Hi All,
I have a realtime PC with NI-FPGA 7852R.
Generally I used programmatic front panel communication to access variables from FPGA to rt-system since I need the data for control and not for data logging.
The thing is, I bumped into a tutorial and suggested me to use global variables to save resources of your FPGA. My question is, is it possible to access global variable that belongs to FPGA from rt-system? As far as I tried, this does not seem possible.
Thanks,
Auralius

Could you point us towards this tutorial?
Chris
Certified LabVIEW Architect
Certified TestStand Architect

Accessing Var from main Nib/Class - [global variables]

I'm sure this is a simple solution and the problem is I'm just not thinking right. I just started programming in Objective C but have come a long way in the past 2 weeks. Pretty extensive knowledge in C# and some java.
Anyways, I've been creating an app and have streams working, CFNetwork working, network services discovery working and a tab bar with a custom View controller linking to one of the tab-bar buttons.
So when you click on one of the tab bar items it opens a new nib file. That nib loads a table view. When nib loads it hits a method which starts looking for network services and updates the table when it finds some.
Now the idea is is to have a selector on the cell and when you choose the service it adds same variable info, ip and port, back to a global variable which can be used through the entire app and all extra loaded nib files.
Out of all this, I don't know how to access global variables....prob should be the simplest thing to do out of all I've done. I have ideas of how it should be done but don't know how to access it.
Idea would be:
MainWindowNib has NSString var that is public with a getter setter. But how can I access that MainWindowNib var from a SecondView.nib file/class. There a way to get the parent of the secondView.Nib? I have no clue.
Any help would be great!
Thanks!

I'm still a bit confused how you access that method.
Main.nib class : UIApplication
NSString *port
SetupView.nib : NSViewController
view
-TableView added to view
-Seperate NSObject for TableViewDelegates
-When item selcted, pass NSString to [main port]
How do I get a pointer to port. I don't really understand how to do this with objective C.
In C# I would be something like: [Not exact syntax but u get the idea]
public Main : Form
public string port{get;set;}
Main()
sView SeconddForm = new SecondForm(this);
public SecondForm : Form
SecondView(Main main)
main.Port = "8080";
Message was edited by: Clarke76
Message was edited by: Clarke76

ESB - Global Variables? access of the variables outside the transformation

I am working on one of the ESB services for my project(not looking for BPEL).
1. Database adapter polls the data table (Say X and Column C1, C2, C3....Cn,CountofRecordsof Other table Y)
2. Routing Service calls other database adapter for pulling the data from other table(Say Y) in another schema based on the C1,C2,C3 from X.
3. After getting the count(i only need the count of records based on the C1, C2 and C3 conditions from Y table), I have to update the table X which corresponds to the row C1.
The trouble what I have is
1. How do I update the records which is for the C1 as the return of the value (which is the count) from the second adapter gives only the record count but it doesn't store the identifier from the first table.
2.Is there anything called global variable concept in the ESB?
3.How to access the varilable which are outside the schema in the current transformation. i.e, consider I have two schemas, Schema A and Schema B,where I am mapping the variables in the transformation, and considering I need a variable which is the schema which was populated with values during runtime in Schema C.
Let me know if needs more clarification!
thanks,
Prashanth

Hi,
>>
1. Database adapter polls the data table (Say X and Column C1, C2, C3....Cn,CountofRecordsof Other table Y)
2. Routing Service calls other database adapter for pulling the data from other table(Say Y) in another schema based on the C1,C2,C3 from X.
3. After getting the count(i only need the count of records based on the C1, C2 and C3 conditions from Y table), I have to update the table X which corresponds to the row C1.
>>
I suppose your RS at step 2 gives C1, C2, C3 as input and you invoke DB adapter to get count and forward response to other service.
>>
The trouble what I have is
1. How do I update the records which is for the C1 as the return of the value (which is the count) from the second adapter gives only the record count but it doesn't store the identifier from the first table.
>>
If I understand your task correctly, try to use ESBREQUEST to accomplish your task.
>>
2.Is there anything called global variable concept in the ESB?
>>
No, there are no global variables in ESB, such in BPEL.
I think, this should be known when you first starting a design your ESB processes.
You can accomplish your task in next way:
add global variable to your XML payload.
For example, your XML payload looks like:
<payload><some content/></payload>
You can extend your XML schema to include global variable, so you payload may looks like:
<payload><some content/><global_var>value</global_var></payload> (I think this's the best way, if you really need something that can be accessed in many parts of your ESB process)
>>
3.How to access the varilable which are outside the schema in the current transformation. i.e, consider I have two schemas, Schema A and Schema B,where I am mapping the variables in the transformation, and considering I need a variable which is the schema which was populated with values during runtime in Schema C.
>>
Sorry, I didn't understand. What schema do you mean? XML schema or DB schema?

No access on global variables in sequence calls

Hello,
I have the following problem:
I don't have access on global variables (Fileglobals.xx) in subsequences.
I had access on the global variables until I add a big array to the global variables.
Is this the reason for that strange behavior?
thank you for your help
Samuel

Hello Ray,
1)
I had two string arrays with: array1[0....11][0...800], array2[0...6][0.....400]
until this everything was ok
then I increased the array1 to array1[0....11][0...1200]
from this point I had the problem
2)
No the subsequences are in the same sequence file
3)
I am using teststand 3.1
would it be better for this probelm to use teststand 3.5?
Thank You for your help
regards
Samuel

How to create and access Global variable in Microsoft Lightswitch(VB)?

How to create an integer datatype Global variable in Microsoft Lightswitch 2011(VB) and access it in pre-process query to set value? Can it be accessed and set like Me.Application.<MyGlobalVariable> = 999
Thnx.
jajjaar123

If you want to create integer datatype Global variable in lightswitch, you can refer to (Eric Erhardt) blog
Create and Use Global Values In a Query

Having a global variable which can be accessed by PCUI application?

Hi there,
Is it possible for us to have global variables that are available to use by the PCUI application during runtime??
Thanks,
Josh

In the standard code SAP creates singleton classes i.e. only one instance of this class is possible. When you ever you try to create same instance is returned.
<P>
Like this you can have all your global variables in this class and can be accessed from other MAC's.
<P
In the class you need to have method GET_INSTANCE as static method which will return the instance and have CONSTRUCTOR method. You need to make sure that same instance is returned. But i am not sure what will be the code insidde these methods.
Cheers, Raj

Accessing global variables in a BAdI

How can we access the global variables of a program from a BAdI ?The BAdI does not have that particular variable as a part of it's importing/exporting parameter.The BAdI gets triggered at a particular point in the program.The name of the BAdI is /SAPAPO/SDP_SELECTOR and the transaction is /SAPAPO/SDP94(Demand Planning: APO).
Thanks,
Savitha

Hi,
Try to export the variable to memory id or use database memory id.
Like this.
Export l_vbeln to memory id 'ZTEST'.
you can give any name instead of ZTEST.
or u can export to database memory id
EXPORT tab = lt_vbkd
TO DATABASE indx(V1)
FROM ls_indx ID 'ZTEST'.
Regards,
Niyaz

Can I Access the Value of a Global Variable in a Trigger

I'm using a Global variable in a Package which i use in the BIU Trigger to populate a column. After assigning the value for that global variable, I run an INSERT in the same package. But I find only the default value of the Global variable populated in the column. Can I use a Global Variable in a Trigger? Is there any way to put in a common value across all the tables in an application for all DMLs of a particular session?

Helios,
I'm already having the same setup mentioned in the thread. And I'm doing exactly whats given there. But the issue seems to be something different. I'm assigning the value to the Global Variable in the Package through Apex. Here's the Package Code:
CREATE OR REPLACE PACKAGE Schema1.SPMS_SECURITY_PKG
AS
X_app_user_id NUMBER DEFAULT -1;
FUNCTION USER_ID RETURN NUMBER;
END SPMS_SECURITY_PKG;
CREATE OR REPLACE PACKAGE BODY Schema1.spms_security_pkg
AS
FUNCTION user_id
RETURN NUMBER
IS
BEGIN
-- RAISE_APPLICATION_ERROR(-20001,'USER ID'||'*'||X_app_user_id);
RETURN NVL (x_app_user_id, -1);
-- RETURN NVL (sys_context('USERENV', 'CURRENT_USER'), -1);
EXCEPTION
WHEN OTHERS
THEN
RETURN -1;
END;
And Here is the Trigger Code:
CREATE OR REPLACE TRIGGER Schema1."USER_DETAILS_TRIGGER"
BEFORE INSERT OR UPDATE
ON PMS_SICAL.SPMS_USER_DETAILS REFERENCING NEW AS NEW OLD AS OLD
FOR EACH ROW
BEGIN
IF INSERTING
THEN
:NEW.created_by := spms_security_pkg.user_id;
:NEW.created_date := SYSDATE;
:NEW.START_DATE := SYSDATE;
ELSIF UPDATING
THEN
:NEW.updated_by := SPMS_SECURITY_PKG.X_app_user_id;--spms_security_pkg.user_id;
:NEW.updated_date := SYSDATE;
END IF;
END;
But I always get -1 in the both in the table after the DMLs.

Accessing Global variable which is in another script file

Hi,
I have 2 scripts as File1.scpt and File2.scpt in desktop. I am in need of having the common global variable 'GG'.
File1.scpt has only the following code
*global GG*
*Set GG to "I am global"*
File2.scpt has
+set file1 to (load script file "Macintosh HD:Users:mowri:Desktop:File1.scpt")+
+display dialog m+ -- not working -- Error message: "The variable m is not defined"
+display dialog m+ of file1 - not working -- Error message: "Can't make m into type string"
It will be great help if you can clarify about my mistakes in this?
Regards
Mowri

Another solution, shorter than the previous one:
File1.scpt
set GG to "I am global"
File2.scpt
set file1 to (load script file "Macintosh HD:Users:mowri:Desktop:File1.scpt")
run file1
display dialog GG
Ref.: [Handlers in Script Applications - run Handlers|http://developer.apple.com/mac/library/documentation/AppleScript/Conce ptual/AppleScriptLangGuide/conceptual/ASLRabout_handlers.html#//appleref/doc/uid/TP40000983-CH206-SW14]
Message was edited by: Pierre L.

Global Variable Access in OWB.

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