Variable of variable concept in AS

Hi,
In flex how can i use the variable of variable concept , i
want to create the dynamic instance for ArrayCollection class like
below ,
for(var i:int=1;i < 3; i ++){
var objname = "ArrCol"+i;
objname:ArrayCollection = new ArrayCollection();
Expected Result :
ArrCol1 , ArrCol2 these two instance should be created .....
Any ideas plz let me know ,

Sorry, i did that from memory, and too quickly.
The bracket notation will only create an Object, but since
almost everything else extends object, this is not really a
problem.
change the line to this:
this[sObjname] = new ArrayCollection();
The newly created instance variable will contain an
ArrayCollection. You *might* need/want to cast it to Array
collection using "as" when you go to use the var:
var acTemp:ArrayCollection = this[sObjname] as
ArrayCollection;
Tracy
Tracy

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Help with "owned" variables concept in WPF

I'm trying to move from WinForms to WPF and so far it's been going well. I'm struggling with the concept of updating variables from events in my code behind. It says that it was created or owned by another thread. Basically in my code all over the place I am
having to put:
this.Dispatcher.Invoke((Action)(() => { //Code Here }));
Generally this is happening from an async call to update some data.
Am I doing something fundamentally wrong in my design?
If this snippet of code is the solution, how do I understand without the runtime compiler telling me, when I should be doing it?
Can you explain what is happening with the Dispatcher.Invoke ((Action)(() =>{}));
My thinking so far
(Action) is casting the (() => {}) to an action object
() is creating a nameless function?
=> {} define the function right here, we could have pointed to a real function if we wanted.
Thanks for any education you can give me.

The thing is that you can only update a UI element on the thread on which it was created. This rule applies to both Windows Forms and WPF. Please refer to the following great article for more information about the threading model in WPF:
https://msdn.microsoft.com/en-us/magazine/cc163328.aspx. You should only create UI elements (TextBoxes, Buttons, etc.) on the UI thread and not on any background thread.
>>Can you explain what is happening with the Dispatcher.Invoke ((Action)(() =>{}));
The delegate (Action) that you pass to the Invoke method will be executed on the UI (or dispatcher) thread. Please refer to the above article for more information.
>>If this snippet of code is the solution, how do I understand without the runtime compiler telling me, when I should be doing it?
The Dispatcher has a CheckAccess() method that returns false if you are required to call the Invoke method, i.e. if the current thread doesn't have access to the UI object. You could just call this one before you call the Invoke method:
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Hope that helps.
Please remember to close your threads by marking helpful posts as answer and then start a new thread if you have a new question. Please don't post several questions in the same thread.

Bind Variable concept

I would like to know the concept of bind variable and the places it can be accesed.I have found that the bind variable cannot be accesed inside a procedure directly .Why is it so?

If you use variables in the select statements, then it means you can reuse previous plans, improving performance. Plsql does have variables.
http://www.akadia.com/services/ora_bind_variables.html
What are you trying to run, and what errors are you getting.

Bind variable in OBIEE 11G

Hi,
Is there any bind variable concept in OBIEE 11g.
If it is not there then how to achieve this.How to write a where clause to get the result set dynamically.
Thanks-Bhaskar Gouda
Edited by: 961171 on Sep 25, 2012 12:44 AM

Hi,
I can make use of repository variable ,but my scale marker doesn't get changed .I am giving all the details .Please help me if you can.
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select trucks.factrucks
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Now i want to add a where clause say:
select trucks.factrucks
from "plant model"
where truckid=:p_truckid;
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Thanks-Bhaskar

Usage of Bind Variable

Hi
Can any one help me ineffectively usage of Bind Variables in 11 g. I have the requirement something like I have 10 input parameters. I have to frame a view object in such a way that If I receive either of the 10 input parameters from the User Interface I have to perform a query by setting the inputer parermeters in the where cluase.
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What is the best approach in this case?
Thanks

Why not use dynamic runtime named bind variables?
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How to use text variables?

Hi,
I have a text variable 'ZEMAIL' with data element 'COMM_ID_LONGu2019.The routine corresponding to this is 'GET_ZEMAIL' in 'ZHKMIT30' program.
Now I have to retrieve emloyee E-mail ID (infotype 0105 i.e.PA0105 DB table, subtype 0010, field USRID_LONG) and has to populate in ZEMAIL. How?
I am very new to this text variables concept
How to get this text variable implemented? Please help.

select pernr subty usrid_long
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             into table it_pa0105
          where pernr in s_pernr
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loop at it_pa0105.
ZHKMIT30-ZEMAIL = it_pa0105-usrid_long.
insert ZHKMIT30.
endloop.

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?

Customer Exit Variable to fetch the data from the cube..

Hello Gurus,
I am having a requirement to select the latest changed record from the cube while executing the query. where we are having the Calday as the date with a variable .
I suggested my client we can filter it at the DSO leve or Data loading level but my client dont want to distrurb the existing design so he want to perfrom the changes at the Query level only.
For Example we are having below records in the cube.
PO             Material     Calday       Qty         Price
101            ABC          1/12           100         10
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I am having Calday in the selection screen as the variable.
Now from the above example i need to show the record which has been changed on 3/12.
For this i am planning to write the customer exit variable on the calday , when the user enter the range of Calday then i will fetch the whole records which fall in between the range and i will sort each PO with respect to the date and i will pick those which are the latest records.
My Concerns:
!. Kindly let me know if it is possible and what are the other things that i need to consider.
2. Did it will impact the performance.
Waiting for your quick replies
Thanks & Regards
KK

Hi Mate,
Sorry for late reply.
By d way in your word.
initially when the user enter the date range as the vairable input. suppose 1/12 to 31/12 then i will pick all those records which fall in this range.
suppose the records are
PO Date
P1 01/12
P1 02/12
P2 02/12
P2 03/12
P3 03/12
P3 04/12
In the customer exit variable Now for each PO i will sort the date in ascending order and i will pick the last record to display it in the Report.
The ouput will be
PO Date
P1 02/12
P2 03/12
P3 04/12
Now hope you are aware about exit variable concept.
so what value will pass in the calday filter.
here after sorting on each PO , you will get 3 different dates, 02/12 for P1
03/12 for P2
and 04/12 for P3
Now if you are aware about exit variable concept, then you will pass this three date to CALDAY(I_t_VAR_Range-low = ...)
but how query will understand that for P1 calday filter value is 02/12, for P2 calday filter value is 03/12.... and so on...
actually i have also experienced this kind of issue 1-2 years before, i have tried same thing at that time without thinking and stuck with this problem..
By d way you can also learn from your mistake.. so just try ur logic and then you will understand what is the problem?
By d way this will not work, parallel you can work on other solution.

BEX Query- Auth Variable

Hello Experts,
I am lost with the functionality of the Auth Variable in the BEX Query.
I have an AS IS 3.5 system in which I have a Query where there is an auth variable on Cost center ZXXXXXX.It is working fine.
In order to implement the same logicon a new to be system I need to create the entire scenarion on my system
(Like assigning roles and make this Query Function exactly as in the AS IS system)
Reamaining things of the Query I have developed with out any issue. But, How to exactly implement this auth variable concept on
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Couls you please help me how exactly this functionality works
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Regards,

Hi,
Although the authorization concept has changed from 3.x to 7.0 the authorization variables that you create should work.
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RSEC_GET_AUTH_FOR_USER
Brian

Concept of variable-free programming.

Can anyone clearly explain the "concept of variable-free programming",
in Object Oriented Programming with a sample code.
Thank you very much

Google says:
["variable-free programming" found in Google search|http://books.google.com/books?id=Sz4fsW1CMrIC&pg=PA390&lpg=PA390&dq=concept+of+%22variable-free+programming%22&source=bl&ots=k2E1ea0ENf&sig=zl2lsjo5V-bdXuJvaGEhSjStiZw&hl=en&ei=3avVSfT3FKaMtgOxr72sCg&sa=X&oi=book_result&ct=result&resnum=5#PPA391,M1]
Bottom of page 390 to top of page 391. It's a C# book, but the accessor (getter and setter) concept is certainly used in Java. The whole paragraph could be applied to Java. [Google's book search doesn't let you cut-and-paste the full paragraph, and I don't feel like typing it all myself. ;) ]
Google finds the term elsewhere, too.
That said, I've certainly never heard the term (and, obviously, the other people in the thread haven't heard it, either).

Concept of variable

Hi,
I have a scenario wherein i ge the table name from a select query in a variable and then i have to do another select query on this new table. But because this table name is stored in variable, i'm not gettign how to do a select query on it.
Regards
Aadil
Thanks for help!!!

Hi
Try this :
1-To assign a variable a type at runtime, use the ABAP statement ASSIGN with the option TYPE. For instance:
DATA: D_TYPE,
D_FIELD(35).
DATA: D_TEST TYPE P.
FIELD-SYMBOLS: <F>.
D_FIELD = 'D_TEST'.
D_TYPE = 'P'.
ASSIGN (D_FIELD) TO <F> TYPE D_TYPE.
Additionally you can use the option DECIMALS of the ASSIGN statement if your type is 'P'. You can even change the type at runtime of previously assigned field symbol like
ASSIGN <F> TO <F> TYPE 'C'.
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2-FIELD-SYMBOLS:
<fieldname> TYPE ANY, "Name of field
<line> TYPE ANY, "Line structure for table
<fieldvalue> TYPE ANY. "Value of field
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Assign structure for internal table
ASSIGN wa_pa1_delta TO <line>.
Assign field value from structure
ASSIGN COMPONENT <fieldname> OF STRUCTURE <line> TO <fieldvalue>.
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SELECT SINGLE ddtext
FROM dd03m
INTO l_shorttext
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fieldname = <fieldname> AND
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WRITE: / <fieldname>, l_shorttext, ' : ', <fieldvalue>.
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Regards
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Is there any concept in LabVIEW that is similar to static local scope variables in C?

I'd like to retain the value between calls to a subVI, as can be done using a static function scoped variable in C. The textbook example of how this is used would be a variable in the function that is a state machine, and knows what state it was in last time it was executed. A simpler example would be just keeping count of how many times the function has been called.
I suppose I could use a global or I could pass values in and out of the subVI, but I'd like to keep the variable known only in the scope of the subVI if at all possible. For example, the outside world has no business knowing (or god forbid) changing what the state information of this function is.

Bmarsh wrote:
> I'd like to retain the value between calls to a subVI, as can be done
> using a static function scoped variable in C. The textbook example of
> how this is used would be a variable in the function that is a state
> machine, and knows what state it was in last time it was executed. A
> simpler example would be just keeping count of how many times the
> function has been called.
>
> I suppose I could use a global or I could pass values in and out of
> the subVI, but I'd like to keep the variable known only in the scope
> of the subVI if at all possible. For example, the outside world has
> no business knowing (or god forbid) changing what the state
> information of this function is.
There is no need to do something "conceptual" or spec
ific to have this
static variable. You already have this in any control or indicator in
your sub-vi while it is in memory. Control/indicator value will remain
in sub-vi data space between calls. Don't forget about make your sub-vi
non-reentrant or keep track of sub-vi data space copies.
If you want to read/write this value from another vi, consider it global
or I'd prefer to suggest using functional global(uninitialized shift
register in 1 iteration while loop). Think of it as about 1 value data
repository.
LabVIEW CIN reference manual is a good place to look at, as well as
LabVIEW course kits, describing LabVIEW memory issues in details.
To simplify: create empty sub-vi with control and indicator connected to
each other and call it wiring indicator in caller vi. Keep sub-vi front
panel open and change control in sub-vi manually. You see what happens.
Sergey Krasnishov
Automated Control Systems
National Instruments Alliance Member
Mos
cow, Russia
[email protected]
http://acs.levsha.ru

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Supriya,
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Variable of variable concept in AS

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