Using serialized objects for 'static' perso

Hi,
I guess this is food for thought. I am looking at the following avenue.
use serialized objects - compliant with the back office software - as 'static' perso. by static I mean all perso data that the card simply stores and does not need to use/modify to function.
These objects could change over time (data and methods) without having to re-issue card applications; and many "genertions" of cards could exist on the field as the back office software would know how to adjut to them.
Has this been done/looked at before ?
Regards,
Philippe

Hi,
What I meant was use objects serialized by software (outside of the card) to personalize easily all data that:
1) have the same access security level
2) do not need any modification/understanding from the applet
My post is quite old now ...
I actually have done it and it is quite useful, at least to setup prototypes.
Regards,
Philippe

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Hi,
Nothing wrong in using Helper class to insert into table. It won't create problem as long as your database server able to handle that many request from client.
If you use weblogic server and datasource, the server will take care of all connection pool management depending upon your configuration parameters.
Moreover, insert won't lock the table. So you need not worry about those things.
Best Luck,
Senthil Babu
Developer Technical Support
SUN Microsystems
http://www.sun.com/developers/support/

Problem in using View Object for validation

Hi,
I have defined a simple swing form to practice. It has one Entity Object and two View objects. One of these view objects is an updatable VO based on the EO and the other one has a simple "select count(*)" from a table. I defined a method validation on one of the EO attributes to see how can i use the VO for validation. On the other hand i defined the Application Module to use both of my views. As far as i undrestood, when i define a VO for AM, the AM will instantiate it the first time it starts running. Here is the code inside the method validation for FirstName attribute:
/**Validation method for FirstName
public boolean validateFirstName(String data) {
ViewObject vo = getDBTransaction().getRootApplicationModule().findViewObject("CountEmployeeInstance");
if (vo == null) {
System.out.println("vo is null");
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if (vo.hasNext()){
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Please tell me that what is my problem and why is it working like this?
Best Regards,
Alireza Vali

Chris,
1- Every thing is fine with the ADF model layer in this practice. I have tested it by using Test option on AM and it works. It works exactly the same as how it works throug swing UI that i use for it.
2- The VO is beeing found and as you see in the code, i have tested it by "if (vo == null)" just after the statement which finds it and vo is not null which means it has been instantiated by AM as it was supposed to.
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Every thing is OK with swing form. It runs and shows the records and all the binded operations like "next record", "previous record" and so on work perfectly on the records.
4- The code i used is a combination of two examples. Example 9-7 and 9-8 in pages 9-12 and 9-13 of mentioned document.
Now my findings:
I changed the code to the following:
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    public boolean validateFirstName(String data) {
        ViewObject vo = getDBTransaction().getRootApplicationModule().findViewObject("MaxEmployeeIdInstance");
        if (vo == null) {
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            vo.next();
            System.out.println("Slot after next() = " + vo.getCurrentRowSlot());
            vo.reset();
            System.out.println("Slot after reset() = " + vo.getCurrentRowSlot());
            vo.first();
            System.out.println("Slot after first() = " + vo.getCurrentRowSlot());
            vo.last();
            System.out.println("Slot after last() = " + vo.getCurrentRowSlot());
            System.out.println("----------------------");
            vo.executeQuery();
            System.out.println("Deafault index = " + vo.getCurrentRowIndex());
            vo.next();
            System.out.println("Index after next() = " + vo.getCurrentRowIndex());
            vo.reset();
            System.out.println("Index after reset() = " + vo.getCurrentRowIndex());
            vo.first();
            System.out.println("Index after first() = " + vo.getCurrentRowIndex());
            vo.last();
            System.out.println("Index after last() = " + vo.getCurrentRowIndex());
            System.out.println("Slot Before First = " + vo.SLOT_BEFORE_FIRST);
            System.out.println("Slot Beyound Last = " + vo.SLOT_BEYOND_LAST);
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Row Count = 1
Default Slot = 0
Slot after next() = 3
Slot after reset() = 0
Slot after first() = 0
Slot after last() = 0
Deafault index = 0
Index after next() = -1
Index after reset() = 0
Index after first() = 0
Index after last() = 0
Slot Before First = 2
Slot Beyound Last = 3
As you see, after the execution of the statement "vo.executeQuery()" the The RowIterrator pointer is not pointing to the slot before the first record but it is pointing to the first record itself. And that is why the statement "if (vo.hasNext()" returns false because we just have one record and RowIterrator Index is standing on that record and there is no next record present. The very important thing is that even reset() method does not set the index to the slot before the first record and it sends it to the first record.
After that, i took the statemet "vo.closeRowSet()" out of the comment and here are the results:
Row Count = 1
Default Slot = 2
Slot after next() = 0
Slot after reset() = 2
Slot after first() = 0
Slot after last() = 0
Deafault index = -1
Index after next() = 0
Index after reset() = -1
Index after first() = 0
Index after last() = 0
Slot Before First = 2
Slot Beyond Last = 3
These are the exact things that we expected from the first. After query execution, the pointer is set to the slot before first record and the reset() method does its defined job which is sending the pointer to the slot before the the first record.
My Assumptions:
The Rowset which is created by AM is somehow different from the RowSet which you create in your program. I am absolutely sure that this functionality is not a bug but a design decission. I look at my simple program and see that when it runs, the data is queried and shown on the screen which is all done by AM by instantiating my VO and executing the query on it. AM reasonably must put the RowSet pointer on the first record and not the slot before first record. And i am sure that if i use reset() method on the shown RowSet, the pointer goes to the first record and the data on the screen does not get cleared. Whe we use vo.closeRowSet() and execute the query again, the AM made RowSet is closed and a new one is created and the new RowSet is your's not AM's so it functions as you expect.
Best Regards,
Alireza Vali

Is it mandatory to use Business object for data transfer and work flow?


<pre>
In our enterprise projects we deal with some screens where we add or update some data and again
we retrieve that data and display to user in various ways like displaying on screen as
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I really appreciate your comments on this topic.
Also I apologize ahead of time if my explanation is not clear to you.
</pre>


Thanks in advance.

Regards,

Rizwan.

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Hi,
Go throught Document it will Give you eight Reasons why OOABAP Should be used.
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Hi all,
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The Help for SAP Transactional iView can be found here - but although I have followed these steps and an associated blog it still does not work for me. Perhaps you will have more luck. See below for my particular error (if your able to help me ;-).)
SAP Help for SAP Transactional iView
http://help.sap.com/saphelp_nw04/helpdata/en/02/f9e1ac7da0ee4587d79e8de7584966/frameset.htm
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I searched the forums and couldn't find anything related to this topic.
I saw that it was possible to use the parallel port for simple digital I/O and I was hoping the serial port can be configured the same. It seems all the VISA VI's only want to use the serial port to recieve ASCII chars at a given baud rate, but is it possible to simply poll the status of the serial line at my own speed to see if it is high or low, kind of like a single pin DAQ?
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Message Edited by Dennis Knutson on 07-20-2009 11:09 AM

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Dear all,
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venu

Dear Mayank Gupta
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Using serialized objects for 'static' perso

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