Entity DATE type attribute : Derieved From SQL Expression for date format

Question

Hi,
I want to set one of the Entity's Date Attribute with specific format , for e.g DD-MM-YYYY
I see a Derieved From SQL Expression checkbox, how can I define the SQL Expression
can I use TO_DATE(EMP_START_DATE,'DD-MM-YYYY'), I want to insert a date in that format, when I am creating a row using viewObject.createRow()
Java Type is oracle.jbo.domain.Date which take YYYY-MM-DD as a string, I do not want to use this format
Thanks,

Answer 1

Here is a solution, but I am sure it is not the best one. It will work in a hurry. Maybe you can create a helper method to generalize this conversion until something more succinct comes along for US:
This code assumes an import of jbo.oracle.domain.Date.
    public void updateDateTest () {
        AddressesViewImpl lVO = (AddressesViewImpl)this.getAddressesView1();
        AddressesViewRowImpl lRow = (AddressesViewRowImpl)lVO.first();
        System.out.println("create date for current record is currently: " +
                           lRow.getCreationDate());
        java.util.Date today = new java.util.Date();
        SimpleDateFormat dateFormat =
            new SimpleDateFormat("dd-MM-yyyy");
        SimpleDateFormat jboDateFormat =
            new SimpleDateFormat("yyyy-MM-dd");
        String lSampleDateString = "15-04-2010";
        java.util.Date lSampleDate = null;
        try {
            lSampleDate = dateFormat.parse(lSampleDateString);
        } catch (ParseException e) {
            System.out.println("Parsing exception thrown:  " + e.getMessage() +
                               "\n ==> caused by \n==>"+ e.getCause().getMessage());
            lRow.setCreationDate(new Date(jboDateFormat.format(lSampleDate)));
        System.out.println("about to commit; create date for current record is currently: " +
                           lRow.getCreationDate());
        this.getDBTransaction().commit();
        System.out.println("resetting to some other date; create date for current record is currently: " +
                           lRow.getCreationDate());
            lRow.setCreationDate(new Date(jboDateFormat.format(today)));
        this.getDBTransaction().commit();
    }I defined this code in my Application Module Impl file and ran it with the BC tester. Here was its output:
Mar 18, 2010 8:27:54 AM oracle.jbo.jbotester.MainFrame main
INFO: BC4J Tester started.
Source breakpoint occurred at line 66 of FusionExperimentsAMImpl.java.
create date for current record is currently: 2009-02-02 12:09:54.0
about to commit; create date for current record is currently: 2010-04-15
resetting to some other date; create date for current record is currently: 2010-04-15I spent a little time looking around the forum for additional solutions. I think several years ago I even wrote a blog entry on this subject. If I remember how to do this right I will amend with more information.