I am not surprised at having trouble with the code in the static block. The
right place for doing this kind of thing is this_onAfterInit() of the
*Page*, whether it involves a data object or not.
Aby
TeamND
> -----Original Message-----
> From: Damian O'Connor [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, February 16, 2000 9:22 AM
> To: [EMAIL PROTECTED]
> Subject: [ND] Use of Dataobjects in Static block
>
>
>
> Hi,
>
> I have a static{} block I want to execute on our project base
> page to load data
> from our database to a set of hashtables. These I'll then
> store in global session.
>
> Unfortunately I get a null pointer when the project loads the
> first time. It looks
> like the dataobject isn't known to the project at that point.
>
> Should I add the code to the this_onAfterInitEvent of the dataobject?
>
> Any ideas for getting around this?
>
> Regards
> Damian
>
> Code:
> static
> {
> // Method to retrieve or store field display values
> loadHashTables();
> }
>
> /**
> * Searches in the DataObject <i>doqFieldDisplay</i>
> (table field_display)
> * for the entries for the given project. The resultset is
> used to create
> * the necessary lookup tables for controlling field
> display on the individual
> * pages.
> *
> * @return A number of Hashtables that contain as
> * key the <i>field name</i>, <i>page name</i> and
> * <i>cntry code</> concatentated as the key.
> */
> protected static final synchronized void loadHashTables ()
> {
> CSpLog.send("pgBase", CSpLog.ERROR, "loadHashTables()");
> boolean locked = true;
> String field_name = new String();
> String page_name = new String();
> String cntry_code = new String();
> try
> {
>
> // Check to see if we can access the global session
> // Attempt to lock the session while we
> read from it.
> while (! (locked = CSpider.lockGlobalSession ()))
> {
> java.lang.Thread.sleep (new Long("250").longValue());
> }
> CSpValue sessionExists =
> CSpider.getGlobalSessionObject (Constants.getFieldDisplaySession());
> // Verify if we need to create the
> session objects
> if (sessionExists == null)
> {
>
> CSpSelect doqFldDsp =
> (CSpSelect)CSpider.getDataObject( "doqFieldDisplay" );
>
> ******************** doqFldDsp is null *******************
>
_________________________________________________________________________
To unsubscribe from this mailing list please send an email to:
[EMAIL PROTECTED]
Please remember to use the same email address you subscribed with.
For help in using, subscribing, and unsubscribing to the discussion
forums, please go to: http://www.netdynamics.com/support/visitdevfor.html
For dire need help, email: [EMAIL PROTECTED]
