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SetTransObject is invalid after several hours
  1. New
  2. Issue
0 Votes
  1. Stefano Neri
  2. PowerBuilder
  3. Tuesday, 9 December 2025 09:36 AM UTC

 

I’m using PowerBuilder 2025 Build 3726.
We have a client/server application originally developed with an Informix database, which we are now migrating to SQL Server.

// Translate SQL
String			ls_dbtype, ls_syntax,	ls_errore
String			ls_dbparm, ls_object
LongLong	ll_handle
Long			ll_valore
Integer		li_retu

ls_dbtype 		= ''

// Datawindow/Datastore name
ls_object = Trim(This.dataobject)
if isnull(ls_object) Then	ls_object = ''

// Control is valid
if not isvalid(t) Then
	f_hg_trace(0, 0, classname(), "Settransobject", '-1', "Transazione not is valid : " + ls_object)
	ls_dbparm = ''
else
	ls_dbparm = t.dbparm
end if

// Control syntax
ls_syntax = Trim(Describe("datawindow.table.select") )
if isnull(ls_syntax)	Then	ls_syntax = ''
if Len(ls_syntax) <= 5 Then	
	if Upper(ls_object) <> 'DW_VUOTA' Then
		f_hg_trace(0, 0, classname(), "Settransobject", '-1', "syntax not found :" + ls_object)
	end if
	Return	1
end if

li_retu = Super::settransobject(t)
if li_retu = 1 Then
	if guo_sql_translate.of_sql_translate(ls_dbtype, ls_syntax, ls_errore ) >= guo_sql_translate.ci_OK  Then		// *** ##SQL TRANSLATE## ***//
		// Controllo dopo la traduzione
		if isnull(ls_syntax)	Then	ls_syntax = ''
		if Len(Trim(ls_syntax)) <= 5 Then	
			f_hg_trace(0, 0, classname(), "Settransobject", '-1', "syntax not found :" + ls_object)
			Return	1
		end if
		if isvalid(This.Object) Then
			This.Object.DataWindow.Table.Select = ls_syntax
		else
			// POINT ERROR 
			f_hg_trace(0, 0, classname(), "Settransobject", '-1', "Table.Select su: " + ls_object + " Errore: Object not is valid .")
		end if
	end if
else
	f_hg_trace(0, 0, classname(), "Settransobject", string(li_retu), "Error su: " + ls_object + ' on Syntax: ' + ls_syntax)
end if

Return	li_retu

In the ancestor class of our DataStore objects, we have overridden the SetTransObject function to include some SQL syntax translation logic. Normally everything works correctly:
li_retu = Super::SetTransObject(t) returns 1 as expected.

However, after several hours of normal operation, the transaction object suddenly becomes invalid.
Right after calling Super::SetTransObject(t), the object is valid, but later in the same overridden method the check:

If IsValid(This.Object) Then

unexpectedly returns FALSE.

It looks like the transaction object gets destroyed or becomes corrupted after running fine for hours.

What could be causing this issue, and how can we prevent the transaction object from becoming invalid?

Fammi sapere se vuoi aggiungere dettagli tecnici o allegare codice.

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