Recent changes to support-requests

DbForms: setAttribute non-serializable on JBoss 404 and Tomc

Ivan Codarin — Tue, 04 Jul 2006 10:54:53 -0000

Dears,
I'm back... after a long time.. this means that
jdbforms is very very stable!
I'm trying to move my dbforms apps from a simple
apache+tomcat environment to a JBoss Clustered
Application server.
To use replicated HTTP sessions I need to tag my app as
distributable inside web.xml.

When I do this I get a huge amount of exceptions where
Tomcat (the one embedded in Jboss) is telling me that
different classes (mine but also of jdbforms) are not
serializable.
The correct error message is:

java.lang.IllegalArgumentException: setAttribute:
Non-serializable attribute

and this happens for example on the
SingleConnectionProvider class, but also on the Config
servlet, and so on...

Im using dbforms 2.4 in this application.
This sounds me very strange and it seems to be
connected to the new versions of tomcat... I think that
if I change all classes implementing the Serializable
interface I can solve the problem but I'm not sure this
is the correct way...

Anyone of you had the the same problem? To give it a
try it's very simple... you can add the
<distributable/> tag on your web.xml under the starting
<webapp> tag.

Many thanks
Ivan

PS
Is the mailing list working? I sent twice this message
without any acknowledge... and it is not present in the
archive...??

Problem with label fields and Validation

sphawkins — Mon, 24 Oct 2005 16:41:40 -0000

I have setup a form with validation on some of the
fields, when the navNext button is clicked the form is
validated and if any fields fail the validation the
relevant error message is shown and the textFields and
dateFields etc show the same data as before but the
label field (showing the key field) shows the data for
the next record and if any field is amended its this
next record that gets updated.

Steven

Check for changes to data

Anonymous — Wed, 14 Sep 2005 14:49:19 -0000

I want to be able to check for any changes made to the
data when navigating away from the current record and
display a conformation box asking if the user wants to
accept or cancel the changes. Is there anyway of doing
this?

devgui win32 classpath spaces problem

Anonymous — Wed, 13 Apr 2005 14:31:11 -0000

I can't get the devgui.bat file to work in a Windows XP
environment. I know that you can't have any spaces in
the DBFORMS_HOME variable, but it seems that the
classpath that's created by devgui.bat won't tolerate
spaces either.

Here is my classpath:
C:\dbforms\bin\dbforms2.5.jar;C:\Sun\AppServer\lib\j2ee.
jar;C:\Program Files\Apache Software
Foundation\Tomcat 5.0\common\lib;C:\Program
Files\Apache Software Foundation\Tomcat 5.0
\common\lib /jsp-api.jar;C:\Program Files\mysql-
connector-java\mysql-connector-java-
3.1.7;C:\WINNT\System32
\QTJava.zip;$XALANLIBDIR/xalan.jar;$XALANLIBDIR/xer
cesImpl.jar
Note the spaces in "C:\Program Files\Apache Software
Foundation\Tomcat 5.0\common\lib" for example.

Here's what I see in the command window when I try to
run the devgui.bat file:
C:\dbforms\bin>devgui
Exception in thread "main"
java.lang.NoClassDefFoundError: Files\Apache

I created a work-around by substituting underscores
("_") for spaces in the command line, as follows:
C:\Sun\AppServer\jdk\bin\java -
classpath .;C:\dbforms\bin\dbforms2.5.jar;C:\Sun\AppSe
rver\lib\j2ee.jar;C:\Program_Files\Apache_Software_Fou
ndation\Tomcat_5.0\common\lib\servlet-
api.jar;C:\Program_Files\mysql-connector-java\mysql-
connector-java-3.1.7.jar -
DDBFORMS_HOME=C:\dbforms
org.dbforms.devgui.DevGui

I'm afraid that the underscores will create problems
later. I searched the wikki without success regarding
this proiblem.

Any help would be greatly appreciated.

Thanks,
Charles Kogge

[No data] written for NULL fields

Anonymous — Wed, 30 Mar 2005 21:36:40 -0000

When I test my application locally (websphere 5.1
server), the null fields are displayed as empty string but
when I test on another websphere server, the fields are
displayed as "[No Data]". Do you know why ?

Thanks !

Table users not found in configuration

Paul Mahoney — Mon, 11 Oct 2004 08:21:58 -0000

I have set up a simple dbforms project and appear to
have a trivial configuration problem. I've checked
everyting I can think off but cannot get the application
(jsp) to find the entry for table "users" in dbforms-
config.xml

I have attached the relevant files and would ask of the
team 2 things.

1. Would someone "eyeball" them for some obvious error?
2. Can anyone tell be how to get more debug to help
trace the roblem?

Many thanks

Paul

Limit results returned

Paul Donachy — Thu, 29 Jul 2004 11:56:56 -0000

Im trying to create a simple list view results page. My
table size is very large over 100k entries.

I keep getting the tomcat5 root cause errer "out of
memory". Guess the query Select * from x is too large.

Is there anyway of limiting the size of the resultset
returned within dbforms. e.g. in mysql the limit
command ?

regards,
Paul

Here is the dbforms code:

<db:dbform autoUpdate="false" followUp="/pol.jsp"
maxRows="50" tableName="caseinfo" orderBy="ref_no" >
<db:header>

<db:navFirstButton style="width:90"
styleClass="black" caption="<< First"/>

<db:navPrevButton style="width:90"
styleClass="black" caption="< Previous"/>

<db:navNextButton style="width:90"
styleClass="black" caption="Next >"/>
<db:navLastButton style="width:90"
styleClass="black" caption="Last >>"/>

</db:header>
<db:errors/>
<db:body>
<p><db:label
styleClass="black" fieldName="id" nullFieldValue=""/>,
<db:label
styleClass="black" fieldName="ref_no" nullFieldValue=""/>,
<db:label
styleClass="black" fieldName="location" nullFieldValue=""/>

</db:body>
<db:footer>
</db:footer>
</db:dbform>

1.1.4dev download

David Martin — Mon, 26 May 2003 05:08:45 -0000

1.1.4dev download zip seems to be corrupt...