dev@woodstock.java.net

Re: Postback problem for SerialClob object bound to a TextArea component

From: richard ratta <Richard.Ratta_at_Sun.COM>
Date: Mon, 29 Sep 2008 00:22:05 -0400

HandyGeek wrote:

> Thank you for posting, Richard. Until now, I had no idea that
> anything happened to the team, other than a sudden and obvious
> silence. I would further suppose that you cannot elaborate

...you suppose correctly ....

> on what we as users can expect with the future of Woodstock? No
> offense taken if you choose to ignore that question.
>
> Regarding the Character Large Object type (CLOB), John Baker is the
> Sun technician working this issue for me. The table component's Text
> Area will display CLOB data - but issues an obscure message on post
> back (for example, trying to edit, then post back the CLOB data).
> Refer to issue http://www.netbeans.org/issues/show_bug.cgi?id=148194

I'm afraid the stack trace in that report does not indicate to me that
Woodstock component
is the issue. There seems to be some serialization issue with container
session.

at java.io.ObjectInputStream.<init>(ObjectInputStream.java:277)
        at org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:428)
        at org.apache.catalina.session.StandardManager.load(StandardManager.java:372)


Make sure that any ManagedBeans like SessionBeans can be serialized and
resurrected correctly
after being serialized. One sanity check my be to turn off session
persistance in the container.

This point I believe is well before the request is being processed by
JSF, at least from the
minimal stack trace shown.

-rick

>
> Best regards,
> David
>
> richard ratta wrote:
>
>> This is because "we" (the former Woodstock development team) are no
>> longer assigned to
>> Woodstock development.
>>
>> I have remained on the alias, in case I can be of help in my spare
>> time. This means that if
>> I am familiar with a problem I will usually respond. If I am not
>> familiar with a problem
>> and it will require as much investigation for me as the reporter,
>> then I usually do not respond.
>>
>> In particular I don't respond to email that I cannot understand like
>> this one that
>> refers to "CLOB" which I do not feel like trying to figure out ;)
>>
>> -rick
>>
>> HandyGeek wrote:
>>
>>> John,
>>> Having lurked on this list for several months, it appears lately
>>> that team members are very selective on posts they respond to.
>>>
>>> /David
>>>
>>> John Baker wrote:
>>>
>>>>
>>>> Does anyone reply to messages sent to this group ?
>>>>
>>>> John
>>>>
>>>> John Baker wrote:
>>>>
>>>>>
>>>>> I have an application that uses a converter to convert a CLOB type
>>>>> to String. The converter works and when executing the
>>>>> application, the converted value appears in a TextArea component.
>>>>>
>>>>> However, if I do a postback then I get an ambiguous error message
>>>>> in a message component.
>>>>>
>>>>> It seems that TextArea does not support *LOB types
>>>>>
>>>>> Is there any way to display the value of the CLOB in a TextArea?
>>>>>
>>>>> Or, I should bind the TextArea to a String then cache the CLOB value
>>>>> and use the converter to set the TextArea value?
>>>>>
>>>>> John
>>>>>
>>>>
>>>>
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>>>>
>>>>
>>>
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>
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