Re: What is the best way to handle invalid values from a WOTextField?
Re: What is the best way to handle invalid values from a WOTextField?
- Subject: Re: What is the best way to handle invalid values from a WOTextField?
- From: Chuck Hill <email@hidden>
- Date: Tue, 15 Jul 2008 17:26:43 -0700
On Jul 15, 2008, at 5:12 PM, Lachlan Deck wrote:
On 18/06/2008, at 3:32 AM, Chuck Hill wrote:
On Jun 17, 2008, at 10:04 AM, Ralf Schuchardt wrote:
Hi,
in the past (until WO 5.4) I often have used a WOTextField with a
formatter to prevent errors like this:
"java.lang.IllegalArgumentException: While trying to invoke the
set method "public void com.cx.harow.eos._ArztFolgedokLeistung
$StorageClass.setAnzahl(java.lang.Short)" on an object of type
com.cx.harow.arzt.dokumente.ArztFolgedokumentationContext
$TempFolgedokLeistung we received an argument of type
java.lang.String. This often happens if you forget to use a
formatter."
When a value was invalid the formatter did not set an invalid
value in my objects.
Now, in WO 5.4 this is no longer true. When the formatter fails to
parse a string it still gets pushed into the target object. As
this is documented is must somehow be considered "expected"
behavior. Unfortunately this breaks all our apps, as no class
handles those invalid strings.
Whoa! Where is this documented? I also depend on this.
I don't see this mentioned in the 5.4.2 release notes. Is there a
bug report already? How is this meant to work now?
I just tested this now and got a class cast exception in the released
version of 5.4.2 when I typed a string into a text field with a
formatter on it:
java.lang.ClassCastException: java.lang.String
[2008-7-15 17:19:11 PDT] <WorkerThread13>
java.lang.ClassCastException: java.lang.String
at
net
.foo
.core.searchfields.DateSearchField.qualifyOnValue(DateSearchField.java:
64)
That is just an out and out bug. I don't see how it can be fixed
other than by replacing WOTextField
Also having major issues with posts and forms. I am not sure of the
details, but it looks like takeValues and invokeAction both get
called, but no values are taken and no action invoked.
Chuck
--
Practical WebObjects - for developers who want to increase their
overall knowledge of WebObjects or who are trying to solve specific
problems.
http://www.global-village.net/products/practical_webobjects
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