Thanks Andreas , the problem is that everything works until I insert the
javascript.
In fact the exception is thrown inside the Script implementation. Down
here you'll find the init part of the srtack trace.
I was wondering if not using the @Body in the component html template is
correct, given the fact that it is used in the html template of the page
that call the component.
* ognl.OgnlRuntime.getProperty(OgnlRuntime.java:2203)
* ognl.ASTProperty.getValueBody(ASTProperty.java:114)
* ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:212)
* ognl.SimpleNode.getValue(SimpleNode.java:258)
* ognl.ASTChain.getValueBody(ASTChain.java:141)
* ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:212)
* ognl.SimpleNode.getValue(SimpleNode.java:258)
* ognl.Ognl.getValue(Ognl.java:494)
* ognl.Ognl.getValue(Ognl.java:458)
*
org.apache.tapestry.services.impl.ExpressionEvaluatorImpl.readCompiled(ExpressionEvaluatorImpl.java:123)
*
org.apache.tapestry.services.impl.ExpressionEvaluatorImpl.read(ExpressionEvaluatorImpl.java:112)
*
$ExpressionEvaluator_125e178e557.read($ExpressionEvaluator_125e178e557.java)
*
org.apache.tapestry.script.ScriptSessionImpl.evaluate(ScriptSessionImpl.java:86)
* org.apache.tapestry.script.AbstractToken.evaluate(AbstractToken.java:84)
* org.apache.tapestry.script.InsertToken.write(InsertToken.java:48)
*
org.apache.tapestry.script.AbstractToken.writeChildren(AbstractToken.java:71)
* org.apache.tapestry.script.LetToken.write(LetToken.java:53)
*
org.apache.tapestry.script.AbstractToken.writeChildren(AbstractToken.java:71)
* org.apache.tapestry.script.ParsedScript.execute(ParsedScript.java:82)
* org.apache.tapestry.html.Script.renderComponent(Script.java:159)
* org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:724)
*
org.apache.tapestry.services.impl.DefaultResponseBuilder.render(DefaultResponseBuilder.java:187)
* org.apache.tapestry.BaseComponent.renderComponent(BaseComponent.java:107)
* org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:724)
*
org.apache.tapestry.services.impl.DefaultResponseBuilder.render(DefaultResponseBuilder.java:187)
*
org.apache.tapestry.AbstractComponent.renderBody(AbstractComponent.java:538)
* org.apache.tapestry.html.Body.renderComponent(Body.java:38)
Andreas Andreou ha scritto:
> Hi,
> The error message says that something.getName() is trying to get evaluated but
> something is null
>
> Finding where exactly the error is thrown will show you which object is
> null...
>
> On Wed, Dec 30, 2009 at 20:51, Ivano Luberti <lube...@archicoop.it> wrote:
>
>> Hello, I'm trying to include some simple javascript in a component in my
>> T4 application.
>> I want my only textfield to get focus when is displayed.
>> I'm following the instructions provided at:
>>
>> http://tapestry.apache.org/tapestry4.1/components/general/script.html
>>
>> The template of the page including the component has @Shell and @Body
>> specified.
>> My component looks like this:
>>
>> <html>
>> <head>
>> <title>MET Online</title>
>> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
>> <link href="css/stile_palmare.css" rel="stylesheet" type="text/css">
>> </head>
>> <body>
>> <span jwcid="@Script"
>> script="/it/archimede/met/metgestioneingressi/tapestry/scripts/FormFocus.script"
>> component="ognl:components.barCode"/>
>>
>> <div id="box_operazione">
>> <h1>Lettura BarCode</h1>
>> <br />
>> <h2>passare il barcode sotto il lettore ottico</h2>
>> <form method="post" action="" jwcid="barCodeForm">
>> <input type="text" jwcid="barCode" class="text_box" value="" />
>> <br /><br />
>> <input type="submit" name="Submit" value="Submit" class="bottone">
>> </form>
>> </div>
>>
>> </body>
>> </html>
>>
>> The Script template file is the last one provides at:
>>
>> http://tapestry.apache.org/tapestry4.1/components/general/script.html
>>
>> the one without CDATA
>>
>> When I try to display the page I get:
>>
>> [ +/- ] Exception: Unable to read OGNL expression '<parsed OGNL
>> expression>' of
>> {component=$textfield_...@81eb97c1[homeloggeduser/barCodeForm.barCode]}:
>> source is null for getProperty(null, "name")
>>
>> I have already tried putting a bad component name in the @Script span
>> and the error changes, so it seem the name is right. I have put a bad
>> path to the script file and the error changes , then the path is correct.
>>
>> Can someone point me in the right direction?
>>
>>
>>
>> --
>> ==================================================
>> dott. Ivano Mario Luberti
>> Archimede Informatica societa' cooperativa a r. l.
>> Sede Operativa
>> Via Gereschi 36 - 56126- Pisa
>> tel.: +39-050- 580959
>> tel/fax: +39-050-9711344
>> web: www.archicoop.it
>> ==================================================
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
>> For additional commands, e-mail: users-h...@tapestry.apache.org
>>
>>
>>
>
>
>
>
--
==================================================
dott. Ivano Mario Luberti
Archimede Informatica societa' cooperativa a r. l.
Sede Operativa
Via Gereschi 36 - 56126- Pisa
tel.: +39-050- 580959
tel/fax: +39-050-9711344
web: www.archicoop.it
==================================================
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
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