Matthias Wessendorf wrote:
> Just tested<input value=" " />
>
> and saw this is not readOnly...
>
I just tested "" and " " as expressions and both were readonly on GlassFish.
>
> On Jan 10, 2008 4:22 PM, Matthias Wessendorf <matzew_at_apache.org> wrote:
>
>> Ryan/Jacob.
>>
>> is this in the EL-Spec ?
>> that something like
>> <input value="" /> returns a readOnly:true ValueExpression?
>>
>> Thx,
>> Matthias
>>
>>
>> On Jan 7, 2008 11:00 AM, Jacob Hookom <jacob_at_hookom.net> wrote:
>>
>>> Yeah... the work I did on the Apache EL was pre-spec completion and
>>> there's since been other patches submitted through Tomcat by the
>>> IBM/Geronimo folks.
>>>
>>>
>>> Matthias Wessendorf wrote:
>>>
>>>> Nope, just that the JSF 1.1 EL was (in MyFaces ;-) ) returning null as well.
>>>>
>>>> -M
>>>>
>>>> On Jan 7, 2008 7:31 PM, Ryan Lubke <Ryan.Lubke_at_sun.com> wrote:
>>>>
>>>>
>>>>> Matthias Wessendorf wrote:
>>>>>
>>>>>
>>>>>> Hi,
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>> If it's not a real expression then shouldn't it be read-only? You
>>>>>>> certainly can't call
>>>>>>> setValue() on it and expect it to work. So I think my original quote
>>>>>>> still holds true.
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>> I wonder why tomcat handle's this as NULL.
>>>>>> In case of an object, the readonly is OK.
>>>>>>
>>>>>>
>>>>>>
>>>>> I think it's a bug in Tomcat's EL implementation.
>>>>>
>>>>> See what I've quoted previously. Can you find something in the spec to
>>>>> support
>>>>> your thoughts about the Tomcat behavior being correct?
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>> -Matthias
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>>> What is your take on that ?
>>>>>>>>
>>>>>>>> -Matthias
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> On Dec 20, 2007 11:39 PM, Matthias Wessendorf <matzew_at_apache.org> wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>> yah,
>>>>>>>>> tomorrow :-)
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Dec 20, 2007 9:09 PM, Jacob Hookom <jacob_at_hookom.net> wrote:
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>> I agree with Ryan, it should be read-only-- if you get that VE, can you
>>>>>>>>>> do a getClass() on it and let us know the type?
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> Ryan Lubke wrote:
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>> Matthias Wessendorf wrote:
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>> ok, this is only in Jetty;
>>>>>>>>>>>> just tested w/ a tomcat 6.x
>>>>>>>>>>>>
>>>>>>>>>>>> and <tr:inputText label="Label a)" value=""/>
>>>>>>>>>>>> renders as a regular inputText field;
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>> I think this may be a bug in Tomcat. The javadocs for ValueExpression
>>>>>>>>>>> states:
>>>>>>>>>>>
>>>>>>>>>>> <quote>
>>>>>>>>>>> In previous incarnations of this API, expressions could only be read.
>>>>>>>>>>> ValueExpression objects can now be
>>>>>>>>>>> used both to retrieve a value and to set a value. Expressions that can
>>>>>>>>>>> have a value set on them are referred to as
>>>>>>>>>>> l-value expressions. Those that cannot are referred to as r-value
>>>>>>>>>>> expressions. Not all r-value expressions can be
>>>>>>>>>>> used as l-value expressions (e.g. "${1+1}" or "${firstName}
>>>>>>>>>>> ${lastName}"). See the EL
>>>>>>>>>>> Speciļ¬cation for details. Expressions that cannot be used as l-values
>>>>>>>>>>> must always return true from
>>>>>>>>>>> isReadOnly().
>>>>>>>>>>> </quote>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>> -M
>>>>>>>>>>>>
>>>>>>>>>>>> On Dec 20, 2007 5:43 PM, Matthias Wessendorf <matzew_at_apache.org> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>> Hi,
>>>>>>>>>>>>>
>>>>>>>>>>>>> I have a <tr:inputText value="">
>>>>>>>>>>>>> The underlying API, says this ValueExpression is readOnly.
>>>>>>>>>>>>>
>>>>>>>>>>>>> A simple JSPX makes that clear
>>>>>>>>>>>>> (I am on JETTY jetty-6.1.2rc2 and the RI )
>>>>>>>>>>>>> I think, they (re) use the glassfish shipped javax.el
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> <?xml version='1.0' encoding='utf-8'?>
>>>>>>>>>>>>> <jsp:root xmlns:jsp="http://java.sun.com/JSP/Page" version="1.2">
>>>>>>>>>>>>>
>>>>>>>>>>>>> <jsp:directive.page contentType="text/plain"/>
>>>>>>>>>>>>> <jsp:directive.page import="javax.servlet.jsp.*"/>
>>>>>>>>>>>>> <jsp:directive.page import="javax.el.*"/>
>>>>>>>>>>>>> <jsp:directive.page import="javax.faces.context.*"/>
>>>>>>>>>>>>> <jsp:scriptlet>
>>>>>>>>>>>>> JspApplicationContext jac =
>>>>>>>>>>>>> JspFactory.getDefaultFactory().getJspApplicationContext(application);
>>>>>>>>>>>>> ExpressionFactory ef = jac.getExpressionFactory();
>>>>>>>>>>>>> ValueExpression ve = ef.createValueExpression("", Object.class);
>>>>>>>>>>>>> out.println(ve.isLiteralText());
>>>>>>>>>>>>>
>>>>>>>>>>>>> out.println(ve.isReadOnly(FacesContext.getCurrentInstance().getELContext()));
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> </jsp:scriptlet>
>>>>>>>>>>>>> </jsp:root>
>>>>>>>>>>>>>
>>>>>>>>>>>>> --
>>>>>>>>>>>>> Matthias Wessendorf
>>>>>>>>>>>>>
>>>>>>>>>>>>> further stuff:
>>>>>>>>>>>>> blog: http://matthiaswessendorf.wordpress.com/
>>>>>>>>>>>>> sessions: http://www.slideshare.net/mwessendorf
>>>>>>>>>>>>> mail: matzew-at-apache-dot-org
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
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>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>> ---------------------------------------------------------------------
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>>>>>>>>>> For additional commands, e-mail: dev-help_at_javaserverfaces.dev.java.net
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>> --
>>>>>>>>> Matthias Wessendorf
>>>>>>>>>
>>>>>>>>> further stuff:
>>>>>>>>> blog: http://matthiaswessendorf.wordpress.com/
>>>>>>>>> sessions: http://www.slideshare.net/mwessendorf
>>>>>>>>> mail: matzew-at-apache-dot-org
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>> ---------------------------------------------------------------------
>>>>>>> To unsubscribe, e-mail: dev-unsubscribe_at_javaserverfaces.dev.java.net
>>>>>>> For additional commands, e-mail: dev-help_at_javaserverfaces.dev.java.net
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>> ---------------------------------------------------------------------
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>>>>> For additional commands, e-mail: dev-help_at_javaserverfaces.dev.java.net
>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>>
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>>>
>>>
>>
>> --
>>
>> Matthias Wessendorf
>>
>> further stuff:
>> blog: http://matthiaswessendorf.wordpress.com/
>> sessions: http://www.slideshare.net/mwessendorf
>> mail: matzew-at-apache-dot-org
>>
>>
>
>
>
>