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Posted to users@myfaces.apache.org by Alan Gross <al...@gmx.ch> on 2008/05/20 23:19:02 UTC
Converter - Problem passing attributes
HI Forum
Environment info:
Tomcat6
Myfaces 1.2.2
Facelets 1.1.13
I'm tring to write a flexibel string converter. The goal is to have a
converter that provides the following functionality
- substring
- remove newlines
I would like to pass the parameters by attributes
- number of chars for substring
- number of newlines before truncating
I took the standard converter DateTimeConverter as an example. But for some
reason I don't get it to work.
I think the problem is that the "restoreState" method is never invoked here.
Also the "getAsObject" method is never invoked..? Don't know if necessary? I
tried to use server and client state saving method. Read it could have an
impact..?
Does anyone have experience with passing parameters to converters?
Any help is appreciated. Thank you!
Alan
Attached you find the following files:
- faces-config.xml
- web.xml
- OutputTextConverter.java
http://www.nabble.com/file/p17351134/OutputTextConverter.java
OutputTextConverter.java
http://www.nabble.com/file/p17351134/faces-config.xml faces-config.xml
http://www.nabble.com/file/p17351134/web.xml web.xml
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Re: Converter - Problem passing attributes
Posted by Alan Gross <al...@gmx.ch>.
Hi sbalac
I will give your approach a try, but I don't think this will work since the
parameters are passed on a form submit.. i think..
In my case the parameters should be passed to the converter while rendering
the page?!
Please take a look to the standard DateTimeConverter. This Converter is
accepting attributes. Also it is possible to define attributes and
properties in Eclipse faces-config.xml Editor for converters?!
Here is an example of usage of the DateTimeConverter:
<h:outputText value="#{project.creationDate}">
<f:convertDateTime type="date" dateStyle="some style"/>
</h:outputText>
Source:
http://jsf.iatp.org.ua/converters/jsf_datetimeconverter.html
http://jsf.iatp.org.ua/converters/jsf_datetimeconverter.html
While copying the example I recognized the first time, that in that case the
tag is different!!
<f:convertDateTime>
How has this been done?
Thank you for your help!
sbalac wrote:
>
> Hi Alan,
> I'n not an expert by any means, but I have not come across <f:converter>
> tag that allows anything other than the id. I think if you want to pass
> parameters, you couls try something along the lines of :
> <f:converter converterId="GwOutTextConverter">
> <f:param id="substring" value="5" />
> </f:converter>
>
> Then in your converter you can access the parameters from the Request
> Parameter map which you can get a hold of from the faces context.
> Hope that helps
>
>
> Alan Gross wrote:
>>
>> HI Forum
>>
>> Environment info:
>> Tomcat6
>> Myfaces 1.2.2
>> Facelets 1.1.13
>>
>> I'm tring to write a flexibel string converter. The goal is to have a
>> converter that provides the following functionality
>> - substring
>> - remove newlines
>>
>> I would like to pass the parameters by attributes
>> - number of chars for substring
>> - number of newlines before truncating
>>
>> I took the standard converter DateTimeConverter as an example. But for
>> some reason I don't get it to work.
>>
>> I think the problem is that the "restoreState" method is never invoked
>> here. Also the "getAsObject" method is never invoked..? Don't know if
>> necessary? I tried to use server and client state saving method. Read it
>> could have an impact..?
>>
>> Does anyone have experience with passing parameters to converters?
>>
>> Any help is appreciated. Thank you!
>> Alan
>>
>> Attached you find the following files:
>> - faces-config.xml
>> - web.xml
>> - OutputTextConverter.java
>> http://www.nabble.com/file/p17351134/OutputTextConverter.java
>> OutputTextConverter.java
>> http://www.nabble.com/file/p17351134/faces-config.xml faces-config.xml
>> http://www.nabble.com/file/p17351134/web.xml web.xml
>>
>> Here is an extract of the page:
>> <h:outputText value="#{newsVar.description}" escape="false">
>> <f:converter converterId="GwOutTextConverter" substring="5"
>> maxNewLine="3" test="123"/>
>> </h:outputText>
>>
>>
>>
>
>
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Re: Converter - Problem passing attributes
Posted by sbalac <sh...@gmail.com>.
Hi Alan,
I'n not an expert by any means, but I have not come across <f:converter> tag
that allows anything other than the id. I think if you want to pass
parameters, you couls try something along the lines of :
<f:converter converterId="GwOutTextConverter">
<f:param id="substring" value="5" />
</f:converter>
Then in your converter you can access the parameters from the Request
Parameter map which you can get a hold of from the faces context.
Hope that helps
Alan Gross wrote:
>
> HI Forum
>
> Environment info:
> Tomcat6
> Myfaces 1.2.2
> Facelets 1.1.13
>
> I'm tring to write a flexibel string converter. The goal is to have a
> converter that provides the following functionality
> - substring
> - remove newlines
>
> I would like to pass the parameters by attributes
> - number of chars for substring
> - number of newlines before truncating
>
> I took the standard converter DateTimeConverter as an example. But for
> some reason I don't get it to work.
>
> I think the problem is that the "restoreState" method is never invoked
> here. Also the "getAsObject" method is never invoked..? Don't know if
> necessary? I tried to use server and client state saving method. Read it
> could have an impact..?
>
> Does anyone have experience with passing parameters to converters?
>
> Any help is appreciated. Thank you!
> Alan
>
> Attached you find the following files:
> - faces-config.xml
> - web.xml
> - OutputTextConverter.java
> http://www.nabble.com/file/p17351134/OutputTextConverter.java
> OutputTextConverter.java
> http://www.nabble.com/file/p17351134/faces-config.xml faces-config.xml
> http://www.nabble.com/file/p17351134/web.xml web.xml
>
> Here is an extract of the page:
> <h:outputText value="#{newsVar.description}" escape="false">
> <f:converter converterId="GwOutTextConverter" substring="5" maxNewLine="3"
> test="123"/>
> </h:outputText>
>
>
>
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Re: Converter - Problem passing attributes
Posted by Alan Gross <al...@gmx.ch>.
Problem solved. It is easy and it is working!! :jumping:
For infos take a look here:
http://www.lunatech-research.com/archives/2007/06/13/facelets-date-converter
http://www.lunatech-research.com/archives/2007/06/13/facelets-date-converter
Alan Gross wrote:
>
> HI Forum
>
> Environment info:
> Tomcat6
> Myfaces 1.2.2
> Facelets 1.1.13
>
> I'm tring to write a flexibel string converter. The goal is to have a
> converter that provides the following functionality
> - substring
> - remove newlines
>
> I would like to pass the parameters by attributes
> - number of chars for substring
> - number of newlines before truncating
>
> I took the standard converter DateTimeConverter as an example. But for
> some reason I don't get it to work.
>
> I think the problem is that the "restoreState" method is never invoked
> here. Also the "getAsObject" method is never invoked..? Don't know if
> necessary? I tried to use server and client state saving method. Read it
> could have an impact..?
>
> Does anyone have experience with passing parameters to converters?
>
> Any help is appreciated. Thank you!
> Alan
>
> Attached you find the following files:
> - faces-config.xml
> - web.xml
> - OutputTextConverter.java
> http://www.nabble.com/file/p17351134/OutputTextConverter.java
> OutputTextConverter.java
> http://www.nabble.com/file/p17351134/faces-config.xml faces-config.xml
> http://www.nabble.com/file/p17351134/web.xml web.xml
>
> Here is an extract of the page:
> <h:outputText value="#{newsVar.description}" escape="false">
> <f:converter converterId="GwOutTextConverter" substring="5" maxNewLine="3"
> test="123"/>
> </h:outputText>
>
>
>
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Sent from the MyFaces - Users mailing list archive at Nabble.com.