actionparam converter

[ronanker]

is it planned to finish the dev of org.ajax4jsf.component.UIActionParameter ?
it contains the following TODO : "perform conversion if converter is present".

Because i need to use a 'converter' on an 'actionparam' and without hacking, it doesn't work...

I wanted to do (and I would like to do) :

<a4j:jsFunction name="_onModificationValeurImputation#{rowCategorie}"
 action="#{ressourcesHandler.onModificationValeurImputation}"
 reRender="#{ressourcesHandler.columnsToReRender}">
 <a4j:actionparam name="value" assignTo="#{ressourcesHandler.value}"
 converterId="#{ligneCategorie.categorie.converterId}" />
 <a4j:actionparam name="idProjet" assignTo="#{ressourcesHandler.idLigneProjetModifiee}" />
 <a4j:actionparam name="idPhase" assignTo="#{ressourcesHandler.paramId}" />
 <a4j:actionparam name="idColonne" assignTo="#{ressourcesHandler.idColonne}" />
 <a4j:actionparam name="columnsToReRender" assignTo="#{ressourcesHandler.columnsToReRender}"/>
</a4j:jsFunction>

but param 'converterId' doesn't exist...

so I tryed :

<a4j:jsFunction name="_onModificationValeurImputation#{rowCategorie}"
 action="#{ressourcesHandler.onModificationValeurImputation}"
 reRender="#{ressourcesHandler.columnsToReRender}">
 <a4j:actionparam name="value" assignTo="#{ressourcesHandler.value}" >
 <f:converter converterId="#{ligneCategorie.categorie.converterId}" />
 </a4j:actionparam>
 <a4j:actionparam name="idProjet" assignTo="#{ressourcesHandler.idLigneProjetModifiee}" />
 <a4j:actionparam name="idPhase" assignTo="#{ressourcesHandler.paramId}" />
 <a4j:actionparam name="idColonne" assignTo="#{ressourcesHandler.idColonne}" />
 <a4j:actionparam name="columnsToReRender" assignTo="#{ressourcesHandler.columnsToReRender}"/>
</a4j:jsFunction>

but 'f:converter' doesn't support 'a4j:actionparam '...

then I created my own converterFactory and did :

<a4j:jsFunction name="_onModificationValeurImputation#{rowCategorie}"
 action="#{ressourcesHandler.onModificationValeurImputation}"
 reRender="#{ressourcesHandler.columnsToReRender}">
 <a4j:actionparam name="value" assignTo="#{ressourcesHandler.value}"
 converter="#{converterFactoryHandler.converter[ligneCategorie.categorie.converterId]}" />
 <a4j:actionparam name="idProjet" assignTo="#{ressourcesHandler.idLigneProjetModifiee}" />
 <a4j:actionparam name="idPhase" assignTo="#{ressourcesHandler.paramId}" />
 <a4j:actionparam name="idColonne" assignTo="#{ressourcesHandler.idColonne}" />
 <a4j:actionparam name="columnsToReRender" assignTo="#{ressourcesHandler.columnsToReRender}"/>
</a4j:jsFunction>

(using Map interface to be able to give a param to the getter function)

it was still not-functionning so i went in the actionparam's code

And Finally I edited org.ajax4jsf.component.UIActionParameter to make it use the provided 'converter' param :-)

public Converter getConverter() {
 //HACK Begin
 if (null != _converter) {
 return _converter;
 }
 ValueExpression ve = getValueExpression("converter");
 if (ve != null) {
 _converter = (Converter)ve.getValue(getFacesContext().getELContext());
 }
 //HACK End
 return _converter;
}

now that works...
but i don't like overriding 3rd party packages like that...

thanks in advance for completing your code (as i did or in a better way)
is there a jira for this TODO ? (i didn't find it)

[nbelaevski]

Hello Ronan,

Works fine for me:

<a4j:actionparam name="username" assignTo="#{userBean.name}" value="12345" converter="javax.faces.Integer"/>

either as:

<a4j:actionparam name="username" value="12345" assignTo="#{userBean.name}" converter="#{userBean.converter}"/>

Tested with the latest 3.3.1-snapshot/Facelets. Are you using JSP?

P.S. I'm going to move this thread into users forum, looks like it is usage question...