JSF composite attribute for defining a value

Question

Simple question I hope..I have my java class where a value is set to 3:

private static final Integer MAX_LANGUAGES = 3;

Could you give me an example how to make a composite attribute that will specify the maximum number of languages a user can select. It is now stored in the class but I would like it to be more flexible, because the class shouldnt depend on that number.

Sebastian Hoffmann · Accepted Answer · 2012-08-13T13:22:40.677

1

Are your talking about composite components?

If so, you can use the composite:attribute tag to add an attribute to your component.

E.g:

<composite:interface>
    <composite:attribute name="maxLanguages"/>
</composite:interface>

<composite:implementation>
    <h:outputFormat value="Maximum languages = {0}">
           <f:param value="#{cc.attrs.maxLanguages}"/>
    </h:outputFormat>
</composite:implementation>

You can also attach a real java model to it with the componentType attribute of composite:interface and access it properties with cc.propertyName

edited Aug 13 '12 at 13:22

answered Aug 13 '12 at 13:12

Sebastian Hoffmann

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Yes,composite components. If I do it like that the maxLanguages is a null value of course. How can I now pass a value of 3 in it? – Marko Ćilimković Aug 13 '12 at 13:20
Like you would pass an attribute to any other component: ``. Notice that there was a small error in the above snippet: Its `cc.attrs.maxLanguages` not ``cc.attr.maxLanguages`` – Sebastian Hoffmann Aug 13 '12 at 13:21
Yeah. I've seen it. Thanks :) – Marko Ćilimković Aug 13 '12 at 13:31

JSF composite attribute for defining a value

1 Answers1