jsf - How to define the content of repeater inside composite through its interface? -


i have composite component ui:repeat , want define content of ui:repeat through interface of composite.

following code working in myfaces looks more hack since variable name varrepeat must known outside of composite , works if no other childrens provided should rendered somewhere else.

view

define content of ui:repeat

<comp:myrepeater value="#{of:createintegerarray(1,5)}">     <h:outputtext id="varcomp" value="#{varrepeat}"/> </comp:myrepeater>

composite myrepeater

<composite:attribute name="value" type="java.lang.object"/> <composite:implementation>     <ui:repeat var="varrepeat" value="#{cc.attrs.value}">         <composite:insertchildren/>     </ui:repeat> </composite:implementation>

that's best can given var attribute doesn't support el. make clear enduser, document name of var in <cc:interface shortdescription> and/or <cc:attribute shortdescription>.

<cc:interface>     <cc:attribute name="value" type="java.util.collection"          shortdescription="a collection of items. each item exposed in el under variable name 'item'." /> <cc:interface> <cc:implementation>     <ui:repeat value="#{cc.attrs.value}" var="item">         <cc:insertchildren />     </ui:repeat> </cc:implementation>

usage:

<my:repeat value="#{bean.list}">     <h:outputtext value="#{item}" /> </my:repeat>

the omnifaces showcase application has similar composite long: <os:listdocs>:

<cc:implementation>     <c:set var="docs" value="#{page.current.documentation[cc.attrs.paths]}" />     <ui:fragment rendered="#{not empty docs}">         <h3>#{cc.attrs.header}</h3>         <ul>             <ui:repeat value="#{docs}" var="path">                 <li><a href="#{cc.attrs.url}"><code>#{cc.attrs.label}</code></a></li>             </ui:repeat>         </ul>     </ui:fragment> </cc:implementation>

usage:

<os:listdocs header="vdl" paths="vdl" url="#{_vdlurl}#{path}.html" label="#{fn:replace(path,'/', ':')}" /> <os:listdocs header="api" paths="api" url="#{_apiurl}#{path}.html" label="#{fn:replace(path,'/', '.')}" />  <os:listdocs header="source code" paths="api" url="#{_srcurl}#{path}.java" label="#{fn:replace(path,'/', '.')}" />

as design hint, if use sensible attribute name collection, var may become more self-documenting. e.g. ask items value , provide var="item".

<my:repeat items="#{[1,2,3,4,5]}">     <h:outputtext value="#{item}"/> </my:repeat>

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