Outputing value from backing bean which is an array directly:

Question

Assuming in my backing bean:

 String x []= ....
 public String [] getOutput { return this.x;}

 public String getOutputAsString(){ return Arrays.asString(x);}

then in the output page we get the output :

#{ myBackingbean.outputAsString }

My question is how to eliminate that getOutputAsString() and outputting directly in the ouput page :

I could do just

#{ myBackingbean.output[0])

but for a looping example ?? Imagine something like

for ( i to #{myBackingbean.ouput.length; ){
       #{myBackingbean.ouput [i]; }
    }

How to do that?

Thanks

score 2 · Accepted Answer · edited May 23 '17 at 11:58

2

Just use a tag or component which can iterate over an array. In standard JSF, that are <c:forEach>, <ui:repeat> and <h:dataTable>.

The <c:forEach> runs during view build time and produces JSF components.

<c:forEach items="#{bean.array}" var="item">
    #{item}
</c:forEach>

The <ui:repeat> runs during view render time and produces no markup.

<ui:repeat value="#{bean.array}" var="item">
    #{item}
</ui:repeat>

The <h:dataTable> runs during view render time and produces a HTML <table>.

<h:dataTable value="#{bean.array}" var="item">
    <h:column>#{item}</h:column>
</h:dataTable>

edited May 23 '17 at 11:58

Community

answered Jul 01 '15 at 10:24

BalusC

and I read on " the link you provided" , I assume that what you mean by `produces JSF components.` is that `` producing `` by default (even if we don't embed directly to the `#{item}`) right?? – Plain_Dude_Sleeping_Alone Jul 01 '15 at 18:06
You're welcome. No, it will in the given example produce an `UIInstructions` component. – BalusC Jul 01 '15 at 20:55

1 Answers1