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miercuri, 30 septembrie 2015

[OmniFaces utilities 2.0] Create a dummy object array of the given size


[OmniFaces utilities] The createArray() function creates and returns a dummy object array of the given size. This is useful if you want to iterate n times over an <ui:repeat>, which doesn't support EL in begin and end attributes.

Function:
Usage:

Below you can see a two simple examples of using the of:createArray() function:

// create a dummy array of size 5
<ui:repeat value="#{of:createArray(5)}" varStatus="loop">
 #{loop.index}#{!loop.last ? ', ' : ''}
</ui:repeat>

Output: Create a dummy array of size 5: 0, 1, 2, 3, 4

// create another dummy array of size 5
<table border="1">
 <tr>
  <td>Index</td>
  <td>First</td>
  <td>Last</td>
  <td>Begin</td>
  <td>End</td>
  <td>Step</td>
  <td>Current</td>
  <td>Even</td>
  <td>Odd</td>
 </tr>           
 <ui:repeat value="#{of:createArray(5)}" varStatus="vs">           
  <tr>
   <td> #{vs.index}</td>
   <td>#{vs.first}</td>
   <td>#{vs.last}</td>
   <td>#{vs.begin}</td>
   <td>#{vs.end}</td>
   <td>#{vs.step}</td>
   <td>#{vs.current}</td>
   <td>#{vs.even}</td>
   <td>#{vs.odd}</td>
  </tr>           
 </ui:repeat>
</table>

Output:

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