This ultra-quick blog entry shows how to use the JSF runtime to access metadata for a composite component. Note that most of the metadata is optional when creating a composite component, therefore, this entry will be of interest to tool vendors and those wishing to write composite components that stand a chance of showing up nicely in tools.

The Using Page

When showing a composite component demo, I always like to start out with the using page.

Listing 1: the using page

  1. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  7. <h:head>
  8.   <title>A Simple JavaServer Faces 2.0 View</title>
  9. <style type="text/css">
  10. .grayBox { padding: 8px; margin: 10px 0; border: 1px solid #CCC; background-color: #f9f9f9;  }
  12.  
  13. </h:head>
  14. <h:body>
  15.   <h:form>
  16.  
  17.     <p>Composite Component usage:</p>
  18.  
  19. <div id="cc"class="grayBox" style="border: 1px solid #090;">
  20. <my:myComponent loginAction="#{userBean.loginAction}" />
  21. </div>
  22.  
  23. <h2>Metada for This Composite Component</h2>
  24.  
  25. <div id="foo" class="grayBox" style="border: 1px solid #090;">
  26.     <pre>
  27.     <meta:printMetadata viewName="main.xhtml" libraryName="cc"
  28.                        resourceName="myComponent.xhtml"/>
  29.     </pre>
  30. </div>
  31.  
  32.  
  33.     <p><h:commandButtonvalue="submit" /></p>
  34.   </h:form>
  35. </h:body>
  36. </html>
  37.  

Line 5 declares the namespace

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