Parameter Component

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This advanced component embeds a JavaServer Faces UIParameter component in a JavaServer Faces component.

There are two common uses:

• If you embed <f:param> inside <h:outputLink>, a Standard Hyperlink component, you can define a query parameter to be added to the URL. For example:

    <h:outputLink value="/mp3StreamerServlet">
  
       <f:param name="album" value="#{Page1.albumId.value}"/>
  
       <f:param name="track" value="#{Page1.trackId.value}"/>
  
    </h:outputLink>

  
   
  
• By embedding <f:param> inside <h:outputFormat>, a Standard Formatted Output component, you can specify substitution parameters for a java.text.Message object, as shown in the following example:

    <h:outputFormat value="You have {0} items in your shopping cart.">
  
       <f:param value="#{SessionBean1.cart.itemCount}"/>
  
    </h:outputFormat>

  • Note: This example is simplified. You normally get the message string from a resource bundle.
  
   
  

See Also

About Components

Common Component Properties