2 Replies Latest reply on May 5, 2007 10:06 AM by vralev

    Seam validation problem with facelets source tag

    czhao07
    czhao07 May 5, 2007 8:48 AM

      Here is what I am trying to do:

      1. Create facelets source tag:

      In taglib:

       <tag>
 <tag-name>address</tag-name>
 <source>xhtml/address.xhtml</source>
 </tag>


      In address.xhtml: 
      <ui:composition ...>
 ...
 <s:decorate>
 <h:inputText
 value="#{address.street}"
 id="street"
 </h:inputText>
 </s:decorate>
 ...
</ui:composition>


      2. Now in my facelets that uses the tag: 

      
 ...
 <s:validateAll>
 ...
 <v:address address="mybean.billingAddress"/>
 ...
 </s:valiateAll>
 ...


      The facelets loads fine with the address source tag, and when I enter invalid data in fields from address.xhtml, submit the form and I get the proper validation error messages, so far so good. But if I enter the valid data and submit form, I got the following stack trace: 


      Caused by: java.lang.NullPointerException
 at org.jboss.seam.core.Expressions.getValidator(Expressions.java:198)
 at org.jboss.seam.core.Expressions.validate(Expressions.java:182)
 at org.jboss.seam.ui.ModelValidator.validate(ModelValidator.java:25)
 at javax.faces.component._ComponentUtils.callValidators(_ComponentUtils.java:157)
 at javax.faces.component.UIInput.validateValue(UIInput.java:312)
 at javax.faces.component.UIInput.validate(UIInput.java:353)
 at javax.faces.component.UIInput.processValidators(UIInput.java:183)
 at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:624)
 at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:624)
 at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:624)
 at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:624)
 at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:624)
 at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:624)
 at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:624)
 at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:624)
 at javax.faces.component.UIForm.processValidators(UIForm.java:70)
 at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:624)
 at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:146)


      If I change the address.xhtml to use #{mybean.billingAddress} directly like this: 

      <ui:composition ...>
 ...
 <s:decorate>
 <h:inputText
 value="#{mybean.billingAddress.street}"
 id="street"
 </h:inputText>
 </s:decorate>
 ...
</ui:composition>


      Then the problem goes away, although this works, but it defeats the purpose of reusing the tag in several other places.

      Any idea?

      Thanks.

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