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https://issues.apache.org/jira/browse/MYFACES-3611?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13458827#comment-13458827
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Mike Kienenberger commented on MYFACES-3611:
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You might also be able to return null in controles.getTextComponent() and
accomplish the same thing. My guess is that you only want a reference to the
component, and you are not trying to create a new component.
public UIComponent getTextComponent() { return null; }
http://drewdev.blogspot.com/2009/01/jsf-component-binding-stinks.html
> Validator method fired N times for ajax action if there's a binding attribute
> -----------------------------------------------------------------------------
>
> Key: MYFACES-3611
> URL: https://issues.apache.org/jira/browse/MYFACES-3611
> Project: MyFaces Core
> Issue Type: Bug
> Components: General
> Affects Versions: 2.1.2
> Environment: Tomcat 7, windows
> Reporter: Ricard Moré
>
> There's a problem in the validation phase when you mix ajax action and a
> binding value in the same form. For example I have this simple form:
> <h:form id="form">
> <h:inputText id="text" value="#{controles.text}"
> validator="#{controles.validateText}"
> binding="#{controles.textComponent}"/>
> <br/><br/>
> <h:commandButton value="validate">
> <f:ajax event="click" render="text"
> listener="#{controles.clearText}" execute="@form" immediate="false"/>
> </h:commandButton>
> </h:form>
> And when validate button is clicked the validator method validateText is
> called twice the first time, 3 times for the second submit and one more time
> each time the ajax action is fired.
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