How to set 1 field in anothers converter

Question

I have a converter on a field. I also have a field for an informational message. I either need to be able to set a FacesMessage in the backingBean method, or be able to blank out the informational message field in the converter.
Here is part of the JSP.
<h:outputText id="userMessage" value="#{allAuthUser.userMessage}" styleClass="errorMessage"/>
     <h:panelGrid columns="1" headerClass="tableHeader">
          <f:facet name="header">
               <h:outputText value="Auth User Application Orgs Table Maintenance"/>
          </f:facet>
          <f:verbatim> </f:verbatim>
          <f:subview id="filters">
               <h:panelGrid columns="9">
                    <h:outputText value="User Id:"/>
                    <h:inputText value="#{allAuthUser.userId}" size="10" maxlength="20"/>
                    <h:outputText value="App Id:"/>
                    <h:inputText id="appId" value="#{allAuthUser.appId}" size="3" maxlength="3">
                         <f:converter converterId="tblmaint.AppId"/>
                    </h:inputText>Here is part of the converter class.
public Object getAsObject(FacesContext context, UIComponent component,
              String newValue) throws ConverterException {
     if (StringUtils.isNullOrEmpty(newValue)) {
          return null;
     } else if (!ApplicationUtils.isInteger(newValue)) {
          // set userMessage = ""; - but how?
          FacesMessage message = new FacesMessage(ApplicationResources.getMessage(
                    "com.monsanto.ag_it.fieldops.error.integer"));
          message.setSeverity(FacesMessage.SEVERITY_ERROR);
          throw new ConverterException(message);
     } else {
          return new Integer(newValue);
}Here is the backingBean method:
public String refreshButton() {
     allAuthUserList = null;
     userMessage = ApplicationResources.getMessage(
               "com.monsanto.ag_it.fieldops.message.refresh");
     return "allAuthUser";
}So, how can I set an informational message in the refreshButton method,
or, how can I set the userMessage field to "" in the converter?
Thanks,
Ray

Answer 1

You can find the backing bean as follows:
conext.getApplication().getVariableResolver().resolveVariable(context, "allAuthUser")I don't like this solution because it hard-codes the name of the backing bean
and forces the page authors to use the name("allAuthUser").
Another solution is to use RequestMap for sharing the message between backing beans and converters.
For example, the converter put a new message as
context.getExternalContext().getRequestMap().put("userMessage", newMsg)And the backing bean get the new message from the RequestMap based on the key.
In the solution, the hard-coded key("userMessage") is only the contact between the backing bean and the converter, not with the page author.