Grab JSPX user input directly from a trinidad UIXComponent in my Java code? - user-input

Question

I would like to retrieve the user input from a component within my Java code. Something akin to textbox.text in aspx/.NET. I am finding the documentation very confusing and my attempts don't compile. Is there a way?
<tr:inputDate id="date" required="true"
inlineStyle="color:rgb(0,58,117); font-weight:bold;"
value="#{processScope.benefit.serviceDate}"
immediate="false"
onchange="submit();"
label="#{mb_ResourceBean.res['claim.serviceDate.label']}">
<tr:convertDateTime pattern="yyyy/MM/dd" secondaryPattern="yyyyMMdd"
type="date"/>
<tr:validateDateTimeRange minimum="#{bk_ClaimBean.minDate}"
maximum="#{bk_ClaimBean.maxDate}"/>
</tr:inputDate>
Poor half-attempt to grab input:
UIViewRoot viewRoot = FacesContext.getCurrentInstance().getViewRoot();
UIXComponent component = viewRoot.findComponent("date"); //does not compile

Answer 1

I'm not sure what you are trying to achieve, but since you already have a value binding (#{processScope.benefit.serviceDate}) and you have onchange="submit();" in your <tr:inputDate> it looks like you want to use a valueChangeListener.
You need a method to handle the value change event in your bean, for example:
public void dateChanged(ValueChangeEvent event)
{
System.out.println("New value: "+ event.getNewValue());
System.out.println("instanceof Date: "+ (event.getNewValue() instanceof Date));
}
In your jspx you have to add the listener. Also you might want to use autoSubmit="true" instead of onchange="submit();", for example:
<tr:inputDate value="#{myBean.myDate}"
valueChangeListener="#{myBean.dateChanged}"
immediate="true" autoSubmit="true"/>
The code in your question does not compile since viewRoot.findComponent() will return a UIComponent. You need to cast it to UIXComponent.
Also, you need to take the naming containers into account. You will need to use something like: viewRoot.findComponent("formId:date");. In this case formId is the id of your <tr:form>.