Question

There are two major means of data binding initialization, but there is a drawback in the oldschool one, that I can’t figure out. This annotation way is great :

@InitBinder("order")
public void initBinder(WebDataBinder binder) {
    // Problem is that I want to set allowed and restricted fields - can be done here
    binder.setAllowedFields(allowedFields.split(","));
}

but I can’t be done with ConfigurableWebBindingInitializer. First off, the binder instance is created in AnnotationMethodHandlerAdapter and initializer is passed the binder instance somewhere in HandlerMethodInvoker so I can’t set it up… I can’t do something like this :

<bean id="codesResolver" class="org.springframework.validation.DefaultMessageCodesResolver" />
<bean id="binder" class="org.springframework.web.portlet.bind.PortletRequestDataBinder" scope="prototype">
    <property name="allowedFields" value="${allowedFields}" />
    <aop:scoped-proxy />
</bean>
<bean id="webBindingInitializer" class="org.springframework.web.bind.support.ConfigurableWebBindingInitializer">
    <property name="messageCodesResolver" ref="codesResolver" />
</bean>

Because binder instance is passed into it in handlerAdapter. How can I set up the binder then ?

Answer 1

There is no way of setting it up in xml configuration. You must implement your custom WebBindingInitializer … The ConfigurableWebBindingInitializer is obviously missing the possibility of setting up allowed and restricted fields…

Or you can vote up SPR-8601