Spring javax.validation annotation not caught in BindingResult

I am trying to add validation to my model objects (which double as my form backing beans) using javax.validation annotations.

My model looks like this:

public Class TestObject {
    private String myProp;
    private InnerObject innerObject;

    //getters and setters omitted
}

public Class InnerObject {
  private BigDecimal myValue;

  @NotNull
  public BigDecimal getMyValue();
}

In my controller I have the method call like this:

public View calculate(@ModelAttri开发者_如何学编程bute("testObject") @Valid TestObject testObject, BindingResult result)

I also have the <mvc:annotation-driven/> in my spring-servlet.xml file.

Everytime I run the form with a null value it tells me there are 0 binding result errors.

I am using Java 1.6 with Hibernate-Validator-4.2.0 and Validation-API-1.0.0 on my classpath.

Can anyone help me and let me know what I am doing wrong? Been playing around with this for a while and can't get it to work.

Thanks

You are not referencing your InnerObject class. Your controller is taking a TestObject, but the field "innerObject" of the class TestObject is of type String.

Ok, getting a little further with this. I noticed that I was still using a custom validator in my controller like this:

binder.setValidator(new CustomValidator());

So I removed it and then I added @Valid above the getter on my inner object like:

@Valid
public InnerObject getInnerObject();

Now I can see that there are binding errors in my code. I have a new problem though. I have @NotNull on a BigDecimal property and I get the following error

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is javax.validation.UnexpectedTypeException: No validator could be found for type: java.math.BigDecimal

From the documentation it looks like BigDecimal is supported. So not sure what is going on. Think I am getting closer though.

Ok to resolve the BigDecimal error I changed:

private BigDecimal myField;

to

private BigDecimal myFeild = BigDecimal.Zero;

It works properly now.

The only downside is that since these are my form backing objects a zero is displayed in the field initially instead of a blank.

I am not sure if there is any way around this?