XSD double binding to BigDecimal

I have

<xsd:element name="amount" type="xsd:double" minOccurs="0" maxOccurs="1"/>

in my xsd schema element.

But unfortunately I can't change that. Based on this document, I generate a class in Java with Apache CXF. How can I parse this, get generated value in BigDecimal.

Now I have

protected Double amount;

But I want something like this

protected BigDecimal amount;

But I cant change my xsd element with Double. I would also not like to do it globally, but only for selected fields. Is it possible?