I am using jaxb for my application configurations

I feel like I am doing something really crooked and I am looking for a way to not need an actual file or this transaction.

As you can see in code I:

1.create a schema into a file from my JaxbContext (from my class annotation actually) 2.set this schema file in order to allow true validation when I unmarshal

JAXBContext context = JAXBContext.newInstance(clazz);
Schema mySchema = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI).newSchema(schemaFile);
jaxbContext.generateSchema(new MySchemaOutputResolver()); // ultimately creates schemaFile   
Unmarshaller u = m_context.createUnmarshaller();
u.setSchema(mySchema);
u.unmarshal(...);

do any of you know how I can validate jaxb without needing to create a schema file that sits in my computer?

Do I need to create a schema for validation, it looks redundant when I get it by JaxbContect.generateSchema ?

How do you do this?