How to convert JAXB annotated class to Schema instance at runtime?

Question

I know about creating schemas at compile time (JAXB ) but how can i get this information at runtime .

Model class:

package pl.kkrzeminski;

import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;

@XmlRootElement
public class Model {
    @XmlElement(required = true)
    private String text;
}

How can i create at runtime instance of Schema based on JAXB metadata Model.java?

package pl.kkrzeminski;

import org.xml.sax.SAXException;

import javax.xml.transform.Source;
import javax.xml.transform.stream.StreamSource;
import javax.xml.validation.SchemaFactory;
import java.io.ByteArrayInputStream;
import java.io.IOException;

public class Main {
    public static void main(String[] args) throws SAXException, IOException {
        SchemaFactory sf = SchemaFactory.newInstance(javax.xml.XMLConstants.W3C_XML_SCHEMA_NS_URI);
        // TODO how can i create at runtime instance of Schema based on Model.java?
        javax.xml.validation.Schema schema = sf.newSchema(new Source[]{});
        schema.newValidator().validate(new StreamSource(new ByteArrayInputStream("<model><text>test</text></model>".getBytes())));
    }
}

Answer 1

Solution (nazgul-core-xmlbinding-spi-jaxb) found here: JAXB Validation Without Schema

replace:

toReturn.setSystemId("");

with:

toReturn.setSystemId(suggestedFileName);