XSD with restrictions and code generation

Question

I have many xsd files in the project and I am generaing classes sucessfully but I would also like to use generated classes to fill my runtime dictionary, how to do that ?

So in below xsd part there is restriction, that for example code can have A value.

<xs:complexContent>
         <xs:restriction base="xx-code:Code">
            <xs:sequence>
               <xs:element name="code" form="unqualified">
                  <xs:simpleType>
                     <xs:restriction base="xs:token">
                        <xs:enumeration value="A">
                           <xs:annotation>
                              <xs:appinfo>
                                 <Test>Test A</Test>
                              </xs:appinfo>
                           </xs:annotation>
                        </xs:enumeration>

After class generation it is only visible as javadoc of generated class:

         <restriction base="{http://www.w3.org/2001/XMLSchema}token">
 *               <enumeration value="A"/>
 *               <enumeration value="B"/>

I would like to have some enum generated so that I would use it to expose REST service for frontend application to tell what values are valid (to populate drowndown lists)

I am using this plugin for code generation:

 <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>jaxb2-maven-plugin</artifactId>
                <version>${jaxb2-maven-plugin.version}</version>
                <executions>
                    <execution>
                        <id>xjc</id>
                        <goals>
                            <goal>xjc</goal>
                        </goals>
                    </execution>
                </executions>
                <configuration>
                    <sources>
                        <source>src/main/resources/my.xsd</source>
                    </sources>
                    <outputDirectory>${basedir}/target/generated-sources/java</outputDirectory>
                    <clearOutputDir>false</clearOutputDir>
                </configuration>
            </plugin>