Does JaxB support inported schemas?

Question

hi i'm trying to compile the CD_DataBase.xsd schema (using the JaxB that I got from the JWSDP found at Sun's site) which references to an Album element in Album.xsd
For some reason, my xjc task falls when trying to read the imported schema.
here are the schemas':
Album.xsd
<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema targetNamespace="http://www.bll.co.il"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:jaxb="http://java.sun.com/xml/ns/jaxb"
xmlns:xjc="http://java.sun.com/xml/ns/jaxb/xjc"
jaxb:extensionBindingPrefixes="xjc"
jaxb:version="1.0"
elementFormDefault="qualified">
<xsd:annotation>
<xsd:appinfo>
<jaxb:globalBindings>
<xjc:serializable/>
</jaxb:globalBindings>
</xsd:appinfo>
</xsd:annotation>
<xsd:element name="album">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="description" type="xsd:string"/>
<xsd:element name="producer" type="xsd:string"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
</xsd:schema>
CD_DataBase.xsd
<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema targetNamespace="http://www.bll.com"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:jaxb="http://java.sun.com/xml/ns/jaxb"
xmlns:xjc="http://java.sun.com/xml/ns/jaxb/xjc"
xmlns:alb="http://www.bll.co.il"
xmlns:cd="http://www.bll.com"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
jaxb:extensionBindingPrefixes="xjc"
jaxb:version="1.0"
elementFormDefault="qualified">
<xsd:import namespace="http://www.bll.co.il" schemaLocation="Album.xsd"/>
<xsd:annotation>
<xsd:appinfo>
<jaxb:globalBindings>
<xjc:serializable/>
</jaxb:globalBindings>
</xsd:appinfo>
</xsd:annotation>
<xsd:element name="CD">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="artist" type="xsd:string"/>
<xsd:element ref="alb:album"/>
</xsd:sequence>
<xsd:attribute name="title" type="xsd:string" use="required"/>
</xsd:complexType>
</xsd:element>
</xsd:schema>
can any one help?
even if it works, will jaxb compile the referenced schema (album.xsd) to java classes every time i use it (in other schemas' that are using it)?
Thank's,
Regards,
Yair Ogen

Answer 1

Does any body know if I can configure Jaxb so it won't
compile the imported schema every time I have a schema
that uses it?It would be nice to be able to do this but I haven't seen how. You can't have two schemas that both import another common schema and have them both share the base schema types. One way I have gotten around this is to make a single common document with all the types we use but I'm not very happy with that.
The other way is to first generate the types for album.xsd and then add lines to album.xsd telling it to use those types instead of generating them each time. It solves your issue but is less than perfect, I'll admit.