JAX-WS wsgen and collections of collections: wsgen broken?
- by ayang
I've been playing around with "bottom-up" JAX-WS and have come across something odd when running wsgen.
If I have a service class that does something like:
@WebService
public class Foo {
public ArrayList<Bar> getBarList(String baz) { ... }
}
then running wsgen gets me a FooService_schema1.xsd that has something like this:
<xs:complexType name="getBarListResponse">
<xs:sequence>
<xs:element name="return" type="tns:bar" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
</xs:complexType>
which seems reasonable.
However, if I want a collection of collections like:
public BarCollection getBarCollection(String baz) { ... } // BarCollection is just a container for an ArrayList<Bar>
then the generated schema ends up with stuff like:
<xs:complexType name="barCollection">
<xs:sequence/>
</xs:complexType>
<xs:complexType name="getBookCollectionsResponse">
<xs:sequence>
<xs:element name="return" type="tns:barCollection" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
</xs:complexType>
An empty sequence is not what I had in mind at all.
My original approach was to go with:
public ArrayList<ArrayList<Bar>> getBarLists(String baz) { ... }
but that ends up with a big chain of complexTypes that just wind up with an empty sequence at the end as well:
<xs:complexType name="getBarListsResponse">
<xs:sequence>
<xs:element name="return" type="tns:arrayList" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
</xs:complexType>
<xs:complexType name="arrayList">
<xs:complexContent>
<xs:extension base="tns:abstractList">
<xs:sequence/>
</xs:extension>
</xs:complexContent>
</xs:complexType>
<xs:complexType name="abstractList" abstract="true">
<xs:complexContent>
<xs:extension base="tns:abstractCollection">
<xs:sequence/>
</xs:extension>
</xs:complexContent>
</xs:complexType>
<xs:complexType name="abstractCollection" abstract="true">
<xs:sequence/>
</xs:complexType>
Am I missing something or is this a known hole in wsgen? JAXB?
Andy
