[GeoNetwork-users] inherited elements in xml schema

Hi,

I know how to create new schema, but i have one XSD file that include
elements with inherited attributes. Only in this schema an error occurs. It
looks like this:

...
<xs:attributeGroup name="ObjectIdentification">
    <xs:attribute name="id" type="xs:ID"/>
    <xs:attribute name="uuid" type="xs:string"/>
  </xs:attributeGroup>

  <xs:complexType name="AbstractObject_Type" abstract="true">
    <xs:sequence/>
    <xs:attributeGroup ref="iso:ObjectIdentification"/>
  </xs:complexType>
...
...
...
<xs:complexType name="CI_Telephone_Type">
    <xs:complexContent>
      <xs:extension base="iso:AbstractObject_Type">
        <xs:sequence>
          <xs:element name="voice" type="iso:CharacterString_PropertyType"
minOccurs="0" maxOccurs="unbounded"/>
          <xs:element name="facsimile"
type="iso:CharacterString_PropertyType" minOccurs="0"
maxOccurs="unbounded"/>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
...

When I start geonetwork in tomcat log I get error:

2007-06-28 13:55:31 | Adding xml schema : naszeiso
2007-06-28 13:55:31 | Raised exception while starting appl handler. Skipped.
2007-06-28 13:55:31 | Handler : org.fao.geonet.Geonetwork
2007-06-28 13:55:31 | Exception : java.lang.IllegalArgumentException:
'ref' cannot be null in 'extension' : iso:AbstractObject_Type
2007-06-28 13:55:31 | Message : 'ref' cannot be null in 'extension' :
iso:AbstractObject_Type
2007-06-28 13:55:31 | Stack : java.lang.IllegalArgumentException:
'ref' cannot be null in 'extension' : iso:AbstractObject_Type
  at
org.fao.geonet.kernel.schema.ComplexContentEntry.handleExtension(ComplexContentEntry.java:134)
  at
org.fao.geonet.kernel.schema.ComplexContentEntry.handleChildren(ComplexContentEntry.java:99)
  at
org.fao.geonet.kernel.schema.ComplexContentEntry.<init>(ComplexContentEntry.java:61)
  at
org.fao.geonet.kernel.schema.ComplexContentEntry.<init>(ComplexContentEntry.java:53)
  at
org.fao.geonet.kernel.schema.ComplexTypeEntry.handleChildren(ComplexTypeEntry.java:146)
  at
org.fao.geonet.kernel.schema.ComplexTypeEntry.<init>(ComplexTypeEntry.java:69)
  at
org.fao.geonet.kernel.schema.SchemaLoader.buildComplexType(SchemaLoader.java:425)
  at
org.fao.geonet.kernel.schema.SchemaLoader.parseElements(SchemaLoader.java:354)
  at org.fao.geonet.kernel.schema.SchemaLoader.load(SchemaLoader.java:83)
  at org.fao.geonet.kernel.EditLib.addSchema(EditLib.java:85)
  at org.fao.geonet.kernel.DataManager.addSchema(DataManager.java:208)
  at org.fao.geonet.Geonetwork.start(Geonetwork.java:125)
  at jeeves.server.JeevesEngine.initAppHandler(JeevesEngine.java:413)
  at jeeves.server.JeevesEngine.init(JeevesEngine.java:136)
  at jeeves.server.sources.http.JeevesServlet.init(JeevesServlet.java:68)
  at javax.servlet.GenericServlet.init(GenericServlet.java:211)
  at
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1044)
  at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:876)
  at
org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4017)
  at
org.apache.catalina.core.StandardContext.start(StandardContext.java:4337)
  at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1083)
  at org.apache.catalina.core.StandardHost.start(StandardHost.java:789)
  at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1083)
  at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:478)
  at org.apache.catalina.core.StandardService.start(StandardService.java:480)
  at org.apache.catalina.core.StandardServer.start(StandardServer.java:2313)
  at org.apache.catalina.startup.Catalina.start(Catalina.java:556)
  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
  at java.lang.reflect.Method.invoke(Unknown Source)
  at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:287)
  at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:425)

Does GN 2.0.3 xsd parser operate with inherited elements ?? Maybe I need
newer version?? If I need one, is it enough to change some java libraries
and which ??

Please help :slight_smile:

Cheers,
Lukasz
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