Re: [castor-dev] Problems With Source Code Generation

[Keith Visco]

Hi Paul,

The easiest approach is to use an XSLT stylesheet to dynamically modify
the Schema. Simply replace the Union with a string type and this will
allow you to get all the values of your union. You Java class will have
a string type, so you'll have to do your validation of the field to make
sure it's values are correct.

Support for union is definately on our list of planned features.

--Keith

----- Original Message -----
From: "Paul Chisholm" <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Sent: Tue, 2 Jul 2002 09:13:38 +1000
Subject: Re: [castor-dev] Problems With Source Code Generation


Thanks Scott, I will look into why my generation throws an exception.

On the issue of unsupported features. The system I am building
interfaces to another system via XML and the 
XML schema are dictated by the other system. I have no opportunity to
modify the schema to those 
supported by Castor. Is there is recommended approach when faced with
this problem.

Paul

     ----- Original Message ----- 
     From: Scott Venter
     To: [EMAIL PROTECTED]
     Sent: Tuesday, July 02, 2002 6:49 PM
     Subject: Re: [castor-dev] Problems With Source Code Generation

     Hi Paul,

     I am running version 0.9.3.19 and I have no trouble generating
classes from your first schema.  
     See attached .zip for classes generated from first schema. 

     With regards to your second schema you will notice that the stack
trace informs you that the 
     Data Type union is not yet supported. This is why your simple type
LevelOrVFR which contains 
     a union of memberTypes="Level VFR" is not created.

     [Stack Trace]
     -- Suppressing non fatal warnings.
     org.xml.sax.SAXException: 'union' elements are not yet supported.
        line: 21 at 
    
org.exolab.castor.xml.schema.reader.SaxUnmarshaller.error(SaxUnmarshaller.java:169)

     Kind regards
     Scott.

          ----- Original Message ----- 
          From: Paul Chisholm
          To: [EMAIL PROTECTED]
          Sent: Monday, July 01, 2002 11:56 PM
          Subject: [castor-dev] Problems With Source Code Generation

          Hi,

          I have a couple of problems with source code generation. Using
version 0.9.3.19.

          1 - The following schema throws an exception during source
generation. 

          Schema:

          <?xml version="1.0" encoding="UTF-8"?>
          <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"; 
          elementFormDefault="qualified"
attributeFormDefault="unqualified">
           <xs:complexType name="Field19">
            <xs:sequence>
             <xs:element name="c" minOccurs="0">
              <xs:simpleType>
               <xs:list itemType="EmergRadioEquip"/>
              </xs:simpleType>
             </xs:element>
            </xs:sequence>
           </xs:complexType>
           <xs:simpleType name="EmergRadioEquip">
            <xs:restriction base="xs:string">
             <xs:enumeration value="U"/>
             <xs:enumeration value="V"/>
             <xs:enumeration value="E"/>
            </xs:restriction>
           </xs:simpleType>
          </xs:schema>

          Exception:

          Exception in thread "main" java.lang.IllegalArgumentException:
'null' is n
                  at org.exolab.javasource.JClass.<init>(Unknown Source)
                  at
org.exolab.castor.builder.TypeConversion.convertType(Unknown So
                  at
org.exolab.castor.builder.MemberFactory.createFieldInfo(Unknown
                  at
org.exolab.castor.builder.SourceFactory.processContentModel(Unk
                  at
org.exolab.castor.builder.SourceFactory.processContentModel(Unk
                  at
org.exolab.castor.builder.SourceFactory.processComplexType(Unkn
                  at
org.exolab.castor.builder.SourceFactory.createSourceCode(Unknow
                  at
org.exolab.castor.builder.SourceGenerator.processComplexType(Un
                  at
org.exolab.castor.builder.SourceGenerator.createClasses(Unknown
                  at
org.exolab.castor.builder.SourceGenerator.generateSource(Unknow
                  at
org.exolab.castor.builder.SourceGenerator.generateSource(Unknow
                  at
org.exolab.castor.builder.SourceGenerator.generateSource(Unknow
                  at
org.exolab.castor.builder.SourceGenerator.main(Unknown Source)


          2 - The following schema generates classes for 'Test' and
'VFR' but not 'Level' and 
          'LevelOrVFR'. No error is reported during generation.
javaclassmapping=type.

          Compilation fails because class 'Test' has references to the
non-existent class 
          'LevelOrVFR'.

          <?xml version="1.0" encoding="UTF-8"?>
          <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"; 
          elementFormDefault="qualified"
attributeFormDefault="unqualified">
           <xs:complexType name="Test">
            <xs:sequence>
             <xs:element name="level" type="LevelOrVFR"/>
            </xs:sequence>
           </xs:complexType>
           <xs:simpleType name="Level">
            <xs:restriction base="xs:string">
             <xs:pattern value="(A|F)[0-9]{3}"/>
             <xs:pattern value="(S|M)[0-9]{4}"/>
            </xs:restriction>
           </xs:simpleType>
           <xs:simpleType name="VFR">
            <xs:restriction base="xs:string">
             <xs:enumeration value="VFR"/>
            </xs:restriction>
           </xs:simpleType>
           <xs:simpleType name="LevelOrVFR">
            <xs:union memberTypes="Level VFR"/>
           </xs:simpleType>
          </xs:schema>

          Thanks,
          Paul

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