Paul-
Try this: (Class1 is an abstract class, Class2 just extends class1,
Class3 extends class1 and adds new attribute)
<xsd:complexType name="class1">
<xsd:sequence>
<xsd:element name="attr1" type="xsd:string"/>
</xsd:sequence>
</xsd:complexType>
<xsd:element name= "class2" type="class1"/>
<xsd:complexType name= "class3">
<xsd:complexContent>
<xsd:extension base="class1">
<xsd:attribute name="attr2" type="xsd:string"/>
</xsd:extension>
</xsd:complexContent>
</xsd:complexType>
--- "Young, Paul" <[EMAIL PROTECTED]> wrote:
> Keith,
>
> Thanks for the quick reply.
>
> I took a stab at using xsd:extension as suggested, but so far haven't
> been
> able to create a valid schema incorporating xsd:extension into the
> existing
> schema I was trying to modify to reflect their inheritance relationship.
> Perhaps a look at what I initially had in mind for the two schemas would
> help.
>
> Schema1
> <xsd:element name="class1">
> <xsd:complexType>
> <xsd:sequence>
> <xsd:element ref="attribute1"/>
> <xsd:element ref="attribute2"/>
> </xsd:sequence>
> </xsd:complexType>
> <xsd:simpleType name="attribute1" type ="xsd:string"/>
> <xsd:simpleType name="attribute2" type ="xsd:string"/>
> </xsd:element>
>
>
> Schema2
> <xsd:element name="class2">
> <xsd:complexType>
> <xsd:sequence>
> <xsd:element ref="attribute1"/>
> <xsd:element ref="attribute2"/>
> <xsd:element ref="attribute3"/>
> </xsd:sequence>
> </xsd:complexType>
> <xsd:simpleType name="attribute1" type ="xsd:string"/>
> <xsd:simpleType name="attribute2" type ="xsd:string"/>
> <xsd:simpleType name="attribute3" type ="xsd:string"/>
> </xsd:element>
>
> Recognizing that Schema2 is an extension of Schema1, I want to redefine
> Schema2 to eliminate duplicate definition of attribute1 and attribute2
> (perhaps using <xsd:import> or <xsd:include>) in such a way that Castor
> generates the classes and their inheritance relationship as provided in
> my
> previous email. Any thoughts on how I might do this?
>
> Thanks again,
>
> Paul
>
> -----Original Message-----
> From: Keith Visco [mailto:[EMAIL PROTECTED]]
> Sent: Friday, January 18, 2002 12:25 PM
> To: [EMAIL PROTECTED]
> Subject: Re: [castor-dev] Establishing class inheritance using Castor
>
>
>
> Hi Paul,
>
> Since you are coming from a .mil domain I will do my duty to help :-)
>
> The easiest way to do it, is to switch (see castorbuilder.properties) to
> type-centric approach using t "type" as the value of the
> "org.exolab.castor.builder.javaclassmapping" property.
>
> Then you can use the following fragment:
>
> <xsd:complexType="class1">
> <xsd:attribute name="attribute1" type="xsd:string"/>
> <xsd:attribute name="attribute2" type="xsd:string"/>
> </xsd:complexType>
>
> <xsd:complexType name="class2">
> <xsd:complexContent>
> <xsd:extension base="class1">
> <xsd:attribute name="attribute3 type="xsd:string"/>
> </xsd:extension>
> </xsd:complexContent>
> </xsd:complexType>
>
>
> Now I just coded this up and haven't run it through the SourceGenerator,
> but it should work for you...
>
> --Keith
>
> "Young, Paul" wrote:
> >
> > How do you establish an inheritance relationship between generated
> classes
> > using Castor? For example, how would I define the XML Schemas such
> that
> > Castor Source Generation generates the following classes?
> >
> > public class Class1 {
> > java.lang.String attribute1
> > java.lang.String attribute 2
> >
> > public java.lang.String getAttribute1() {
> > return this._attribute1;
> > } //-- java.lang.String getAttribute1()
> >
> > public java.lang.String getAttribute2() {
> > return this._attribute2;
> > } //-- java.lang.String getAttribute2()
> >
> > public java.lang.String setAttribute1(_attribute1) {
> > this._attribute1 = _attribute1;
> > } //-- java.lang.String setAttribute1()
> >
> > public java.lang.String setAttribute2(_attribute2) {
> > this._attribute2 = _attribute2;
> > } //-- java.lang.String setAttribute2()
> > }//--Class1
> > ------------------------------------------------------------------
> >
> > public class Class2 extends Class1{
> > java.lang.String attribute3
> >
> > public java.lang.String getAttribute3() {
> > return this._attribute3;
> > } //-- java.lang.String getAttribute3()
> >
> > public java.lang.String setAttribute3(_attribute3) {
> > this._attribute3 = _attribute3;
> > } //-- java.lang.String setAttribute3()
> > }//--Class2
> >
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