Hi Dennis,
Thank you very much for taking the time to respond. I studied the example
that you pointed out, and I finally found the mistake in my mapping! I knew
it had to be something small and silly. Turns out that it was. I simply
forgot the namespace attribute in my mapping. It should be like this:
<mapping ns="http://www.gmail.com/my"; name="myHeader"
class="com.my.Header"
extends="org.standard.Header">
<structure map-as="Header"/>
<value name="employeeId" field="employeeId" ns="http://www.gmail.com/my";
/>
</mapping>
I have done some testing, and it finally looks like it's working!
I have a follow up question though. I haven't seen any examples combining
schema group substitution with a collection. Using your example, I need to
have a List<Dvd>, which means it can contain BluRayDvd or HdDvd objects.
What is the syntax for this? I tried a few things but keep getting binding
errors.
Thanks,
Polly
On Feb 4, 2008 1:10 AM, Dennis Sosnoski <[EMAIL PROTECTED]> wrote:
> Hi Polly,
>
> The differences between the different types of <mapping>s, when you use
> an abstract vs. concrete, and when you reference using a type name vs. a
> class name, can all be confusing issues. The tutorial has some
> discussion of this at
> http://jibx.sourceforge.net/tutorial/binding-mappings.html but some
> parts are not as clear as they could be because new features were added
> over time and I was too lazy (or busy, if you want to be charitable) to
> rewrite the tutorial.
>
> The Jibx2Wsdl code
> (http://www.sosnoski.com/jibx-wiki/space/axis2-jibx/jibx2wsdl) has an
> example (example4) which includes multiple layers of substitution
> groups. The inheritance structure uses both interfaces and subclassing,
> with a base Item interface thats implemented by Book and Dvd, an IDvd
> interface that extends Item and is implemented by another Dvd class, and
> several subclasses of the latter Dvd class. Here's part of the binding
> generated for this:
>
> <mapping abstract="true"
> extends="com.sosnoski.ws.library.jibx2wsdl.Item"
> class="com.sosnoski.ws.library.jibx2wsdl.hd.IDvd" name="IDvd">
> <structure map-as="tns:IDvd"/>
> </mapping>
> <mapping abstract="true" type-name="tns:dvd1"
> class="com.sosnoski.ws.library.jibx2wsdl.hd.Dvd">
> <structure map-as="tns:IDvd"/>
> </mapping>
> <mapping abstract="true"
> extends="com.sosnoski.ws.library.jibx2wsdl.hd.IDvd"
> class="com.sosnoski.ws.library.jibx2wsdl.hd.Dvd" name="dvd1">
> <structure map-as="tns:dvd1"/>
> </mapping>
> <mapping extends="com.sosnoski.ws.library.jibx2wsdl.hd.Dvd"
> class="com.sosnoski.ws.library.jibx2wsdl.hd.HdDvd" name="hdDvd">
> <structure map-as="tns:dvd1"/>
> <value style="element" name="studio" get-method="getStudio"
> set-method="setStudio" usage="optional"/>
> </mapping>
> <mapping extends="com.sosnoski.ws.library.jibx2wsdl.hd.Dvd"
> class="com.sosnoski.ws.library.jibx2wsdl.hd.BluRayDvd" name="bluRayDvd">
> <structure map-as="tns:dvd1"/>
> <value style="attribute" name="releaseYear"
> get-method="getReleaseYear" set-method="setReleaseYear"/>
> </mapping>
> <mapping extends="com.sosnoski.ws.library.jibx2wsdl.hd.Dvd"
> class="com.sosnoski.ws.library.jibx2wsdl.hd.Dvd$FutureDvd"
> name="dvdFutureDvd">
> <structure map-as="tns:dvd1"/>
> <value style="element" name="format" get-method="getFormat"
> set-method="setFormat" usage="optional"/>
> </mapping>
>
> The substitution group structure is shown by the <mapping>s with names
> which extend other <mapping>s. So in this case, the mappings for
> <hdDvd>, <bluRayDvd>, and <hdDvd> all extend the mapping for the
> com.sosnoski.ws.library.jibx2wsdl.hd.Dvd base class, and that base class
> <mapping> in turn extends the <mapping> for the IDvd interface, which in
> turn extends the <mapping> for the Item interface.
>
> That's how the substitution group handling works - you have a <mapping>
> for each element in the substitution group to some class, and that
> <mapping> extends the class corresponding to the head of the
> substitution group. If there are multiple layers in the substitution you
> just use multiple layers in the <mapping> extensions.
>
> But when you do this you can't just invoke the base class <mapping>
> using a <structure map-as='base-class"/>, because that would create a
> new child element. So it's often convenient to have abstract mappings
> with a type-name but no element name in parallel to the mappings with
> names used by the substitution group structure. In the sample above, the
> second mapping definition is of this type. The type-name for this
> mapping is then referenced inside the other mappings to handle the XML
> structure matching the base complexType.
>
> Hmmm. That still sounds confusing when I read over what I've written,
> but hopefully it'll give you a start in the right direction. Feel free
> to ask for clarification if needed.
>
> - Dennis
>
> Dennis M. Sosnoski
> SOA and Web Services in Java
> Training and Consulting
> http://www.sosnoski.com - http://www.sosnoski.co.nz
> Seattle, WA +1-425-939-0576 - Wellington, NZ +64-4-298-6117
>
>
>
> amphoras wrote:
> > Hi Joshua,
> >
> > Thank you so much for taking the time to help me with this. I have
> > spent countless hours on this until my eyes glazed over. ;)
> >
> > The problem with my object model is that it's deeply hierarchical and
> > nested, and unfortunately I can't really change it. That's why we are
> > using JiBX. We figured that it's the only tool that can handle our
> > crazy data structure. It works as advertised for us for everything
> > but the schema group substitution.
> >
> > Since I simplified my example earlier, I did not tell you that
> > actually SuperHeader has four more levels of superclasses above it,
> > and it has two subclasses, one of which is Header. In addition,
> > Container is contained by other objects as well. This is why I ended
> > up "double-declaring" these elements. So I tried to mimic your
> > example as best as I could, following the way that you double-declared
> > the "Header" example. I also noticed that sometimes you used "map-as"
> > with the classname and other times with the mapping type-name. I
> > think I read that they're supposed to be functionally equivalent, but
> > for some reason, I can only use the mapping type-name. Using the
> > classname causes all kinds of errors.
> >
> > Sadly, there's still something wrong. The error that I get is:
> >
> > junit.framework.AssertionFailedError: Element
> > "{http://www.gmail.com/my}Header <http://www.gmail.com/my%7DHeader>" has
> no mapping that extends
> > org.standard.Header
> > at junit.framework.Assert.fail(Assert.java:47)
> >
> > Normally, at this point I'll start to try different things. But after
> > having done that for hours before and not getting anywhere, I don't
> > think that I have a good enough understanding of JiBX to succeed that
> > way. So I'm hoping that you or someone else can see what I'm doing
> > wrong.
> >
> > Here's what I have:
> >
> > <binding>
> > <namespace uri="http://www.gmail.com/st"; default="elements"/>
> > <namespace uri="http://www.gmail.com/my"; default="none" prefix="my"/>
> >
> > <mapping type-name="SuperHeader" abstract="true"
> > class="org.standard.SuperHeader">
> > <structure map-as="SuperSuperHeader"/>
> > </mapping>
> >
> > <mapping name="SuperHeader"
> > class="org.standard.SuperHeader"
> > extends="org.standard.SuperSuperHeader">
> > <structure map-as="SuperHeader"/>
> > <value name="companyId" field="companyId" />
> > </mapping>
> >
> >
> > <mapping type-name="Header" abstract="true"
> > class="org.standard.Header">
> > <structure map-as="Header"/>
> > </mapping>
> >
> > <mapping name="Header"
> > class="org.standard.Header"
> > extends="org.standard.SuperSuperHeader">
> > <structure map-as="Header"/>
> > <value name="branchId" field="branchId" />
> > </mapping>
> >
> >
> > <mapping name="myHeader"
> > class="com.my.Header"
> > extends="org.standard.Header">
> > <structure map-as="Header"/>
> > <value name="employeeId" field="employeeId" ns="
> http://www.gmail.com/my"; />
> > </mapping>
> >
> >
> > <mapping type-name="Container" abstract="true"
> > class="org.standard.Container">
> > <structure field="header"/>
> > </mapping>
> >
> > <mapping name="Container"
> > class="org.standard.Container">
> > <structure map-as="Container" />
> > </mapping>
> > </binding>
> >
> > Again, I really appreciate your time and any help that you or anybody
> > else can give me.
> >
> > Thanks!
> > --Polly
> >
>
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