Re: [jibx-users] Issue with splitting binding files

Dennis Sosnoski Tue, 12 Apr 2005 16:22:39 -0700

That's an interesting idea, to search as resources in the classpath. I think it's too late to include this in 1.0, since I've frozen new features in order to stabilize for the release. Perhaps you can see a way to add this for a post-1.0 release. As a suggestion, the <include> target doesn't have to be relative to the including file - it's like hrefs in HTML, where if the target doesn't start with a protocol (such as http:, ftp:, etc.) or '/' it's relative to the origin page. Using a special custom protocol such as "res://somepackage.someclass" might be a good way of handling your needs. You'd need to make sure the protocol name didn't conflict with any standard ones, but that shouldn't be a big problem.

Incidentally, I did take care of detecting the situation you'd originally reported as giving a Runtime exception. It turned out to be a lot more complex than I'd originally anticipated, so kept me busy for most of the time I was conscious in the 30-hour transit time going Seattle->Los Angeles->Sydney->Wellington.

 - Dennis

Arnaud Lenfant wrote:

Thanks for the quick answer, Dennis.
<include> would help me, but as I understand it searches for locations
relative to the inclusing file.
When I have:
 Import somePackage.Type
 public class SomeObject {
   Type type;
 }
I have no idea of the location of somePackage relative to my class, I
just assume it is in the classpath.
Would it be possible to have <include> lookup for binding files as
resources ?
Regards,
Arnaud
Subject: Re: [jibx-users] Issue with splitting binding files
To: jibx-users@lists.sourceforge.net
Reply-To: jibx-users@lists.sourceforge.net
Hi Arnaud,
You should be able to do what you want by using <include>:
 <binding>
   <include path=3D"type-binding.xml"/>
   <include path=3D"status-binding.xml"/>
   <mapping name=3D"someObj" ...
I'm surprised that your binding:
<binding>
 <mapping name=3D"someObj" class=3D"SomeObject">
   <structure field=3D"status"/>
   <structure field=3D"type"/>
 </mapping>
</binding>=20
got as far as it did (into code generation). This should have been=
=20
rejected before the code generation phase because there was no mappin=
g=20
defined within this binding for the types of the fields.
 - Dennis
Arnaud Lenfant wrote:
Hello All,
I've written a little xdoclet to generate the binding files for my j=
ava
classes. I generate a xxx.binding.xml for every xxx.java.
But I'm not sure it's the right way to do things with  Jibx.
I have the following classes:
public class SomeObject {
Status=09status;
Type=09type;
}
public class Type{
String=09name;
}
public class Status{
String=09name;
}
Using the following binding works fine:
<?xml version=3D'1.0' encoding=3D'UTF-8'?>
<binding>
<mapping name=3D"status" class=3D"Status">
  <value name=3D"name" field=3D"name"/>
</mapping>
<mapping name=3D"type" class=3D"Type">
  <value name=3D"name" field=3D"name"/>
</mapping>
=20
<mapping name=3D"someObj" class=3D"SomeObject">
  <structure field=3D"status"/>
  <structure field=3D"type"/>
</mapping>
</binding>
But if I split the bindings and put the bindings for Type and Status=
in
different files I have the following errors:
With=20
<?xml version=3D'1.0' encoding=3D'UTF-8'?>
<binding>
<mapping name=3D"status" class=3D"Status">
  <value name=3D"name" field=3D"name"/>
</mapping>
</binding>
<?xml version=3D'1.0' encoding=3D'UTF-8'?>
<binding>=20
<mapping name=3D"someObj" class=3D"SomeObject">
  <structure field=3D"status"/>
 </mapping>
</binding>
The binding works allright but I have a runtime exception:
Exception in thread "main" java.lang.NullPointerException at java.net.URLClassLoader$1.run(URLClassLoader.java:190) at java.security.AccessController.doPrivileged(Native Method=
)

at java.net.URLClassLoader.findClass(URLClassLoader.java:187=

)

at java.lang.ClassLoader.loadClass(ClassLoader.java:289) at java.lang.ClassLoader.loadClass(ClassLoader.java:282) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:=

274)

at java.lang.ClassLoader.loadClass(ClassLoader.java:235) at org.jibx.runtime.impl.MarshallingContext.getMarshaller(MarshallingCo=

n

text.java:905) at Status.marshal(Status.java) at SomeObject.JiBX_conf_SomeObject_marshal_1_0(SomeObject.ja=

va)

at JiBX_conf_SomeObjectSomeObject_access.marshal() at SomeObject.marshal(SomeObject.java) at org.jibx.runtime.impl.MarshallingContext.marshalRoot(MarshallingCont=

e

xt.java:964) at org.jibx.runtime.impl.MarshallingContext.marshalDocument(Marshalling=

C
ontext.java:1056)
      at Run.main(Run.java:29)
Now if I try to include both type and status in my mapping:=20
<?xml version=3D'1.0' encoding=3D'UTF-8'?>
<binding>
<mapping name=3D"someObj" class=3D"SomeObject">
  <structure field=3D"status"/>
  <structure field=3D"type"/>
</mapping>
</binding>=20
I have a binding error:
Using bindings:
conf/SomeObject.jibx.xml
Running binding compiler version jibx-rc0
binding conf_SomeObject:
context (mp#=3D1) (cv#=3D0) (fm#=3D0)
mapping class SomeObject to element someObj
 element wrapper someObj
  object binding for SomeObject
   structure ordered
    mapping reference to Status using property status (Status)
    mapping reference to Type using property type (Type)
Generating code for mapping SomeObject
Error running binding compiler
*** Error during code generation - please report this error on the J=
iBX
users li
st so that the condition can be caught during validation ***
java.lang.IllegalStateException: Internal error: Too few values on s=
tack
full stack:
0: Type
at org.jibx.binding.classes.MethodBuilder.verifyStackDepth(MethodBuilde=
r

java:432) at org.jibx.binding.classes.MethodBuilder.verifyStack(MethodBuilder.jav=

a

:459) at org.jibx.binding.classes.MethodBuilder.appendPutField(MethodBuilder.=

j

ava:743) at org.jibx.binding.classes.MethodBuilder.appendPut(MethodBuilder.java:=

7

72) at org.jibx.binding.def.PropertyDefinition.genStore(PropertyDefinition.=

j

ava:520) at org.jibx.binding.def.DirectGeneric.genUnmarshal(DirectGeneric.java:1=

5

6) at org.jibx.binding.def.DirectGeneric.genContentUnmarshal(DirectGeneric=

java:230) at org.jibx.binding.def.PassThroughComponent.genContentUnmarshal(PassTh=

r

oughComponent.java:111) at org.jibx.binding.def.NestedStructure.genContentUnmarshal(NestedStruc=

t

ure.java:153) at org.jibx.binding.def.ObjectBinding.genUnmarshalContentCall(ObjectBin=

d

ing.java:736) at org.jibx.binding.def.ObjectBinding.genContentUnmarshal(ObjectBinding=

java:875) at org.jibx.binding.def.ElementWrapper.genContentUnmarshal(ElementWrapp=

e

r.java:272) at org.jibx.binding.def.MappingDefinition.generateCode(MappingDefinitio=

n

java:541) at org.jibx.binding.def.DefinitionContext.generateCode(DefinitionContex=

t

java:600) at org.jibx.binding.def.BindingDefinition.generateCode(BindingDefinitio=

n
java:578)
      at org.jibx.binding.Compile.compile(Compile.java:303)
      at org.jibx.binding.Compile.main(Compile.java:382)
So clearly I'm doing something wrong.
Is there a way to separate the binding files for different classes ?
In my case the Status and Type classes would be referenced by a lot =
of

different classes. What I'd like is a way to generate their mapping =

once
and have it used whenever it is needed.
Thanks for your help,
Arnaud Lenfant
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Re: [jibx-users] Issue with splitting binding files

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