[
http://jira.codehaus.org/browse/JIBX-169?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_103097
]
Ingo Wilken commented on JIBX-169:
----------------------------------
I have the same problem, but I'm not restricted to marshalling.
Basically, I have a small 'control' file containing some metadata and a related
(possibly very large)
'data' file, both using the same element name. Most important, the control
file contains the path
to the data file.
<binding value-style="attribute">
<mapping name="foo" class="FooControl">
<value name="path" field="pathToData"/>
</mapping>
<mapping name="foo" class="FooData">
<!-- lots of stuff here -->
</mapping>
</binding>
A server application feeds control files to my program, and using the contained
path my program knows where to
find the real data. So when I read/write an XML file, I know exactly what
class to unmarshal to/marshal from, and
simply use two IBindingFactory instances to read and write both kind of files:
IBindingFactory controlFactory =
BindingDirectory.getFactory(FooControl.class);
IBindingFactory dataFactory = BindingDirectory.getFactory(FooData.class);
This works great with JiBX 1.0.2.
1.1.3 complains:
Error: Duplicate mapping name not allowed for unmarshalling; on mapping element
at (line 6, col 37, in binding.xml)
Error running binding compiler
org.jibx.runtime.JiBXException: Binding binding.xml is unusable because of
validation errors
at org.jibx.binding.Utility.loadBinding(Utility.java:346)
at org.jibx.binding.Utility.loadFileBinding(Utility.java:413)
at org.jibx.binding.Compile.compile(Compile.java:296)
at org.jibx.binding.Compile.main(Compile.java:385)
1.1.5 fails with the NullPointerException from the original bug report.
> Binding compile of two classes with same element name fails with NPE in
> NameAttributes.equals although output only
> ------------------------------------------------------------------------------------------------------------------
>
> Key: JIBX-169
> URL: http://jira.codehaus.org/browse/JIBX-169
> Project: JiBX
> Issue Type: Bug
> Components: core
> Affects Versions: JiBX 1.1.5
> Environment: Windows XP, Java 1.5.0_10
> Reporter: Andrew Harris
> Attachments: outboundBindIssue.zip
>
>
> Just tried upgrading to JIBX 1.1.5 from 1.0.1 and hit this problem.
> I have a binding that is direction="output" and I have three hibernate
> classes that map to the same element name.
> When I try to bind compile, there is an exception thrown because the equals
> method in NameAttributes, when the name is the same, resorts to the namespace
> to distinguish the two objects, but the namespace has not been set on either
> of them.
> [java] Error running binding compiler
> [java] java.lang.NullPointerException
> [java] at
> org.jibx.binding.model.NameAttributes.equals(NameAttributes.java:184)
> [java] at java.util.HashMap.eq(HashMap.java:299)
> [java] at java.util.HashMap.containsKey(HashMap.java:381)
> [java] at
> org.jibx.binding.model.DefinitionContext.addMappedName(DefinitionContext.java:551)
> [java] at
> org.jibx.binding.model.RegistrationVisitor.visit(RegistrationVisitor.java:183)
> [java] at
> org.jibx.binding.model.TreeContext.tourTree(TreeContext.java:171)
> [java] at
> org.jibx.binding.model.TreeContext.tourTree(TreeContext.java:232)
> [java] at
> org.jibx.binding.model.RegistrationVisitor.visitTree(RegistrationVisitor.java:96)
> [java] at
> org.jibx.binding.model.BindingElement.runValidation(BindingElement.java:755)
> [java] at
> org.jibx.binding.model.BindingElement.validateBinding(BindingElement.java:819)
> [java] at org.jibx.binding.Utility.validateBinding(Utility.java:228)
> [java] at org.jibx.binding.Utility.loadBinding(Utility.java:269)
> [java] at org.jibx.binding.Utility.loadFileBinding(Utility.java:413)
> [java] at org.jibx.binding.Compile.compile(Compile.java:296)
> [java] at org.jibx.binding.Compile.main(Compile.java:385)
> I understand that it is not possible to unmarshal an incoming element to one
> of multiple classes, since there is not enough information to figure out
> which class to instantiate. But it would be useful to be able to marshal
> multiple classes to the same element name.
> The attached code has a target outputIssue that causes the exception
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