extension, configue & hivemind

[Pierre Moermans <pi...@pm-soft.be>]

Hello list,

In my project (taupe), I would like my business objects to find the DAO
objects from a hivemind registry which is defined from an XML file.
To do this, I need a singleton (DAOServiceLocator) object that provides an
interface to the hivemind registry (if you have better ideas, please share !
:-)). This singleton, should be called a first time, when the application
starts, to set the registry (by setting the location of the XML file with the
method "setRegistry").


In the taupe.application, I've added:


<extension name="DAOServiceLocator"
class="be.pmsoft.taupe.utils.DAOServiceLocator" immediate="true">
    <configure property-name="registry">WEB-INF/service-dao.xml</configure>
</extension>


and in the DAOServiceLocator.java, I have the method:


public void setRegistry(String filename) {
    RegistryBuilder builder = new RegistryBuilder();
    builder.addModuleDescriptorProvider( new XmlModuleDescriptorProvider(new
DefaultClassResolver(), new FileResource(filename)));
    builder.addDefaultModuleDescriptorProvider();
    registry = builder.constructRegistry(Locale.getDefault());
}



but when I start tomcat, I have the following error:


org.apache.tapestry.util.xml.DocumentParseException: Unable to read
context:/WEB-INF/taupe.application: Class
be.pmsoft.taupe.utils.DAOServiceLocator does not contain a property named
'null'.
   location: context:/WEB-INF/taupe.application


Does anybody have an idea why it says 'null', and how to solve that ?


My config is:
tomcat 5.5
tapestry 4.0-beta3
Hivemind 1.1-beta1
JDK 1.5.0_03



Many thanks,

Pierre


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