Christoph Hermann napisał(a):
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Hello,
is there a way in Cocoon to load a class on cocoon startup?
What i want to accomplish is like read some sort of configuration file
and then hold these values in memory while cocoon is running.
So i thought of building a xml file which is loaded through xmlbeans
into a static var or so. Thath way i wouldn't have to load the
configuration File on each request.
Can anyone give me some hints on how to accomplish this?
If you want your class to be loaded at startup you have to create
interface like:
package your.package;
import org.apache.avalon.framework.component.Component;
public interface YourNiceIterface extends Component {
String ROLE = PersistenceFactory.class.getName();
//some methods
}
and then class:
public class YourNiceClass implements YourNiceInterface, Configurable,
Serviceable, Initializable, Disposable, ThreadSafe {
//implement what you want
}
All these interfaces (excluding YourNiceInterface) are Avalon's
interfaces and they are to tell that you need initialization
(Initializable) of your component.
If you need some logging, then your class should derive from
AbstractLogEnabled. If you need more details about intefaces, just ask.
Then you have to put in cocon.xconf something like this:
<component class="your.package.YourNiceClass"
role="your.package.YourNiceInteface"/>
*BUT*, maybe you just need XMLFileModule[1]? ;-)
Or at least you should implement your own input module to easy obtain
your configuration.
[1]
http://cocoon.apache.org/2.1/apidocs/org/apache/cocoon/components/modules/input/XMLFileModule.html
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g[R]eK
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