Newbie Question about services and modules

[Michael Szalay]

Hi all

I tried to build my first service, but its not found within the registration

I try to lookup it in the page:

 @Inject
    private QuizService quizService;

There is a Module class which should build my service:

package com.szalay.quiz.services;

import org.apache.tapestry.ioc.ServiceBinder;

/**
 *
 * @author michael
 */
public class QuizModule {

    /**
     *  this is called by tapestry at application startup
     *
     * @param binder
     */
    public void bind(ServiceBinder binder) {
        binder.bind(QuizService.class,
QuizServiceImpl.class).scope("singleton");
    }
}

QuizService:

package com.szalay.quiz.services;

import com.szalay.quiz.entity.Quiz;
import java.util.Collection;

/**
 *
 * @author michael
 */
public interface QuizService {

    public Collection<Quiz> getLatestQuiz(int number) throws Exception;

    public Integer getNumberOfQuizes() throws Exception;
}


QuizServiceImpl:

package com.szalay.quiz.services;

import com.szalay.quiz.entity.Quiz;
import java.util.Collection;

/**
 *
 * @author michael
 */
public class QuizServiceImpl implements QuizService {

    public Collection<Quiz> getLatestQuiz(int number) throws Exception {
        ...
    }

    public Integer getNumberOfQuizes() throws Exception {
        ...
    }

}


But this gets the error:

Caused by: java.lang.RuntimeException: No service implements the interface
com.szalay.quiz.services.QuizService.
        at
org.apache.tapestry.ioc.internal.RegistryImpl.getService(RegistryImpl.java:517)
        at
org.apache.tapestry.ioc.internal.ObjectLocatorImpl.getService(ObjectLocatorImpl.java:45)
        at
org.apache.tapestry.internal.services.ServiceInjectionProvider.provideInjection(ServiceInjectionProvider.java:40)


here is my web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"; xmlns:xsi="
http://www.w3.org/2001/XMLSchema-instance"; xsi:schemaLocation="
http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd";>

    <!-- tapestry stuff -->
    <context-param>
        <param-name>tapestry.app-package</param-name>
        <param-value>com.szalay.quiz</param-value>
    </context-param>
    <filter>
        <filter-name>app</filter-name>
        <filter-class>org.apache.tapestry.TapestryFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>app</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <!-- session timeout -->
    <session-config>
        <session-timeout>
            30
        </session-timeout>
    </session-config>

</web-app>



I have not idea about what is wrong. Anyone of you?

Regards

Michael