从OSGI bundle数据源调用

Question

Following this tutorial http://netbeans.org/kb/docs/javaee/maven-osgiservice-cdi.html I have managed to create a simple OSGI bundle and a client web application. I placed a managed bean into the web application client. The managed been calls a interface placed into the OSGI bundle. I successfully compile the code. Now the interesting part is can I place a data into the OSGI bundle which can make queries to the database. This is the code that I placed into the OSGI bundle:

package com.test;

import javax.ejb.Remote;

/** include default packages for Beans */
import java.io.Serializable;
import javax.enterprise.context.SessionScoped;
   // or import javax.faces.bean.SessionScoped;
import javax.inject.Named;
/** include package for SHA-256 encryption */
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
/** include SQL Packages */
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import javax.sql.DataSource;
import javax.annotation.Resource;
   // or import javax.faces.bean.ManagedBean; 



@Remote
public interface SL_43Remote {

    @Resource(name="java:/Oracle")
    private DataSource ds;



}

Betbeans 7.1 shows error: "modifier private is not allowed" and "= expected". Maybe I'm missing some libraries or maybe OSGI bundles don't allow source code for working with databases. Any idea how to fix the problem?

Kind Regards. Peter

Answer 1

Private fields are not allowed on interfaces in Java.

This problem has nothing to do with OSGi, just the fundamentals of Java.