Spring Framework - @Import Examples

@Configuration
@Import(DataConfig.class)
public class AppConfig {

    @Bean
    @Profile(PROFILE_SWING)
    public CustomerUi swingCustomerUi () {
        return new SwingCustomerUi();
    }

    @Bean
    @Profile(PROFILE_JAVA_FX)
    public CustomerUi javaFxCustomerUi () {
        return new JavaFxCustomerUi();
    }

    @Bean
    public CustomerService customerService () {
        return new CustomerService();
    }

    public static void main (String[] args) {

        AnnotationConfigApplicationContext context =
                            new AnnotationConfigApplicationContext();
        context.getEnvironment()
               .setActiveProfiles(PROFILE_SWING, DataConfig.PROFILE_LOCAL);
        context.register(AppConfig.class);
        context.refresh();

        CustomerUi bean = context.getBean(CustomerUi.class);
        bean.showUi();
    }

    public static final String PROFILE_SWING = "swing";
    public static final String PROFILE_JAVA_FX = "javafx";
}

import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Import;

@Configuration
@Import(DataSourceConfig.class)
public class AppConfig {

    @Bean
    Client clientBean() {
        return new Client();
    }

    public static void main(String[] args) {
        AnnotationConfigApplicationContext context =
                new AnnotationConfigApplicationContext(AppConfig.class);
        context.getBean(Client.class).showData();
    }
}

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class DataSourceConfig {
    @Bean
    DataSourceBean dataSourceBean() {
        return new DataSourceBean();
    }
}

class DataSourceBean {

    public String getData() {
        return "some app data";
    }
}

public class Client {
    @Autowired
    private DataSourceBean dataSourceBean;

    public void showData() {
        System.out.println(dataSourceBean.getData());
    }
}

@Configuration
@Import(DataConfig.class)
public class AppConfig {

    @Bean
    @Profile(PROFILE_SWING)
    public CustomerUi swingCustomerUi () {
        return new SwingCustomerUi();
    }

    @Bean
    @Profile(PROFILE_JAVA_FX)
    public CustomerUi javaFxCustomerUi () {
        return new JavaFxCustomerUi();
    }

    @Bean
    public CustomerService customerService () {
        return new CustomerService();
    }

    public static void main (String[] args) {

        AnnotationConfigApplicationContext context =
                            new AnnotationConfigApplicationContext();
        context.getEnvironment()
               .setActiveProfiles(PROFILE_SWING, DataConfig.PROFILE_LOCAL);
        context.register(AppConfig.class);
        context.refresh();

        CustomerUi bean = context.getBean(CustomerUi.class);
        bean.showUi();
    }

    public static final String PROFILE_SWING = "swing";
    public static final String PROFILE_JAVA_FX = "javafx";
}