adam bien's blog

With an additional Maven 3 dependency and three dependencies in total, you can integrate Vaadin 7 with your Java EE 6/7 backend in an efficient way. No XML configuration or any other configuration is needed.

With the cdi-integration you can not only inject EJBs and CDI managed beans directly to the UIs and views, but also expose the view with a single annotation:

import com.vaadin.cdi.CDIUI;
import com.vaadin.server.VaadinRequest;
import com.vaadin.ui.HorizontalLayout;
import com.vaadin.ui.Label;
import com.vaadin.ui.UI;
import javax.inject.Inject;

@CDIUI
public class WelcomePage extends UI {

    @Inject
    ReceptionService service;


    @Override
    protected void init(VaadinRequest request) {
        setSizeFull();
        String message = service.welcome();
        Label label = new Label(message);
        setContent(new HorizontalLayout(label));
    }
}

@Stateless
public class ReceptionService {

    public String welcome() {
        return "Hello, Developer! No XML, No Configuration, and it works!";
    }
}

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.airhacks</groupId>
    <artifactId>vaadin-with-javaee-pom</artifactId>
    <version>1.0-SNAPSHOT</version>
    <url>http://airhacks.com</url>
    <packaging>war</packaging>
    <name>vaadin-with-javaee-pom</name>
    <dependencies>
        <dependency>
            <groupId>javax</groupId>
            <artifactId>javaee-web-api</artifactId>
            <version>6.0</version>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>com.vaadin</groupId>
            <artifactId>vaadin-cdi</artifactId>
            <version>1.0.0.alpha1</version>
        </dependency>     
        <dependency>
            <groupId>com.vaadin</groupId>
            <artifactId>vaadin-themes</artifactId>
            <version>7.0.4</version>
        </dependency>
        <dependency>
            <groupId>com.vaadin</groupId>
            <artifactId>vaadin-client-compiled</artifactId>
            <version>7.0.4</version>
        </dependency>           

    </dependencies>
    <build>
        <plugins>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.1</version>
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                </configuration>
            </plugin>
            <plugin>
                <artifactId>maven-war-plugin</artifactId>
                <version>2.3</version>
                <configuration>
                    <failOnMissingWebXml>false</failOnMissingWebXml>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

A deployable Java EE project was pushed into https://github.com/AdamBien/vaadin-with-javaee-pom/

See you at Java EE Workshops at MUC Airport (particularly at JavaEE UI workshop)!