Overview of the new features of Java EE 7 and a presentation of the new WebSocket API

1. JAVA EE 7 The new features of
the Enterprise Edition

2. OUR AGENDA
• Overview of the new features
• JSF 2.2
• CDI 1.1, EJB 3.2, JPA 2.1
• Bean Validation 1.1
• JMS 2.0
• JSON-P, JAX-RS 2.0, Batch
• Example application using
WebSockets

3. JSF 2.2
renders HTML5
<h:inputText value="#{bean.value}" >
<f:passThroughAttribute name="placeholder"
value="Enter text" />
</h:inputText>
CDI ViewScope / Managed Beans deprecated
Faces Flow

4. CDI 1.1, EJB 3.2 & JPA 2.1
@Transactional-Annotation
But: Still no annotations for EJB Security
CDI: Priority ordering of Interceptors and Decorators
JPA: Stored Procedures and DB-Functions in JPQL

5. METHOD LEVEL VALIDATION
Part of Bean Validation 1.1
@NotNull
public MyObject createMyObject(
@Size(min=5, max=40) String name,
@DecimalMin(value="1.00") Double value,
@Pattern(regexp="d{8}") String code) {...
RuntimeException if validation fails

6. JMS 2.0
@Inject
@JMSConnectionFactory("jms/connection
Factory")
private JMSContext context;
@Resource(mappedName =
"jms/inboundQueue")
private Queue inboundQueue;
public void sendMessage(String payload)
{
context.send(inboundQueue,
payload);

7. MORE STUFF
Java API for JSON Processing (JSR 353)
 Standard for parsing / transforming JSON
 similar to Jackson, GSON
Batch Applications (JSR 352)
 Standard for batch processing
JAX-RS 2.0
 finally a REST-Client

8. JAVA API FOR WEBSOCKETS
 Standard for fast low-level communication
 Specified in JSR 356
 Bidirectional communication between two endpoints (no
client/server)
 Sessions with unique IDs
 Directly over TCP (could use SSL/TLS), No HTTP, no Overhead
 Initial Handshake via HTTP Upgrade
 Asynchronous (returns Future) and synchronous API
 Transfers text or binary, Java objects must be de/encoded

9. LET‘S SEE...

10. WE ARE HIRING
We are looking for Frontend and Backend Developers for
our office in Taipei.
Salary is above average.
ExtJS or Java/Spring sounds fun?
Working for the banking industry sounds interesting?

11. QUESTIONS?
Please ask and don‘t hesitate to contact me
Name: Marcus Schiesser
Blog: www.marcusschiesser.de
Email: marcus.schiesser@kosmossystems.com
Code: github.com/marcusschiesser/javaee7-websocket
More about the company: www.kosmos-banking.com/en