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Java EE 7 - New Features and the WebSocket API
The document outlines the new features of Java EE 7 including JSF 2.2, CDI 1.1, EJB 3.2, JPA 2.1, Bean Validation 1.1, JMS 2.0, JSON processing, batch applications, JAX-RS 2.0, and the Java API for WebSockets. It also advertises job openings and provides contact information.
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Java EE 7 - New Features and the WebSocket API
- 1. JAVA EE 7The 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 rendersHTML5 <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, EJB3.2 & 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 JavaAPI 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 FORWEBSOCKETS 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.
- 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 askand 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