What's new in Java EE 7?

Java User Group Berlin Brandenburg
04.12.2013
Dirk Weil, GEDOPLAN GmbH
Dirk Weil
CEO of GEDOPLAN GmbH, Bielefeld, Germany
Java EE since 1998
Conceptual design
and implementation
Talks
Training
...
Java EE
1.0

1998

1.1
1.2

1.3
1.4

2001

Annotations

2002

CDI
2006

5

What's new in Java EE 7?

2013

2010

7
6

3
Java EE-related
Specs in Java SE

Management
and Security
Technologies

Web Services
Technologies

Enterprise Application ...
JavaServer Faces 2.2
Big Ticket Features
Faces Flows
Resource Library Contracts
HTML 5 Friendly Markup
Stateless Views
Sev...
JSF 2.2: Faces Flows
Combination of various views
Internal navigation
Dedicated entry and return views
"Subroutine"
Embedd...
JSF 2.2: Faces Flows
Various flow definitions
Simple, directory-based
Flow descriptor
CDI Producer
Location
Web app root
L...
JSF 2.2: Resource Library Contracts
Encapsulation of templates, images, CSS, JS
Subdirectory of
WebappRoot/contracts
Libra...
JSF 2.2: Resource Library Contracts
Activation
f:view

<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://java.sun...
JSF 2.2: HTML 5 Friendly Markup
Passthrough elements:
Use HTML 5 tags with JSF attributes
<input jsf:id="email" jsf:value=...
JSF 2.2: More Changes
Stateless Views
<f:view transient="true">
UIData supports Collection
@ViewScoped
javax.faces.bean de...
Java Persistence API 2.1
Converter
JPQL & Criteria Query Enhancements
CDI Injection in Entity Listener
DDL Handling
Entity...
JPA 2.1: Converter
@Convert
Explicit type / value mapping
replaces „User Types“ etc.
generalizes @Enumerated, @Temporal
@E...
JPA 2.1: Converter
@Converter
declares converter
can be auto-applied (autoApply = true)
@Converter
public class YesNoConve...
JPA 2.1: JPQL & Criteria Query Enhancements
ON: Join filter

select p.name, count(b)
from Publisher p
left join p.books b
...
JPA 2.1: JPQL & Criteria Query Enhancements
Bulk Update/Delete for Criteria Query
CriteriaUpdate<Product> criteriaUpdate
=...
JPA 2.1: CDI Injection in Entity Listener

public class CountryListener {
@Inject
private AuditService auditService;
@PreU...
JPA 2.1: DDL Handling
Create and/or drop db tables
Based on entity meta data (mapping)
SQL script
Data load script
<persis...
JPA 2.1: DDL Handling
Write create and/or drop scripts
Writer createWriter = …; // File, String …

Map<String, Object> pro...
JPA 2.1: Entity Graphs
Declaration of lazy attributes to be loaded
@Entity
@NamedEntityGraph(name = "Publisher_books",
att...
CDI 1.1
Enhanced bean discovery
Global enablement of interceptors, decorators, alternatives
Constructor interception
Trans...
CDI 1.1: Bean Discovery
Discovery mode: all, annotated, none
Exclusion filter: Class or package
<beans … bean-discovery-mo...
CDI 1.1: Global Enablement of Interceptors etc.
@Priority
Interceptors & decorators
global enablement
Order
@TraceCall
@In...
CDI 1.1: Constructor Interception
@TraceCall @Interceptor @Priority(…)
public class TraceCallInterceptor
{
@AroundConstruc...
CDI 1.1: Transaction Support
Platform global transaction interceptor @Transactional
TX modes like EJB TX attributes
@Trans...
CDI 1.1: Bean Validation for Parameters and Return Values

@NotNull
public List<Questionnaire> createPoll(@Min(10) int
{

...
Restful Webservices (JAX-RS)
Out-of-the-Box
JSON Support

@Path("country")
@Produces(MediaType.APPLICATION_JSON)
public cl...
More new things
Websockets
Concurrency Utilities
Batch

JMS

What's new in Java EE 7?

28
Platforms
GlassFish 4
Reference implementation
Stable version: 4.0
Promoted build: 4.0.1 b03
WildFly 8
Formerly known as J...
Links
Sample Project

https://github.com/dirkweil/whatsNewInJavaEe7
Java EE Blog

http://javaeeblog.wordpress.com/
Consult...
Schön, dass Sie da waren!

dirk.weil@gedoplan.de
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JUG Berlin Brandenburg: What's new in Java EE 7?

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Vortrag auf der Java User Group berlin Brandenbuirg 4.12.2013

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Transcript of "JUG Berlin Brandenburg: What's new in Java EE 7?"

  1. 1. What's new in Java EE 7? Java User Group Berlin Brandenburg 04.12.2013 Dirk Weil, GEDOPLAN GmbH
  2. 2. Dirk Weil CEO of GEDOPLAN GmbH, Bielefeld, Germany Java EE since 1998 Conceptual design and implementation Talks Training Books & articles Power Workshop Java EE 7 2
  3. 3. Java EE 1.0 1998 1.1 1.2 1.3 1.4 2001 Annotations 2002 CDI 2006 5 What's new in Java EE 7? 2013 2010 7 6 3
  4. 4. Java EE-related Specs in Java SE Management and Security Technologies Web Services Technologies Enterprise Application Technologies Web Application Technologies Java EE Platform Java EE 7 What's new in Java EE 7? Specification Java Platform, Enterprise Edition 7 Java API for WebSocket Java API for JSON Processing Java Servlet 3.1 JavaServer Faces 2.2 Expression Language 3.0 JavaServer Pages 2.3 Standard Tag Library for JavaServer Pages 1.2 Batch Applications for the Java Platform Concurrency Utilities for Java EE 1.0 Contexts and Dependency Injection for Java 1.1 Dependency Injection for Java 1.0 Bean Validation 1.1 Enterprise JavaBeans 3.2 Interceptors 1.2 Java EE Connector Architecture 1.7 Java Persistence 2.1 Common Annotations for the Java Platform 1.2 Java Message Service API 2.0 Java Transaction API 1.2 JavaMail 1.5 Java API for RESTful Web Services 2.0 Implementing Enterprise Web Services 1.3 Java API for XML-Based Web Services 2.2 Web Services Metadata for the Java Platform Java API for XML-Based RPC 1.1 (Optional) Java APIs for XML Messaging 1.3 Java API for XML Registries 1.0 Java Authentication Service Provider Interface for Containers 1.1 Java Authorization Contract for Containers 1.5 Java EE Application Deployment 1.2 (Optional) J2EE Management 1.1 Debugging Support for Other Languages 1.0 Java Architecture for XML Binding 2.2 Java API for XML Processing 1.3 Java Database Connectivity 4.0 Java Management Extensions 2.0 JavaBeans Activation Framework 1.1 Streaming API for XML 1.0 Web Profile? Java EE JSR 342 JSR 356 JSR 353 JSR 340 JSR 344 JSR 341 JSR 245 JSR 52 JSR 352 JSR 236 CDI JSR 346 JSR 330 BV JSR 349 EJB JSR 345 JSR 318 JCA JSR 322 JPA JSR 338 JSR 250 JMS JSR 343 JTA JSR 907 Mail JSR 919 JAX-RS JSR 339 JSR 109 JAX-WS JSR 224 JSR 181 JAX-RPC JSR 101 JSR 67 JAXR JSR 93 JSR 196 JACC JSR 115 JSR 88 JSR 77 JSR 45 JAXB JSR 222 JAXP JSR 206 JDBC JSR 221 JMX JSR 003 JAF JSR 925 StAX JSR 173 JSON-P Servlet JSF EL JSP JSTL Batch             JSF 2.2 CDI 1.1 JPA 2.1     JAX-RS 2.0  4
  5. 5. JavaServer Faces 2.2 Big Ticket Features Faces Flows Resource Library Contracts HTML 5 Friendly Markup Stateless Views Several minor enhancements What's new in Java EE 7? 5
  6. 6. JSF 2.2: Faces Flows Combination of various views Internal navigation Dedicated entry and return views "Subroutine" Embeddable Flow scoped values and beans What's new in Java EE 7? 6
  7. 7. JSF 2.2: Faces Flows Various flow definitions Simple, directory-based Flow descriptor CDI Producer Location Web app root Library JAR META-INF/flows What's new in Java EE 7? 7
  8. 8. JSF 2.2: Resource Library Contracts Encapsulation of templates, images, CSS, JS Subdirectory of WebappRoot/contracts Library JAR META-INF/contracts What's new in Java EE 7? 8
  9. 9. JSF 2.2: Resource Library Contracts Activation f:view <html xmlns="http://www.w3.org/1999/xhtml" xmlns:f="http://java.sun.com/jsf/core" …> <f:view contracts="default"> faces-config.xml <faces-config version="2.2" …> <application> <resource-library-contracts> <contract-mapping> <url-pattern>*</url-pattern> <contracts>jugbb</contracts> </contract-mapping> </resource-library-contracts> What's new in Java EE 7? 9
  10. 10. JSF 2.2: HTML 5 Friendly Markup Passthrough elements: Use HTML 5 tags with JSF attributes <input jsf:id="email" jsf:value="#{demoModel.email}“ type="email" name="email" size="40" required="required"/> Passthrough attributes: Use JSF tags with HTML 5 attributes <h:inputText id="nights" value="#{demoModel.nights}" > <f:passThroughAttribute name="type" value="number" /> <f:passThroughAttribute name="size" value="40" /> </h:inputText> What's new in Java EE 7? 10
  11. 11. JSF 2.2: More Changes Stateless Views <f:view transient="true"> UIData supports Collection @ViewScoped javax.faces.bean deprecated in next version (@ManagedBean etc.) What's new in Java EE 7? 11
  12. 12. Java Persistence API 2.1 Converter JPQL & Criteria Query Enhancements CDI Injection in Entity Listener DDL Handling Entity Graphs What's new in Java EE 7? 12
  13. 13. JPA 2.1: Converter @Convert Explicit type / value mapping replaces „User Types“ etc. generalizes @Enumerated, @Temporal @Entity public class Country { @Convert(converter = YesNoConverter.class) private boolean expired; What's new in Java EE 7? 13
  14. 14. JPA 2.1: Converter @Converter declares converter can be auto-applied (autoApply = true) @Converter public class YesNoConverter implements AttributeConverter<Boolean, String> { public String convertToDatabaseColumn(Boolean fieldValue) { if (fieldValue == null) return null; return fieldValue ? "Y" : "N"; } public Boolean convertToEntityAttribute(String columnValue) { if (columnValue == null) return null; return columnValue.equals("Y"); What's new in Java EE 7? 14
  15. 15. JPA 2.1: JPQL & Criteria Query Enhancements ON: Join filter select p.name, count(b) from Publisher p left join p.books b on b.bookType = BookType.PAPERBACK group by p.name TREAT: Downcast (includes filter) select s from StorageLocation s where treat(s.product as Book).bookType = BookType.HARDCOVER FUNCTION: Call DB function select c from Customer c where function('hasGoodCredit', c.balance, c.creditLimit) What's new in Java EE 7? 15
  16. 16. JPA 2.1: JPQL & Criteria Query Enhancements Bulk Update/Delete for Criteria Query CriteriaUpdate<Product> criteriaUpdate = criteriaBuilder.createCriteriaUpdate(Product.class); Root<Product> p = criteriaUpdate.from(Product.class); Path<Number> price = p.get(Product_.price); criteriaUpdate.set(price, criteriaBuilder.prod(price, 1.03)); entityManager.createQuery(criteriaUpdate).executeUpdate(); Stored Procedure Queries StoredProcedureQuery query = entityManager.createStoredProcedureQuery("findMissingProducts"); What's new in Java EE 7? 16
  17. 17. JPA 2.1: CDI Injection in Entity Listener public class CountryListener { @Inject private AuditService auditService; @PreUpdate public void preUpdate(Object entity) { this.auditService.logUpdate(entity); } @Entity @EntityListeners(CountryListener.class) public class Country { What's new in Java EE 7? 17
  18. 18. JPA 2.1: DDL Handling Create and/or drop db tables Based on entity meta data (mapping) SQL script Data load script <persistence … > <persistence-unit name="test"> … <properties> <property name="javax.persistence.schema-generation.database.action" value="drop-and-create" /> <property name="javax.persistence.schema-generation.create-script-source" value="META-INF/create.sql" /> <property name="javax.persistence.schema-generation.create-source" value="metadata-then-script" /> <property name="javax.persistence.sql-load-script-source" value="META-INF/sqlLoad.sql" /> What's new in Java EE 7? 18
  19. 19. JPA 2.1: DDL Handling Write create and/or drop scripts Writer createWriter = …; // File, String … Map<String, Object> properties = new HashMap<>(); properties.put("javax.persistence.schema-generation.scripts.action", "create"); properties.put("javax.persistence.schema-generation.scripts.create-target", createWriter); Persistence.generateSchema("test", properties); What's new in Java EE 7? 19
  20. 20. JPA 2.1: Entity Graphs Declaration of lazy attributes to be loaded @Entity @NamedEntityGraph(name = "Publisher_books", attributeNodes = @NamedAttributeNode(value = "books"))) public class Publisher { … @OneToMany(mappedBy = "publisher", fetch = FetchType.LAZY) private List<Book> books; find parameter or query hint fetchgraph: Fetch entity graph attributes only loadgraph: Fetch eager attributes also TypedQuery<Publisher> query = entityManager.createQuery(…); query.setHint("javax.persistence.fetchgraph", "Publisher_books"); What's new in Java EE 7? 20
  21. 21. CDI 1.1 Enhanced bean discovery Global enablement of interceptors, decorators, alternatives Constructor interception Transaction support Validation for parameters and return values What's new in Java EE 7? 21
  22. 22. CDI 1.1: Bean Discovery Discovery mode: all, annotated, none Exclusion filter: Class or package <beans … bean-discovery-mode="all" version="1.1"> <scan> <exclude name="de.gedoplan.….sub1.beans.DiscoverableBean12"/> <exclude name="de.gedoplan.….sub1.beans.excluded.**"/> <exclude name="de.gedoplan.….dummy.**"> <if-system-property name="NO_DUMMY" value="true" /> </exclude> </scan> </beans> What's new in Java EE 7? 22
  23. 23. CDI 1.1: Global Enablement of Interceptors etc. @Priority Interceptors & decorators global enablement Order @TraceCall @Interceptor @Priority(Interceptor.Priority.APPLICATION + 1) public class TraceCallInterceptor { Alternatives Global activation of alternative with highest priority What's new in Java EE 7? 23
  24. 24. CDI 1.1: Constructor Interception @TraceCall @Interceptor @Priority(…) public class TraceCallInterceptor { @AroundConstruct public Object traceConstructorCall(InvocationContext ic) throws Exception { … } @AroundInvoke public Object traceMethodCall(InvocationContext ic) throws Exception { … } What's new in Java EE 7? 24
  25. 25. CDI 1.1: Transaction Support Platform global transaction interceptor @Transactional TX modes like EJB TX attributes @Transactional(value = TxType.REQUIRED, dontRollbackOn={HarmlessException.class}) public void insert(Cocktail cocktail) { CDI scope @TransactionScoped What's new in Java EE 7? 25
  26. 26. CDI 1.1: Bean Validation for Parameters and Return Values @NotNull public List<Questionnaire> createPoll(@Min(10) int { What's new in Java EE 7? size) 26
  27. 27. Restful Webservices (JAX-RS) Out-of-the-Box JSON Support @Path("country") @Produces(MediaType.APPLICATION_JSON) public class CountryResource { @GET public List<Country> getAll() { … Client API Client client = ClientBuilder.newClient(); WebTarget target = client.target(“http://.../country/DE"); Country country = target.request(MediaType.APPLICATION_XML) .get(Country.class); What's new in Java EE 7? 27
  28. 28. More new things Websockets Concurrency Utilities Batch JMS What's new in Java EE 7? 28
  29. 29. Platforms GlassFish 4 Reference implementation Stable version: 4.0 Promoted build: 4.0.1 b03 WildFly 8 Formerly known as JBoss AS Current version: 8.0.0.Beta1 What's new in Java EE 7? 29
  30. 30. Links Sample Project https://github.com/dirkweil/whatsNewInJavaEe7 Java EE Blog http://javaeeblog.wordpress.com/ Consulting http://www.gedoplan.de dirk.weil@gedoplan.de Training http://www.ips-it-schulungen.de/ What's new in Java EE 7? 30
  31. 31. Schön, dass Sie da waren! dirk.weil@gedoplan.de
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