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Plataforma Java EE 7: Produtividade & HTML5 - Parte 1
- 2. The following is intended to outline our general product
direction. It is intended for information purposes only, and
may not be incorporated into any contract. It is not a
commitment to deliver any material, code, or functionality,
and should not be relied upon in making purchasing
decisions. The development, release, and timing of any
features or functionality described for Oracle’s products
remains at the sole discretion of Oracle.
2 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 3. Java EE 6
10 Dezembro 2009
3 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 4. Java EE 6 – Estatísticas
• 40+ Milhões de Downloads de Componentes Java EE
• #1 Escolha para Desenvolvedores Enterprise
• #1 Plataforma de Desenvolvimento de Aplicações
• Mais rápida implementação do Java EE
4 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 5. Top 10 Features do Java EE 6
1. EJB dentro de um WAR
2. Injeção de Dependência type-safe
3. Descritores de Deploy opcionais (web.xml, faces-config.xml)
4. JSF padronizado com Facelets
5. Uma única classe por EJB
6. Pontos de Extensão para Servlets e CDI
7. Eventos CDI
8. API de EJBContainer
9. Anotação @Schedule baseado em cron
10. Profile Web para desenvolvimento Java EE leve
5 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 6. Escopo do Java EE 7
Produtividade e HTML5
• Mais Produtividade
– Menos código “boilerplate”
– Funcionalidades mais ricas
– Mais padrões e convenções
• Suporte ao HTML5
– WebSocket
– JSON
– Formulários HTML5
6 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 7. Java EE 7 –JSRs Candidatas
JAX-RS
JAX-RS Java Caching API
Java Caching API
JSP 2.2 JSF 2.2
JSP 2.2 JSF 2.2 2.0
EL 3.0
EL 3.0 (JSR 107)
(JSR 107)
Portable
2.0
Portable
Extensions
Extensions
Concurrency Utilities
Concurrency Utilities
Servlet 3.1
Servlet 3.1 (JSR 236)
(JSR 236)
Common
Common Batch Applications
Batch Applications
Interceptors 1.1 CDI 1.1
Annotations 1.1 Interceptors 1.1 CDI 1.1 (JSR 352)
(JSR 352)
Annotations 1.1
Java API for JSON
Java API for JSON
Managed Beans 1.0
Managed Beans 1.0 EJB 3.2
EJB 3.2 (JSR 353)
(JSR 353)
Connector
Connector Java API for WebSocket
Java API for WebSocket
JPA 2.1
JPA 2.1 JTA 1.2
JTA 1.2 JMS 2.0
JMS 2.0 (JSR 356)
1.6
1.6 (JSR 356)
Novo Nova Atualização
Versão
7 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 8. Agenda
• JAX-RS 2.0
• JMS 2.0
• JSON API 1.0
• WebSockets API 1.0
• Bean Validation 1.1
• Batch API 1.0
• JCache API 1.0
• JPA 2.1
8 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 9. Java API for RESTful Web Services 2.0
Client API - Antes
String address = String.format("http://…/orders/%0$s/customer?shipped=
%1$b", "10", true);
URL url = new URL(address);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("GET");
conn.setDoInput(true);
conn.setDoOutput(false);
BufferedReader br = new BufferedReader(
new
InputStreamReader(conn.getInputStream()));
String line;
while ((line = br.readLine()) != null) {
//. . .
}
9 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 10. Java API for RESTful Web Services 2.0
Client API - Agora
// Obtém instância do Client
Client client = ClientFactory.newClient();
// Obtém nome do cliente para o produto enviado
String name = client.target(“../orders/
{orderId}/customer”)
.resolveTemplate(”orderId", ”10”)
.queryParam(”shipped", ”true”)
.request()
.get(String.class);
10 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 11. Java API for RESTful Web Services 2.0
Client API - Agora
// Sacar dinheiro
Money mon = client.target("http://.../atm/{cardId}/withdrawal")
.resolveTemplate("cardId", "111122223333")
.queryParam("pin", "9876")
.request("application/json")
.post(text("50.0"), Money.class);
11 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 12. Java API for RESTful Web Services 2.0
Client-side Async
Client client = ClientFactory.newClient();
Future<String> future = client.target("http://.../atm/{card}/balance")
.pathParam("card", "1111222233334444")
.queryParam("pin", "1234")
.request("text/plain")
.async()
.get(
new InvocationCallback<String>() {
public void completed(String result) { }
public void failed(InvocationException e) { }
});
12 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 13. Java API for RESTful Web Services 2.0
Server-side Async
@Path("/async/longRunning")
public class MyResource {
@GET
public void longRunningOp(@Suspended AsyncResponse ar) {
ar.setTimeoutHandler(new MyTimoutHandler());
ar.setTimeout(15, SECONDS);
Executors.newSingleThreadExecutor().submit(new Runnable() {
public void run() {
…
ar.resume(result);
}});
}
}
13 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 14. Java API for RESTful Web Services 2.0
Pré-Configurações
public class MyApp extends javax.ws.rs.core.Application {
public Set<Class<?>> getClasses() {
Set<Class<?>> classes = new HashSet<…>();
…
classes.add(JsonMessageBodyReader.class);
classes.add(JsonMessageBodyWriter.class);
classes.add(JsonpInterceptor.class);
…
return classes;
}
} public Set<Class<?>> getClasses() {
…
classes.add(JsonFeature.class);
…
}
14 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 15. Java Message Service 2.0
Enviando mensagem com JMS 1.1 - Antes
@Resource(lookup = "java:global/jms/demoConnectionFactory")
ConnectionFactory connectionFactory;
@Resource(lookup = "java:global/jms/demoQueue")
Queue demoQueue;
public void sendMessage(String payload) {
try {
Connection connection = connectionFactory.createConnection();
try {
Session session = connection.createSession(false,Session.AUTO_ACKNOWLEDGE);
MessageProducer messageProducer = session.createProducer(demoQueue);
TextMessage textMessage = session.createTextMessage(payload);
messageProducer.send(textMessage);
13 LDCs só
} finally { pra enviar
connection.close(); a msg
}
} catch (JMSException ex) {
Logger.getLogger(getClass().getName()).log(Level.SEVERE, null, ex);
}
}
15 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 16. Java Message Service 2.0
API simplificada para fechar objetos JMS
@Resource(lookup = "jms/connFactory")
ConnectionFactory cf;
Uso do bloco
@Resource(lookup="jms/inboundQueue") try-with-resource
Destination dest; s
public void sendMessage (String payload) throws JMSException {
try ( Connection conn = connectionFactory.createConnection();
Session session = conn.createSession();
MessageProducer producer = session.createProducer(dest);
){
Message mess = sess.createTextMessage(payload); close() é
producer.send(mess); chamado
} catch(JMSException e){ automaticamente
// exception handling
}
}
18 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 17. Java Message Service 2.0 JMSContext
Introdução do JMSContext e JMSProducer combina
Connection
e Session
@Resource(lookup = "java:global/jms/demoConnectionFactory")
ConnectionFactory connectionFactory;
Mensagem
@Resource(lookup = "java:global/jms/demoQueue") enviada
Queue demoQueue; diretamente
public void sendMessage (String payload) {
try (JMSContext context = connectionFactory.createContext();){
context.createProducer().send(demoQueue, payload);
} catch (JMSRuntimeException ex) {
// exception handling
} close() é
} chamado
Sem checked automaticamente
exceptions
19 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 18. Java Message Service 2.0
Definição padrão de recursos
Definição de recurso
ou
@JmsConnectionFactory
@Inject
JMSContext context;
@Resource(lookup = "java:global/jms/demoQueue”)
Queue demoQueue;
public void sendMessage(String payload) {
context.createProducer().send(demoQueue, payload);
}
13 linhas 1 line
20 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 19. Java API for JSON Processing 1.0
Streaming API – JsonParser e JsonGenerator
• JsonParser
– Processa JSON em modo “streaming”
• Similar ao XMLStreamReader do StaX
– Como criar
• Json.createParser(…)
• Json.createParserFactory().createParser(…)
– Eventos do processador
• START_ARRAY, END_ARRAY, START_OBJECT, END_OBJECT, ...
21 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 20. Java API for JSON Processing 1.0
Streaming API – JsonParser
{
"firstName": "John", "lastName": "Smith", "age": 25,
"phoneNumber": [
{ "type": "home", "number": "212 555-1234" },
{ "type": "fax", "number": "646 555-4567" }
]
}
Iterator<Event> it = parser.iterator();
Event event = it.next(); // START_OBJECT
event = it.next(); // KEY_NAME
event = it.next(); // VALUE_STRING
String name = parser.getString(); // "John”
29 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 21. Java API for JSON Processing 1.0
Streaming API – JsonParser e JsonGenerator
• JsonGenerator
– Gera JSON no modo streaming
• Similar ao XMLStreamWriter do StaX
– Como criar
• Json.createGenerator(…)
• Json.createGeneratorFactory().createGenerator(…)
– Funcionalidades adicionais
• Ex: código gerado formatado
30 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 22. Java API for JSON Processing 1.0
Streaming API – JsonGenerator
JsonGenerator jg = Json.createGenerator(…);
"phoneNumber": [
{ jg.
"type": "home", .beginArray("phoneNumber")
"number": ”408-123-4567” .beginObject()
}, .add("type", "home")
{ .add("number", "408-123-4567")
"type": ”work", .endObject()
"number": ”408-987-6543” .beginObject()
} .add("type", ”work")
] .add("number", "408-987-6543")
.endObject()
.endArray();
jg.close();
31 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 23. Java API for JSON Processing 1.0
Object Model API
• JsonObject/JsonArray – Objeto JSON e estruturas
de Array
– JsonString e JsonNumber para valores texto e numéricos
• JsonBuilder – Cria JsonObject e JsonArray
• JsonReader – Lê JsonObject e JsonArray
• JsonWriter – Escreve JsonObject e JsonArray
32 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 24. Java API for JSON Processing 1.0
DOM API – JsonReader
• Lê JsonObject e JsonArray de algum input
– I/O Reader, InputStream (+ encoding)
• Possível configurar outras opções
• Utiliza um JsonParser plugável
// Leitura de um objeto JSON
try(JsonReader reader = new JsonReader(io)) {
JsonObject obj = reader.readObject();
}
33 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 25. Java API for JSON Processing 1.0
DOM API – Writer
• Escreve JsonObject e JsonArray para algum output
– I/O Writer, OutputStream (+ encoding)
• Outras configurações, como “pretty printing”
• Utiliza um JsonGenerator plugável
// Escreve um objeto JSON
try(JsonWriter writer = new JsonWriter(io)) {
writer.writeObject(obj);
}
34 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 26. Java API for WebSocket 1.0
Hello World – POJO/Annotation-driven
import javax.websocket.*;
@WebSocketEndpoint("/hello")
public class HelloBean {
@WebSocketMessage
public String sayHello(String name) {
return “Hello “ + name;
}
}
35 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 27. Java API for WebSocket 1.0
Anotações WebSocket
Annotation Level Purpose
@WebSocketEndpoint class Torna um POJO em um WebSocket Endpoint
@WebSocketClient class Torna um POJO em um WebSocket Client
@WebSocketOpen method Intercepta eventos WebSocket Open
@WebSocketClose method Intercepta eventos WebSocket Close
@WebSocketMessage method Intercepta eventos WebSocket Message
@WebSocketPathParam method
parameter Marca um segmento de um template de URI
@WebSocketError method Intercepta erros durante a conversação
36 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 28. Java API for WebSocket 1.0
Atributos do @WebSocketEndpoint
value URI relativa ou template de URI
ex. “/hello” ou “/chat/{subscriber-level}”
decoders lista de decodificadores de mensagens
encoders lista de codificadores de mensagens
subprotocols lista dos protocolos suportados
37 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 29. Java API for WebSocket 1.0
Mensagens customizadas
@WebSocketEndpoint(
value="/hello",
encoders={MyMessage.class},
decoders={MyMessage.class}
)
public class MyEndpoint {
. . .
}
38 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 30. Java API for WebSocket 1.0
Mensagens customizadas – Text
public class MyMessage implements Decoder.Text<MyMessage>,
Encoder.Text<MyMessage> {
private JsonObject jsonObject;
public MyMessage decode(String s) {
jsonObject = new JsonReader(new StringReader(s)).readObject();
return this;
}
public boolean willDecode(String string) {
return true; // Only if can process the payload
}
public String encode(MyMessage myMessage) {
return myMessage.jsonObject.toString();
}
}
Copyright © 2012, Oracle and/or its affiliates. All rights
39
reserved.
- 31. Java API for WebSocket 1.0
Mensagens customizadas – Binary
public class MyMessage implements Decoder.Binary<MyMessage>,
Encoder.Binary<MyMessage> {
public MyMessage decode(byte[] bytes) {
. . .
return this;
}
public boolean willDecode(byte[] bytes) {
. . .
return true; // Only if can process the payload
}
public byte[] encode(MyMessage myMessage) {
. . .
}
}
40 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 32. Java API for WebSocket 1.0
URI Template Matching
• Um nível somente (1 parâmetro na URL)
@WebSocketEndpoint(“/orders/{order-id}”)
public class MyEndpoint {
@WebSocketMessage
public void processOrder(
@WebSocketPathParam(“order-id”)String orderId) {
. . .
}
}
41 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 33. Java API for WebSocket 1.0
Hello World Client
@WebSocketClient
public class HelloClient {
@WebSocketMessage
public void message(String message, Session session) {
// process message from server
}
}
WebSocketContainer c =
ContainerProvider.getClientContainer();
c.connectToServer(HelloClient.class, “…/hello”);
42 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 34. Bean Validation 1.1
Parâmetro de Método e Validação de Resultado
public void placeOrder(
Built-in
@NotNull String productName,
@NotNull @Max(“10”) Integer quantity,
Custom @Customer String customer) {
//. . .
}
@Future
public Date getAppointment() {
//. . .
}
43 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 35. Batch Applications for the Java Platform 1.0
• Serve para tarefas não-interativas e processos longos
• Processamento computacional intensivo
• Pode executar sequencial ou paralelo
• Pode ser inicializado com:
– Chamada adhoc
– Agendado
• Não há uma API de agendamento incluída
44 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 36. Batch Applications for the Java Platform 1.0
Job Specification Language
• Define um Job, Steps e direciona a execução
• Implementado em XML
– Também chamado de “Job XML”
• Suporta herança de Job, Step, Flow, e Split
49 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 37. Batch Applications for the Java Platform 1.0
Job Specification Language – Exemplo
<job id=“myJob”>
<step id=“init”>
<chunk reader=“R” writer=W” processor=“P” />
<next on=“initialized” to=“process”/>
<fail on=“initError”/>
</step>
<step id=“process”>
<batchlet ref=“ProcessAndEmail”/>
<end on=”success”/>
<fail on=”*” exit-status=“FAILURE”/>
</step>
</job>
50 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 38. Batch Applications for the Java Platform 1.0
Job Specification Language – Chunked
<step id=”sendStatements”> @ReadItem
<chunk reader=”AccountReader” public Account readAccount() {
processor=”AccountProcessor” // read account using JPA
writer=”EmailWriter” }
chunk-size=”10” />
</step>
@ProcessItem
public Account processAccount(Account account) {
// calculate balance
}
@WriteItems
public void sendEmail(List<Account> accounts) {
// use JavaMail to send email
}
51 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 39. Batch Applications for the Java Platform 1.0
Job Specification Language: Batchlet
<step id=”transferFile”>
<batchlet ref=“MyFileTransfer” />
</step>
@Process
public void transferFile(String name) {
// Transfer file
}
52 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 40. Batch Applications for the Java Platform 1.0
Conceitos: Listeners
• Job listener: intercepta a execução batch
– @BeforeJob, @AfterJob
• Step listener
– @BeforeStep, @AfterStep
• Chunk listener
– @BeforeChunk, @AfterChunk, @BeforeCheckpoint,
@AfterCheckpoint
• Listeners para read/process/write de itens, . . .
53 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 41. Java Temporary Caching API 1.0
• API e semântica para cache temporário em memória
para objetos Java
– Criação de objetos
– Acesso compartilhado
– Spooling
– Invalidez de objetos
– Consistência entre diversas JVMs
• SPI para implementações
55 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 42. Java Temporary Caching API 1.0
Exemplo – Criando um CacheManager
CacheManager cacheManager =
CacheManagerFactory.getCacheManager();
ou verbosamente
CacheManager cacheManager =
CacheManagerFactory.getCacheManager(DEFAULT_CACHE_M
ANAGER_NAME,
Thread.currentThread().getContextClassLoader());
60 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 43. Java Temporary Caching API 1.0
Exemplo – Usando o Cache
• Obtém um cache do CacheManager
Cache<Integer, Date> cache =
cacheManager.getCache(“testCache”);
61 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 44. Java Temporary Caching API 1.0
Exemplo – Configurando o Cache
• Configurar um cache para “read-through”
CacheManager cacheManager = getCacheManager();
Cache testCache =
cacheManager.createCacheBuilder(“testCache”)
.setReadThrough(true)
.setSize(Size.UNLIMITED)
.setExpiry(Duration.ETERNAL)
.build();
62 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 45. Java Temporary Caching API 1.0
Exemplo – Colocando um valor no cache
Cache<Integer, Date> cache =
cacheManager.getCache(cacheName);
Integer key = 1;
cache.put(key, new Date());
63 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 46. Java Temporary Caching API 1.0
Exemplo – Obtendo um valor do cache
Cache<Integer, Date> cache =
cacheManager.getCache(cacheName);
Date value = cache.get(key);
64 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 47. Java Temporary Caching API 1.0
Exemplo – Removendo um valor do cache
Cache<Integer, Date> cache =
cacheManager.getCache(cacheName);
Integer key = 1;
cache.remove(1);
65 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 48. Java Temporary Caching API 1.0
Exemplo – Blog
public class BlogManager {
@CachePut(cacheName=”blogManager”)
public void createEntry(
@CacheKeyParam String title,
@CacheValue Blog blog) {...}
. . .
66 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 49. Java Temporary Caching API 1.0
Exemplo – Blog
. . .
@CacheResult(cacheName="blogManager")
public Blog getBlogEntry(String title) {...}
@CacheResult(cacheName="blogManager")
public Blog getEntryCached(
String randomArg,
@CacheKeyParam String title) {...}
. . .
67 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 50. Java Temporary Caching API 1.0
Annotations – Exemplo do Blog
. . .
@CacheRemoveEntry(cacheName="blogManager")
public void removeBlogEntry(String title) {...}
@CacheRemoveAll(cacheName="blogManager")
public void removeAllBlogs() {...}
}
68 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 51. Java Temporary Caching API 1.0
Possíveis implementações
• Terracotta – Ehcache
• Oracle – Coherence
• JBoss – Inifinispan
• IBM – ExtremeeScale
• SpringSorce – Gemfire
• Google App Engine – Java memcache client
• Spymemcache memcache client
69 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 52. Java Persistence API 2.1
• Geração do schema
• Persistence Context assíncronos
• Converters
• Bulk (batch) update/delete usando o Criteria
• Acesso padronizado a FUNCTIONS pela API
• Acesso padronizado a Stored Procedures pela API
70 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 53. Java Persistence API 2.1
Unsynchronized Persistence Contexts
• Synchronized: TX aplicada no banco no commit
• Unsynchronized: Não fica sincronizada com a TX do JTA até o
joinTransaction ser chamado
– Não permite escrita no banco de dados
– Mas pode chamar: persist, merge, remove, refresh
• Funciona tanto gerenciado pelo container quanto pela aplicação
• Caso de uso
– Conversão de modelagem
– Monitorar mudanças na persistência, efetuar commit somente no final
76 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 54. Java Persistence API 2.1
Unsynchronized Persistence Contexts Sample
@Stateful public class ShoppingCart {
@PersistenceContext(type=EXTENDED, synchronization=UNSYNCHRONIZED)
EntityManager em;
@PersistenceContext EntityManager dataMiningEM;
Customer customer;
Order order;
public void startToShop(Integer custId) {
customer = em.find(Customer.class, custId);
order = new Order(); }
77 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 55. Java Persistence API 2.1
Unsynchronized Persistence Contexts - Exemplo
public Collection<Book> viewCart() {
// suggest other books based on interests
...}
// purchase the books
public void confirmOrder() {
em.joinTransaction();
customer.addOrder(order);
}
78 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 56. Java Persistence API 2.1
Stored Procedure Query
@Entity
@NamedStoredProcedureQuery(name="topGiftsStoredProcedure”, procedureName="Top10Gifts")
public class Product {
. . .
}
StoredProcedreQuery query =
EntityManager.createNamedStoredProcedureQuery("topGiftsStoredProcedure");
query.registerStoredProcedureParameter(1, String.class, ParameterMode.INOUT);
query.setParameter(1, "top10");
query.registerStoredProcedureParameter(2, Integer.class, ParameterMode.IN);
query.setParameter(2, 100);
// there are other setParameter methods for defining the temporal type
. . .
query.execute();
String response = query.getOutputParameterValue(1);
79 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 57. Java Persistence API 2.1
Update e Delete com Criteria
CriteriaUpdate<Customer> q = cb.createCriteriaUpdate(Customer.class);
Root<Customer> c = q.from(Customer.class); UPDATE Customer c
q.set(c.get(Customer_.status), "outstanding") SET c.status = 'outstanding'
.where(cb.lt(c.get(Customer_.balance), 10000)); WHERE c.balance < 10000
. . .
@PersistenceContext EntityManager em;
Query query = em.createQuery(q);
query.executeUpdate();
CriteriaDelete<Customer> q = cb.createCriteriaDelete(Customer.class);
Root<Customer> c = q.from(Customer.class);
q.where(cb.equal(c.get(Customer_.status), "inactive"),
cb.isEmpty(c.get(Customer_.orders))); DELETE FROM Customer c
. . . WHERE c.status = 'inactive'
AND c.orders IS EMPTY
80 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 58. GlassFish Roadmap
GlassFish v3 GlassFish Server 3.1 GlassFish Server 3.1.2
•Java EE 6 support •Centralized administration •Bug Fixes
•Single instance •Clustering / HA •Incremental features
•GlassFish Enterprise Mgr •GlassFish Server Control
2009 2010 2011 2012 2013
GlassFish Server 3.0.1 GlassFish Server 3.1.1 GlassFish Server 4
•Oracle branding •Bug fixes •Java EE 7
•Oracle platform support •Updated components •Productivity
•Oracle interoperability •Incremental features •HTML5
121 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 59. Transparência
• JSRs de Java EE 7 da Oracle estão abertos no java.net
– http://javaee-spec.java.net
– One project per spec – ex: jpa-spec, jax-rs-spec, jms-spec…
• Mensagens de email do EG são públicas
• Área de download com acesso público
• Issue Tracker com acesso público
• Compromisso para atualizar para o JCP 2.8
122 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 60. Java EE 7: Status e Agenda
• Todas as JSRs estão ativas e em andamento
• Todas já publicaram Early Drafts, várias em Public Review
• Lançamento em: Q2 2013
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reserved.
- 61. Adopt-a-JSR
O que é ?
• Iniciativa de líderes JUGs para se involverem em JSR
• Promover as JSRs para a comunidade Java
• O que posso fazer ?
– Revisar a spec e os javadocs
– Criar aplicações usando a spec beta
– Contribuir para a RI, exemplos, docs
– Apresentar para JUGs ou conferências
– Blog
– ...
126 Copyright © 2012, Oracle and/or its affiliates. All rights
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- 62. Adopt-a-JSR
Como posso começar? – glassfish.org/adoptajsr
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- 63. Adopt-a-JSR
JUGs participando do programa
128 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.
- 64. Como participar
• Java EE 7 Expert Group
– javaee-spec.java.net
• Java EE 7 Reference Implementation
– glassfish.org
• The Aquarium
– blogs.oracle.com/theaquarium
• Adopt-a-JSR
– glassfish.org/adoptajsr
129 Copyright © 2012, Oracle and/or its affiliates. All rights
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- 65. 130 Copyright © 2012, Oracle and/or its affiliates. All rights
reserved.