2015 javaone lad jsf 2.3 & mvc 1.0

Pick Your Java EE Front End JavaServer Faces or Model-‐View-‐Controller

Manfred Riem Principal Member of Staff @mnriem

Copyright © 2015, Oracle and/or its affiliates. All rights reserved. |


Safe Harbor Statement The following is intended to outline our general product direcQon. It is intended for informaQon purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or funcQonality, and should not be relied upon in making purchasing decisions. The development, release, and Qming of any features or funcQonality described for Oracle’s products remains at the sole discreQon of Oracle.

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Program Agenda

What is currently available?

JSF 2.3

MVC 1.0

How to contribute

Closing remarks

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Program Agenda


JSF 2.3

MVC 1.0

How to contribute

Closing remarks

1

2

3

4

5

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• Glassfish 4.1 – Reference implementaQon of JavaEE 7, which includes JSF 2.2.

• WLS 12.2.1 – Coming soon

• Other vendors – Some have already released – Some have announced when they are going to be available

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What is currently available (cont.) ?

•  JSF 2.2 – Resource library contracts – Stateless views – CSRF protecQon – File upload – Faces flows

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Copyright © 2015, Oracle and/or its affiliates. All rights reserved. | 9

<f:view contracts=“#{contractBean.contract}”> <ui:composition template=“/template.xhtml”> <ui:define name=“content”> main content </ui:define> <ui:define name=“footer”> footer info </ui:define> </ui:composition> </f:view>

JSF 2.2 Resource library contracts (using HTML page)


@SessionScoped @Named(“contractBean”} Public class ContractBean { private String contract public String getContract() { this.contract = contract; } }

JSF 2.2 Resource library contracts (Java code)


JSF 2.2 Resource library contracts (filesystem layout)

•  contracts – layout1 •  css –  layout.css

•  header.xhtml

– layout2 •  template.xhtml

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<f:view transient=“true”> <ui:composition template=“/template.xhtml”> <ui:define name=“content”> main content </ui:define> <ui:define name=“footer”> footer info </ui:define> </ui:composition> </f:view>

JSF 2.2 Stateless Views


JSF 2.2 Stateless Views (cont.)

• A view is considered stateless if the transient adribute is set to true, however: – Stateless means that NO view state will be kept – CDI / JSF managed beans can sQll exist – View scoped beans acts like Request scoped beans

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JSF 2.2 Faces Flows

• A flow is a collecQon of resources that represent a specific flow of pages, it can contain or use: – HTML files – CSS files – Java Beans – Resource Library contracts

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<f:view> <h:form enctype=“multipart/form-‐data”>

<h:inputFile value=“#{fileUploadBean.uploadedFile}”> </h:inputFile>

<h:commandButton value=“Submit”/>

</h:form> </f:view>

JSF 2.2 File Upload


@RequestScoped @Named(“fileUploadBean”} Public class FileUploadBean { private Part uploadedFile; public Part getUploadedFile() { return uploadedFile; } public void setUploadedFile(Part uploadedFile) { this.uploadedFile = uploadedFile; } }

JSF 2.2 File Upload (Java code)


Program Agenda


JSF 2.3

MVC 1.0

How to contribute

QuesQons and Answers

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What is on the table for JSF 2.3?

•  Tie up the loose ends – SpecificaQon clarificaQons – CDI alignment •  Ease of use e.g. @Inject FacesContext • @Inject into Validators, Converters, etc.

– HtmlInputHidden is ClientBehaviorHolder

•  Small scale new features

•  JSON ajax component rendering •  Stateless enhancements • GET enhancements • Adopt-‐a-‐JSR

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@FacesConverter(forClass = InjectConverterItem.class, managed = true) public class InjectConverter implements Converter { public InjectConverter() { } @Override public Object getAsObject(FacesContext context, UIComponent component, String value) { return value; } @Override public String getAsString(FacesContext context, UIComponent component, Object value) { return value.toString(); } }

JSF 2.3 Converter injecQon (CDI managed converter)


@FacesValidator(value = "injectValidator", isDefault = false, managed = true) public class InjectValidator implements Validator { public InjectValidator() { } @Override public void validate(FacesContext context, UIComponent component, Object value) throws ValidatorException { } }

JSF 2.3 Validator injecQon (CDI managed converter)


@Named(value = "injectSessionMapBean") @ApplicationScoped public class InjectSessionMap2Bean implements Serializable { @Inject @SessionMap private Map<String, Object> sessionMap; public String getValue() { sessionMap.put("key", "value"); return sessionMap.toString(); } }

JSF 2.3 Session Map injecQon


@Named(value="injectFacesContextBean") @RequestScoped public class InjectFacesContextBean { @Inject FacesContext context; public String getValue() { return context.toString(); } }

JSF 2.3 Faces Context injecQon


JSF 2.3 Other EG contribuQons

•  Support for more data types on ui:repeat and h:dataTable • @FacesDataModel allow generic types •  Your contribuQon?

Some done, some in progress

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Program Agenda


JSF 2.3

MVC 1.0

How to contribute

Closing remarks

1

2

3

4

5

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Where are we at? •  The first Early Dran has been published • Our first Milestone release is available • Our road map is aligning with the JavaEE 8 roadmap • We are requiring JAX-‐RS as we build on top of it • We are requiring Java 8 • We have integrated mulQple contribuQons from: – our EG members – external contributors

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@Path("book") public class BookController { @Inject private Catalog catalog; @Inject private Models models; @GET @Controller @Produces("text/html") @Path("view1/{id}") public String view1(@PathParam("id") String id) { models.put("book", catalog.getBook(id)); return "book.xhtml"; } }

MVC 1.0 Controller example (Controller code)


public class Book { private String title; public String getTitle() { return title; } public void setTitle(String title) { this.title = title; } }

MVC 1.0 Controller example (Book class)


<html xmlns:h=http://xmlns.jcp.org/jsf/html> ... <h1>Book information</h1> <p>#{book.title}</p> ... </html>

MVC 1.0 Controller example (HTML page)


Standard ViewEngines •  JSP •  Facelets

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ViewEngine contribuQons, supported by community • AsciiDoc •  Freemarker • Handlebars •  JSR 223 – Groovy – Nashorn

• Mustache •  Thymeleaf • Velocity

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Enabling ViewEngine extensions • Maven users include the extension dependency – E.g. for Velocity •  <dependency>

<groupId>com.oracle.ozark.ext</groupId> <arQfactId>ozark-‐velocity</arQfactId> <version>x.y.z</version> <scope>compile</scope> </dependency>

• Use the correct extension for the enabled view engine – E.g. for Velocity •  Velocity have a .vm extension

• Non-‐maven users have to include the JARs manually

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Program Agenda


JSF 2.3

MVC 1.0

How to contribute

Closing remarks

1

2

3

4

5

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How to contribute to JSF 2.3 •  Join the users@jsf-‐spec.java.net mailing list and comment • ParQcipate in the Adopt-‐a-‐JSR program (JUGs) •  Test out milestones / snapshots from the RI website (hdp://javaserverfaces.java.net) and file issues if something is not working •  Tweet, blog, socialize to raise awareness about JSF 2.3 • Contribute substanQal code – Step 1 – Write the code – Step 2 – Sign the OCA (Oracle Contributor Agreement) – Step 3 – See your contribuQon be accepted and see a tweet announcing it!

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How to contribute to MVC 1.0 •  Join the users@mvc-‐spec.java.net mailing list and comment • ParQcipate in the Adopt-‐a-‐JSR program (JUGs) •  Test out milestones / snapshots from the RI website (hdp://ozark.java.net) and file issues if something is not working •  Tweet, blog, socialize to raise awareness about MVC 1.0 • Contribute substanQal code – Step 1 – Write the code – Step 2 – Sign the OCA (Oracle Contributor Agreement) – Step 3 – See your contribuQon be accepted and see a tweet announcing it!

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Program Agenda


JSF 2.3

MVC 1.0

How to contribute

Closing remarks

1

2

3

4

5

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Closing remarks • Picking JSF or MVC is a mader of choice, but please consider this – JSF •  Availability of JSF component frameworks which allow you: –  to deliver a consistent UI across department –  foster re-‐use of components

•  Complexity of rendering is hidden from the user

– MVC •  Standardize an acQon/controller based approach •  Stays out of your way with respect to rendering •  Lots of ViewEngines available, new ones easy to integrate

•  JSF and MVC are complementary to each other and they can co-‐exist!

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Safe Harbor Statement The preceding is intended to outline our general product direcQon. It is intended for informaQon purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or funcQonality, and should not be relied upon in making purchasing decisions. The development, release, and Qming of any features or funcQonality described for Oracle’s products remains at the sole discreQon of Oracle.

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2015 javaone lad jsf 2.3 & mvc 1.0

Technology