OmniFaces 4.4 / 3.14.5 / 2.7.25 released!

OmniFaces 4.4 has been released!

It contains a major change in the LRU map which is used under the covers of @ViewScoped and <o:cache> in order to reduce the amount of AtomicReference instances leaving behind in the heap memory. For the remainder two new helper methods to create components have been introduced along a handful bugfixes.

You can find the complete list of additions, changes and fixes at What's new in OmniFaces 4.4? in the showcase.

Installation

Non-Maven users: download OmniFaces 4.4 JAR and drop it in /WEB-INF/lib the usual way, replacing the older version if any.

Maven users: use <version>4.4</version>.

<dependency>
    <groupId>org.omnifaces</groupId>
    <artifactId>omnifaces</artifactId>
    <version>4.4</version>
</dependency>

How about OmniFaces 3.x, 2.x and 1.1x?

OmniFaces 3.x got the same bugfixes as 4.4 and has been released as 3.14.5. This version is for JSF 2.3 users with CDI. In case you've already migrated to Faces 3.0 or 4.0, please use OmniFaces 4.x instead. OmniFaces 2.x got the same bugfixes as well and has been released as 2.7.25. This version is for JSF 2.2 users with CDI. In case you've already migrated to JSF 2.3, please use OmniFaces 3.x instead.

The 1.1x is basically already since 2.5 in maintenance mode. I.e. only critical bugfix versions will be released. It's currently still at 1.14.1 (May 2017), basically featuring the same features as OmniFaces 2.4, but without any JSF 2.2 and CDI things and therefore compatible with CDI-less JSF 2.0/2.1.

jsf.zeef.com is down

No panic. I've restored the lists below =)

Tutorials

1. BalusC JSF 2.3 tutorial (Eclipse/WildFly/Maven)
2. Oracle JSF 2.3 tutorial (Netbeans/Glassfish)
3. BalusC JSF 2.2 tutorial (Eclipse/WildFly)
4. Oracle JSF 2.2 tutorial (Netbeans/Glassfish)
5. BalusC JSF 2.0 tutorial (Eclipse/Glassfish)
6. Oracle JSF 2.0 tutorial (Netbeans/Glassfish)
7. Mkyong JSF 2.0 tutorial (Eclipse/Tomcat/Maven)

General JSF facts

1. History/disadvantages of JSF
2. Difference between JSF, Servlet and JSP
3. Point of using JSTL in JSF
4. Point of component bindings
5. Point of immediate="true"
6. Using HTML4/5 in Facelets
7. Usefulness of faces-config.xml in JSF2
8. Usefulness of stateless JSF
9. XSS, CSRF and SQLi prevention
10. Overview of all web.xml parameters

When to use X or Y

1. JSF vs plain HTML/CSS/JS/jQuery
2. @ManagedBean vs @Named
3. action vs actionListener
4. Navigation vs Redirection
5. f:viewAction vs @PostConstruct
6. f:viewParam vs @ManagedProperty
7. c:forEach vs ui:repeat
8. h:outputLink vs h:commandLink
9. h:button vs h:commandButton
10. implicit vs explicit navigation
11. h:outputLabel vs h:outputText
12. ui:include vs tagfile vs composite vs component vs taghandler

JSF books

1. The Definitive Guide to JSF
2. Mastering OmniFaces
3. Pro CDI 2 in Java EE 8
4. Mastering JSF 2.2
5. Pro JSF 2.2 and HTML5

Why does JSF do this or that

1. Calling getters multiple times
2. URL is sometimes .jsf, sometimes .xhtml
3. URL is one behind on POST navigation
4. Preferring Facelets (XHTML) over JSP
5. Generating ":" as client ID separator
6. State saving with javax.faces.ViewState
7. Requiring ajax-rendered components to be wrapped in another component

Managed beans

1. Choosing the right bean scope
2. Populate f:selectItems from DB
3. Passing h:dataTable row to bean action
4. Getting managed bean by name
5. Getting bundle key in managed bean
6. Process GET parameters on page load

Before learning JSF

1. Basic Java
2. Javabeans
3. HTTP requests
4. MVC controller
5. HTML
6. CSS
7. JavaScript

Best practices

1. Performing navigation
2. Avoid back button to show cached page
3. Handling ViewExpiredException
4. Get rid of .xhtml extension in URLs
5. Remembering JSF locale in session
6. Best place for f:metadata
7. Migrating from JSF 1.2 to 2.0

Facelets

1. Including/templating in Facelets
2. Putting template files in /WEB-INF
3. Creating modular JAR with shared code
4. Declaring f:metadata/f:viewParam
5. Adding custom HTML(5) attributes
6. Showing linebreaks in h:outputText
7. Checking if ui:define for ui:insert exists

Sample applications

1. Java EE Kickoff App
2. JSFlive JSF 2.2 examples
3. JSF / OmniFaces Applications
4. Java EE 7 Samples JSF 2.2

Architecture

1. Controller, Service and DAO
2. What components are MVC in JSF
3. Designing the business/service layer
4. Usefulness of Spring and/or EJB
5. Understanding "session" in EJB
6. Background thread for scheduled task
7. What exactly is Java EE
8. My feedback on "Making Distinctions Between Different Kinds of JSF Managed-Beans" article

CSS/JS/image resources

1. Including CSS/JS/image resources
2. Using JSF client IDs in CSS
3. Using resource libraries/versioning
4. Controlling resource caching

Articles

1. What's new in JSF 2.3?
2. What's new in JSF 2.2?
3. Communication in JSF 2.0
4. Composite component with multiple input fields on a single model property

Troubleshooting

1. h:commandLink/Button is not invoked
2. Validation Error: Value is not valid
3. Conversion Error setting value for 'null Converter'
4. @ViewScoped calls @PostConstruct on every request
5. WARNING: PWC4011: Unable to set request character encoding to UTF-8
6. WARNING: JSF1090: Navigation case not resolved for component
7. WARNING: "Unable to find matching navigation case with from-view-id '[some.xhtml]'"
8. httpError: The Http Transport returned a 0 status code

JavaScript

1. Selecting JSF components in jQuery
2. Selecting JSF components in JS
3. Invoking bean action from JS
4. Passing JS variable to bean
5. Invoking JS function from bean
6. Passing bean property to JS

Blogs

1. The BalusC Code
2. Arjan Tijms' Weblog
3. Thoughts on software development
4. OmniFaces & JSF Fans
5. JSF Corner
6. Hatem Alimam
7. Java Evangelist John Yeary's Blog
8. PrimeFaces blog
9. Código Xules - PrimeFaces (Spanish)

JSF exceptions

1. javax.faces.application.ViewExpiredException: View could not be restored
2. java.lang.IllegalArgumentException: Component ID duplicate has already been found in the view
3. java.lang.IllegalStateException: CDATA tags may not nest
4. java.lang.IllegalStateException: PWC3999: Cannot create a session after the response has been committed
5. java.lang.ClassNotFoundException: com.sun.faces.config.ConfigureListener
6. org.hibernate.LazyInitializationException at com.sun.faces.renderkit.html_basic.MenuRenderer.convertSelectManyValuesForModel
7. UISelectMany on a List<T> causes java.lang.ClassCastException: java.lang.String cannot be cast to T
8. java.lang.NoClassDefFoundError: javax/servlet/jsp/jstl/core/Config

Forms

1. Avoiding double submits
2. Default action when pressing enter key
3. Creating master-detail user interface
4. Reset/clear form after submit
5. Dynamically add/remove JSF components
6. Simple single-page CRUD with p:dialog
7. Cascading h:selectOneMenu

Specifications

1. JSF 2.3 (JSR-372)
2. JSF 2.2 (JSR-344)
3. JSF 2.1 (JSR-314 MR2)
4. JSF 2.0 (JSR-314)

Facelets exceptions

1. javax.faces.view.facelets.FaceletException: Error Parsing /template.xhtml: The entity "nbsp" was referenced, but not declared
2. javax.faces.view.facelets.FaceletException: Error Parsing /page.xhtml: The content of elements must consist of well-formed character data or markup
3. "The entity name must immediately follow the '&' in the entity reference"
4. "This XML file does not appear to have any style information associated with it. The document tree is shown below"
5. "This page calls for XML namespace declared with prefix [tagname] but no taglibrary exists for that namespace"

Conversion/Validation

1. Generic converter for JPA entities
2. Converting ZonedDateTime/LocalDateTime
3. Cross-field validation on multiple inputs
4. Let required depend on another field
5. Let validation depend on invoked action
6. Skip all validation on specific button
7. Creating custom tag with attributes

Documentation

1. JSF 2.3 VDL
2. JSF 2.3 API
3. JSF 2.3 JS
4. JSF 2.2 VDL
5. JSF 2.2 JS

EL exceptions

1. javax.el.PropertyNotFoundException: Target Unreachable
2. java.lang.NumberFormatException: For input string: "[propertyname]"
3. org.apache.jasper.JasperException: The function [methodName] must be used with a prefix when a default namespace is not specified
4. org.apache.el.parser.ParseException: Encountered “(” at line X, column Y. Was expecting one of [...]

Ajax

1. Referencing components in f:ajax
2. Referencing composite components
3. Specifying f:ajax event value
4. Updating a dynamic include via menu
5. Understanding process and update
6. Passing parameter to f:ajax onevent
7. Using jsf.ajax.request()

Libraries

1. Mojarra (Oracle's implementation)
2. MyFaces (Apache's implementation)
3. OmniFaces (utility library)
4. Apache DeltaSpike (utility library)
5. PrimeFaces (jQuery + jQuery UI)
6. PrimeFaces Extensions
7. BootsFaces (Bootstrap + jQuery UI)
8. ButterFaces (Bootstrap UI + jQuery)
9. AngularFaces (AngularJS)
10. BabbagesFaces (faster ajax)
11. MaterialPrime (PF + MaterializeCSS)
12. Tomahawk (standard extensions)

PrimeFaces general

1. Overriding CSS in PrimeFaces
2. Defer loading of PrimeFaces JS files
3. Extend/override PrimeFaces.widget in JS
4. Using PrimeFaces Selectors (PFS)
5. StreamedContent in p:graphicImage
6. Pass parameter to p:remoteCommand
7. Fix corrupted UTF-8 in PrimeFaces
8. Using component ID as widgetVar
9. Auto-hide p:messages after certain time
10. Attaching jQuery event bindings/listeners
11. Change mouse cursor during ajax request

EL (Expression Language)

1. Invoking direct methods in EL
2. Referencing constants in EL
3. Setting and reusing a variable in EL
4. Using EL in id attribute
5. Creating a custom EL function
6. Concatenate Strings in EL
7. instanceof check in EL
8. JSP EL vs JSF EL vs Unified EL

Library Showcases

1. OmniFaces
2. PrimeFaces
3. PrimeFaces Extensions
4. ButterFaces
5. ICEfaces
6. ICEfaces EE
7. Trinidad
8. Tobago
9. Liferay Faces

PrimeFaces dialog

1. Keep p:dialog open on validation fail
2. p:dialog visible vs p:dialog rendered
3. Show p:dialog on successful submit
4. p:commandbutton fails in p:dialog
5. Show row of p:dataTable in p:dialog
6. Clear out p:dialog when adding new item
7. Reuse p:dialog for create and edit item
8. What's p:dialog appendTo attribute for

Uploading and downloading files

1. Uploading with h:inputFile
2. Uploading with p:fileUpload
3. Saving uploaded file on disk
4. Saving uploaded file in DB (BLOB)
5. Serving a file download
6. Serving images stored outside webapp
7. Serving images as byte[] from database
8. Streaming large audio/video/media files

Library Documentation

1. OmniFaces VDL
2. OmniFaces API
3. PrimeFaces VDL
4. PrimeFaces API
5. RichFaces VDL
6. RichFaces API
7. ICEfaces Core 4.x VDL
8. ICEfaces Core 4.x API
9. ICEfaces ACE 4.x VDL
10. ICEfaces ACE 4.x API
11. Trinidad VDL
12. Trinidad API

Custom tags/components

1. Relation between component-family, component-type and renderer-type
2. Determining standard renderers
3. Creating a custom taghandler

Authentication/authorization

1. Performing authentication (check users)
2. Using j_security_check in JSF
3. Redirecting unauthenticated users using homegrown authentication (login filter)
4. Implementing "Remember me" using homegrown authentication
5. Performing authorization (check roles) using homegrown authentication

JSF phases/lifecycle cheatsheet

• fc = FacesContext
• vh = ViewHandler
• in = UIInput
• rq = HttpServletRequest
• id = in.getClientId(fc);

1 RESTORE_VIEW

String viewId = rq.getServletPath(); fc.setViewRoot(vh.createView(fc, viewId));

2 APPLY_REQUEST_VALUES

in.setSubmittedValue(rq.getParameter(id));

3 PROCESS_VALIDATIONS

Object value = in.getSubmittedValue();
try {
  value = in.getConvertedValue(fc, value);
  for (Validator v : in.getValidators())
    v.validate(fc, in, value);
  }
  in.setSubmittedValue(null);
  in.setValue(value);
} catch (ConverterException
    | ValidatorException e) {
  fc.addMessage(id, e.getFacesMessage());
  fc.validationFailed(); // Skips 4+5.
  in.setValid(false);
}

4 UPDATE_MODEL_VALUES

bean.setProperty(in.getValue());

5 INVOKE_APPLICATION

bean.submit();

6 RENDER_RESPONSE

vh.renderView(fc, fc.getViewRoot());

Composite components

1. Composite with multiple input fields
2. Nesting composite in itself to a tree
3. Dynamic CRUD list with composite
4. Initialize backing component
5. Integrate JavaScript in composite
6. Custom renderer for composite
7. Make composite component view scoped

Related topics

1. Dealing with cookie values
2. How to download Mojarra snapshot
3. Upgrade Mojarra in JBoss / WildFly