2016-11-07 12:00
The JSF managed bean annotations will be deprecated in JSF 2.3. This includes @ManagedProperty as well. But, compared to other annotations, this one has got an implementa… Read More
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Programming JavaServer Faces (JSF) and OmniFaces technologies. In addition, PrimeFaces, DeltaSpike tips.
2016-11-06 09:32
Starting with JSF 2.3 the JSF "native" managed bean annotations are officially deprecated. So, there is no doubt now that CDI is the road to follow :) Read More
2016-08-22 05:30
2016-08-05 03:57
If you like this article, I think you are going to like JSF 2.3 Tutorial as well Read More
2016-08-05 03:45
![[OmniFaces Utilities (2.4)] Format The Given Number To Nearest 10^n (rounded To Thousands)](https://cdn.blogarama.com/images/posts_thumbs_site_id/3136/313557-478917229.w320.jpg "[OmniFaces Utilities (2.4)] Format The Given Number To Nearest 10^n (rounded To Thousands)")
2016-07-31 14:37
[OmniFaces utilities] The formatThousands() formats the given number to nearest 10n (rounded to thousands), immediately suffixed (without space) with metric unit (k, M, G, T, P or E), roundi… Read More
![[OmniFaces Utilities (2.4)] Format The Given Number To Nearest 10^n, Suffixed With A Space, The Metric Unit Prefix And The Given Unit](https://cdn.blogarama.com/images/posts_thumbs_site_id/3136/313557-2449972074.w320.jpg "[OmniFaces Utilities (2.4)] Format The Given Number To Nearest 10^n, Suffixed With A Space, The Metric Unit Prefix And The Given Unit")
2016-07-23 13:25
[OmniFaces utilities] The formatThousandsUnit() formats the given number to nearest 10n (rounded to thousands), suffixed with a space, the metric unit prefix (k, M, G, T, P or E) and the giv… Read More
2016-07-18 11:35
![[OmniFaces Utilities (2.4)] Get All Request Query String Or View Parameters Appended With All Child UIParameter Components Of The Given Parent Component](https://cdn.blogarama.com/images/posts_thumbs_site_id/3136/313557-329866509.w320.jpg "[OmniFaces Utilities (2.4)] Get All Request Query String Or View Parameters Appended With All Child UIParameter Components Of The Given Parent Component")
2016-07-17 10:51
[OmniFaces utilities] The getParams() returns an unmodifiable map with all request query string or view parameters, appended with all child UIParameter components () of the given parent comp… Read More
![[OmniFaces Utilities (2.4)] Get The HTTP Request URL With Query String, Regardless Of Any Forward](https://cdn.blogarama.com/images/posts_thumbs_site_id/3136/313557-3461743995.w320.jpg "[OmniFaces Utilities (2.4)] Get The HTTP Request URL With Query String, Regardless Of Any Forward")
2016-07-09 11:53
Method:See also: Faces.getRequestDomainURL() | Faces.getRequestURI()Usage:import org.omnifaces.util.Servlets;...@WebServlet("/MyServlet")public class MyServlet extends HttpServlet {&nbs&hell…Read More
![[OmniFaces Utilities (2.4)] Get The HTTP Request Query String, Regardless Of Any Forward](https://cdn.blogarama.com/images/posts_thumbs_site_id/3136/313557-2445660107.w320.jpg "[OmniFaces Utilities (2.4)] Get The HTTP Request Query String, Regardless Of Any Forward")
2016-07-06 13:07
[OmniFaces utilities] The getRequestQueryString() method returns the HTTP request query string, regardless of any forward.Method:Use this one outside JSF context(Servlets#getRequestQueryStri… Read More
![[OmniFaces Utilities (2.4)] Get The HTTP Request URI, Regardless Of Any Forward Or Error Dispatch](https://cdn.blogarama.com/images/posts_thumbs_site_id/3136/313557-1517723305.w320.jpg "[OmniFaces Utilities (2.4)] Get The HTTP Request URI, Regardless Of Any Forward Or Error Dispatch")
2016-07-04 12:37
[OmniFaces utilities] The getRequestURI() method returns the HTTP request URI, regardless of any forward or error dispatch. This is the part after the domain in the request URL, including th… Read More
![[OmniFaces Utilities (2.4)] Get A List Of All Action Expressions And Listeners Associated With Given Component](https://cdn.blogarama.com/images/posts_thumbs_site_id/3136/313557-3773402721.w320.jpg "[OmniFaces Utilities (2.4)] Get A List Of All Action Expressions And Listeners Associated With Given Component")
2016-07-03 12:15
[OmniFaces utilities] The getActionExpressionsAndListeners() method returns a list of all action expressions and listeners associated with given component. This covers expressions in action… Read More
![[OmniFaces Utilities (2.4)] Get The Source Of The Currently Invoked Action](https://cdn.blogarama.com/images/posts_thumbs_site_id/3136/313557-2971211510.w320.jpg "[OmniFaces Utilities (2.4)] Get The Source Of The Currently Invoked Action")
2016-07-03 10:51
[OmniFaces utilities] The getCurrentActionSource() method returns the source of the currently invoked action, or null if there is none, which may happen when the current request is not a pos… Read More
2016-07-02 14:50
2016-06-28 15:42
When we write applications that involves CDI we need to activate CDI by adding in our project a file named beans.xml. Usually, this file will look like below: &n&hell…Read More
![[OmniFaces Utilities (2.4)] Create A Copy Of The Array With Items In Reversed Order](https://cdn.blogarama.com/images/posts_thumbs_site_id/3136/313557-3368748868.w320.jpg "[OmniFaces Utilities (2.4)] Create A Copy Of The Array With Items In Reversed Order")
2016-06-28 12:33
[OmniFaces utilities] The reverseArray() function returns a copy of the array with items in reversed order.Function:Usage:Let's suppose that we have the following simple array defined in a b… Read More
2016-06-28 09:14
Let's checkout a common practice for declaring constants in Java using the public static final declaration:public class Circle { private static final float PI = 3.14f; private stat… Read More
![[OmniFaces Utilities 2.4] Check If The Given Object Is Serializable](https://cdn.blogarama.com/images/posts_thumbs_site_id/3136/313557-211994573.w320.jpg "[OmniFaces Utilities 2.4] Check If The Given Object Is Serializable")
2016-06-23 15:38
[OmniFaces utilities] The isSerializable() method returns true if the given object is serializable.Method:Usage:Example 1 - test Object:import org.omnifaces.util.Utils;...Utils.isSerial… Read More
2016-06-23 13:19
Starting with JSF 2.3, more exactly with m07, we can take advantage of using the auto detection of convertors based on 1st UISelectMany item.The story behind the issue solved in JSF 2.3… Read More
2016-06-21 16:12
Before you read this post please read: Use a CDI alternative as a mock implementation for a stateless session beanSo, since you are familiar with the above post, now let's suppose that we ha… Read More
2016-06-18 11:36
A great feature of CDI (supported by Java EE starting with version 6) consist in alternatives. Basically, we want to specify an alternative for an injected object. Let's have a simple scenar… Read More
2016-06-17 15:58
There are a few approaches to test CDI code such as using @Alternativeand/or mocking. Another approach, presented here is to use the JGlue project - more exactly the CDI-Unit which is a… Read More
2016-06-17 11:44
In this post we will discuss about using the CDI @Observes in a JSF application.Basically, we will exploit the fact that Java EE provides an easier implementation of the observer design… Read More
2016-06-16 12:35
Remeber from the Inject a Java logger via a CDI producer method post that the InjectionPoint can be used to access metadata of the class where the artifact is injected. Based on this stateme… Read More
2016-06-14 09:50
Most commonly when we need to log something via a Java logger, we write something like this:private static final Logger LOG = Logger.getLogger(MyClass.class.getName());Check out the part of… Read More
2016-06-13 15:06
Sometimes, it may be useful to encapsulate the AJAX requests in JavaScript functions placed in the JavaScript global scope in such way that we can simply call them by name, without arguments… Read More
2016-06-12 10:29
The PrimeFaces TabViewcomponent supports a flag attribute named dynamic (defaults to false). When this attribute is set to true, PrimeFaces will load only the content of the initial opened t… Read More
2016-06-10 12:36
Here it is an example of using referencing a producer method via an EL name. The EL expressions used in the JSF page:#{someFoo} #{moreFoo}The Fooqualifier:@Qualifier@Retention(RUNTIME)@Targe… Read More
2016-06-09 13:55
When an error occurs in a Java program it usually results in an exception being thrown. Java exception handling enables Java applications to handle errors and this is an important aspect in… Read More
2016-06-08 14:33
Before checking this application, please get familiar with client behaviors. A simple example is available here.Now, let's write a generic client behavior example. We simply want to display… Read More
2016-06-08 13:31
The "client behavior" idea refer to the fact that a client (user) can perform an action over a component (click, blur, focus, mouse over, mouse out, etc) and trigger a specific behavior. As… Read More
2016-06-02 14:20
After you start using CDI, sooner or later, you will get an error of type: "Ambiguous dependencies for type...". Without too many words, this errors means that CDI should inject a bean into… Read More
2016-06-01 14:20
Most commonly, JSF applications uses dependency injection by annotating private fields with @Inject. We can inject directly an instance of another class (bean) or we can inject an… Read More
2016-05-31 15:08
As you probably know, when a bean is instantiated the first called method is the corresponding constructor. Afterwards, we have the method annotated with @PostConstruct. When this… Read More
2016-05-31 13:34
Generally speaking, any Java class that has a constructor without parameters or a constructor annotated with @Inject is a bean. This means that we can write a bean like this:@Named… Read More
2016-05-15 09:11
This is a simple post about writing a stateless JSF application for holding a dummy shopping cart using Hazelcast. The application uses PrimeFaces, OmniFaces and it is deployed on Payara Ser… Read More
2016-04-23 07:53
Recommended to read before: Caching via PrimeFaces and EHCache (register MBeans in JConsole via OmniFaces @Eager)PrimeFaces supports two different providers of cache implementation: EHCache… Read More
2016-04-22 11:51
PrimeFaces supports cache at rendering time. Basically, at initial request, PrimeFaces will cache the HTML markup that corresponds to the content delimited by <p:cache/>tag. This means… Read More
2016-04-20 07:12
Check also:The three golden rules of useJSF Navigation Tutorial - Implicit NavigationJSF Navigation Tutorial - Declarative NavigationJSF Navigation Tutorial - Conditional NavigationJSF Navig… Read More
2016-04-20 07:11
Check also:The three golden rules of useJSF Navigation Tutorial - Implicit NavigationJSF Navigation Tutorial - Declarative NavigationJSF Navigation Tutorial - Conditional NavigationJSF Navig… Read More
![[OmniFaces Utilities 2.4] URI-encode The Given String Using UTF-8](https://cdn.blogarama.com/images/posts_thumbs_site_id/3136/313557-1032713091.w320.jpg "[OmniFaces Utilities 2.4] URI-encode The Given String Using UTF-8")
2016-04-20 06:09
[OmniFaces utilities] The encodeURI() method encodes the given string using UTF-8. URIs (paths and filenames) have different encoding rules as compared to URLs. URLEncoder is actually only f… Read More
2016-04-19 12:01
Check also:The three golden rules of useJSF Navigation Tutorial - Implicit NavigationJSF Navigation Tutorial - Declarative NavigationJSF VS Series: Implicit Navigation VS Declarative (explic… Read More
2016-04-09 08:11
<o:socket> for web socket based push which can be accessed via CDI @Push - OmniFaces and WebSockets Quickstart<o:skipValidators> to skip al… Read More
![[OmniFaces Utilities 2.3] Load Given Script Resource On Complete Of The Current Ajax Response](https://cdn.blogarama.com/images/posts_thumbs/3150/3149752.w320.jpg "[OmniFaces Utilities 2.3] Load Given Script Resource On Complete Of The Current Ajax Response")
2016-04-09 07:37
[OmniFaces utilities] The load() method loads the given script resource on complete of the current ajax response. Basically, it loads the script resource as String and then delegates it to #… Read More
2016-04-09 05:50
OmniFaces 2.3 comes with a new tag handler named SkipValidators. As its name suggest, this tag handler allows us to entirely skip validation when executing an UICommandor ClientBehaviorHolde… Read More
2016-04-04 12:10
Starting with OmniFaces 2.3 we can take advantage of a brand new feature - register a web socket push connection in client side. Thanks to the OmniFaces team this feature is availa… Read More
2016-04-01 15:57
2016-03-30 04:42
2016-03-28 13:46
In order to understand how this upload is implemented, you have to be familiar with the following article: JSF 2.2 Multiple File Upload with HTML 5 and AJAX.The source code from the above ar… Read More
2016-03-28 09:17
Read also:JSF 2.3 - The WebSocket Quickstart under PayaraJSF 2.3 - Explicitly open/close a websocket channelJSF 2.3 - Conditionally open/close a websocket channelIn this post, we want to wri… Read More
2016-03-27 13:50
Read also: @ManagedBean vs @Named Read More
2016-03-27 11:40
Read also: JSF forward vs redirect Read More
2016-03-27 08:08
Before you read this post I recommend you to read:JSF 2.3 - The WebSocket Quickstart under PayaraJSF 2.3 - Explicitly open/close a websocket channelIn this post, you will see how to conditio… Read More
2016-03-26 06:29
Before you read this post I recommend you to read:JSF 2.3 - The WebSocket Quickstart under PayaraIn this post, you will see how to explicitly open/close a channel. By default, a channel is a… Read More
2016-03-25 08:55
Starting with JSF 2.3-m05 we can take advantage of a brand new feature - register a web socket push connection in client side. Thanks to the JSF team (especially to Bauke Scholtz (aka BalusC… Read More
2016-03-10 08:20
2016-03-07 11:15
Read also: JSF implicit vs. explicit navigation Read More
2016-03-07 11:11
Check also:The three golden rules of useJSF Navigation Tutorial - Declarative NavigationJSF VS Series: Implicit Navigation VS Declarative (explicit) NavigationImplicit navigation is availabl… Read More
2016-03-07 11:10
Check also:The three golden rules of useJSF Navigation Tutorial - Implicit NavigationJSF VS Series: Implicit Navigation VS Declarative (explicit) NavigationDeclarative navigationrefers to de… Read More
2016-03-07 11:06
2016-03-07 11:06
2016-03-07 11:06
2016-03-07 08:32
Check also:JSF Navigation Tutorial - Implicit NavigationJSF Navigation Tutorial - Declarative NavigationWe can talk for hours and hours about JSF navigation, but there are at least three gol… Read More
2016-03-06 07:10
[OmniFaces utilities] The getRemoteAddr() method returns the Internet Protocol (IP) address of the client that sent the request. This will first check the X-Forwarded-For request header and… Read More
2016-03-06 07:04
[OmniFaces utilities] The removeViewState() method remove server side JSF view state associated with current request.MethodSee also: Faces#getSessionAttribute()Moreover, see also the pr… Read More
2016-03-05 10:16
2016-03-05 07:25
[OmniFaces utilities] The formatNumberDefaultForLocale() method formats the given number in the default pattern of the given locale. This is useful when you want to format numbers in for exa… Read More
2016-03-01 08:45
The <ui:debug/>tag (ComponentHandler) defines a debug component in the component tree that is capable of capturing debugging information such as component tree, scoped variables, and v… Read More
2016-03-01 06:26
The OmniFaces <o:validateMultiple/> allows the developer to validate multiple fields by either a custom validator method or, by a managed bean instance which implements the&n&hell…Read More
2016-02-28 07:05
[OmniFaces utilities] The parseLocale() method parses the given object representing the locale to a Locale object. If it is null, then return null. Else if it is already an instance of Local… Read More
2016-02-27 08:09
[OmniFaces utilities] The getStateHelper() method exposes protected state helper into public.Method:See also: Reflection#findMethod()Usage:import org.omnifaces.util.Hacks;...StateHelper… Read More
2016-02-26 06:21
2016-02-25 10:47
IntroductionIn order to understand what a render kit is we have to be aware of some major notions that are very important in this context. For a better understanding please check out the bel… Read More
2016-02-24 10:48
[OmniFaces utilities] The sendFile() sends a file to the response whose content is provided via given output stream callback. The content type will be determined based on file name. The cont… Read More
2016-02-18 09:45
I've just wrote an article about OmniFaces in Oracle Java Magazine (January/February 2016) Read More
2016-02-16 07:04
The <f:convertNumber/> convert a String to a number of required format (it also acts as a validator to ensure the input value is a valid number)Common/basic usage in JSF (I)… Read More
2016-02-14 07:54
[OmniFaces utilities] The getViewName() returns the base name of the current view, without extension, or null if there is no view. E.g. if the view ID is /path/to/some.xhtml, then this will… Read More
2016-02-11 13:00
I've just updated the "PrimeFaces & OmniFaces Powers Combined" with the following new sections and chapters:Chapter 2 (update section)Use <p:commandButton/Link/> and <o:param/&g&hell…Read More
2016-02-10 06:45
[OmniFaces utilities] The formatThousandsUnit() formats the given number to nearest 10n (rounded to thousands), suffixed with a space, the metric unit prefix (k, M, G, T, P or E) and the giv… Read More
2016-02-10 06:45
[OmniFaces utilities] The formatThousands() formats the given number to nearest 10n (rounded to thousands), immediately suffixed (without space) with metric unit (k, M, G, T, P or E), roundi… Read More
2016-02-08 15:26
The <f:setPropertyActionListener/> tag uses an action listener to directly set a value into a managed bean propertyVDLThe <f:setPropertyActionListener/> tag uses an action l… Read More
2016-02-05 11:49
Let's suppose that we have a rating system based on PrimeFaces Ratingcomponent. Basically, we have three rating components that allows to the user to express his opinion about the main shots… Read More
2016-02-04 07:10
ENTER IN A JSF FLOWBeside the implicit navigation via flow ID, when you need to use a navigation case (<navigation-case/>) to enter in a flow, you will have to specify the <to-flow… Read More
2016-02-04 06:34
[OmniFaces utilities] The isActive() returns true when the given CDI managed bean scope is active. I.e., all beans therein can be accessed without facing ContextNotActiveException.Method:Usa… Read More
2016-01-28 14:55
For a quick overview of Mastering OmniFaces book, please check out the SlideShare presentation below: Read More
2016-01-25 14:05
As you probably know, PrimeFaces comes with a very useful support for client side validation based on JSF validation API and Bean Validation. In this post we will focus on Bean Validation, a… Read More
2016-01-25 06:32
As you probably know, PrimeFaces comes with a component capable to display data with a circular animation. This component is named Ring.For example, the below snippet of code will work… Read More
2016-01-23 06:02
Conforming to documentation, "if the class to which @ListenerFor annotation is attached implements SystemEventListener and does not implement ComponentSystemEventListener, "target" is the Ap… Read More
2016-01-20 11:30
As you probably know, PrimeFaces support Bean Validation. Actually, PrimeFaces comes with a client side validation framework integrated with Bean Validation Specification. Basically, P… Read More
2016-01-19 12:10
Let's suppose that we have a <h:selectManyListbox> used in the classical way:<h:form> <h:selectManyListbox value="#… Read More
2016-01-18 10:52
A mistake is to not associate/interpret correctly the JSF lifecycle phases with the listen events types; you have to know which events takes place in which JSF phase. Per example, the below… Read More
2016-01-15 16:57
In a stateless environment, the view scoped beans act as request scoped beans. Besides the fact that you can't create/manipulate views dynamically, this is one of the big disadvantages that… Read More
2016-01-15 16:57
JSF novices use to confuse the JSF tag handlers with JSF component handlers. Basically, tag handlers will not reach the component tree and, as a consequence of this aspect, will not produce… Read More
2016-01-15 16:57
As you probably know, JSF supports dedicated tags for loading resources, such as<h:outputStylesheet> for CSS resources, <h:outputScript> for JavaScript resources and <h:graphi… Read More
2016-01-15 16:57
Suppose that you have a composite component that accepts children via the <cc:insertChildren/>tag. Sometimes you may need to render a certain message when the list of children is empty… Read More
2016-01-15 16:56
Consider the following custom tag structure:<my:tag id="foo" name="fooName"> The id, <strong>#{id}</strong>, belongs to, <strong>#{name}</strong> <… Read More
2016-01-15 16:56
The @PostConstruct annotation is used on a method that needs to be executed after dependency injection is done to perform any initialization. This rule is sometimes "omit… Read More
2016-01-15 08:37
Here it is a set of examples for opening the targeted view in a new browser tab:· for <h:link/>, <h:commandLink/>and … Read More
2016-01-02 14:19
[OmniFaces utilities] The fireEvent() fires the given CDI event, optionally with the given qualifiers.Method:See also: Beans#getManager()Usages:In Java EE the observers are marked with… Read More
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