As to the cause, UIComponent instances are inherently request scoped. The postback effectively creates a brand new instance with properties like values reinitialized to default. In your implementation, it is only filled during encodeXxx(), which is invoked long after decode() wherein the action event needs to be queued and thus too late. You’d better fill … Read more
Whilst your initial solution works, it’s in fact inefficient. This approach basically requires the entire object graph of the Country and State tables (even with circular references) to be fully loaded in Java’s memory per JSF view or session even though when you simultaneously use only e.g. 5 of 150 countries (and thus theoretically 5 … Read more
This is a known issue and unfortunately not trivial to solve without letting all the navigation take place through the view scoped bean in question. See also JSF-impl issue 1839. This does only not cover cases where the enduser changes the URL in browser address bar or closes the window/tab. Their @PreDestroy will also not … Read more
Setting this param to Development enables better error messages, including in the client-side JavaScript, at the cost of some performance. While setting this param to Production will turn off some error messages, and emphasize performance. Source: JSF 2.0 Reminder: Project Stage
Set primefaces.THEME context parameter to none and you’ll get a functional ui with no styles. <context-param> <param-name>primefaces.THEME</param-name> <param-value>none</param-value> </context-param> You don’t need to spend hours editing styles. Styling of PrimeFaces is done via shared styles like ui-widget-header, ui-widget-content which you can customize via the themeroller web form. I don’t think JSF and theming can get … Read more
You need to implement the PhaseListener interface and hook on beforePhase() of the PhaseId_RENDER_RESPONSE. The render response is the last phase of the JSF lifecycle. public class MyPhaseListener implements PhaseListener { @Override public PhaseId getPhaseId() { return PhaseId.RENDER_RESPONSE; } @Override public void beforePhase(PhaseEvent event) { // Do your job here which should run right before … Read more
You can, by using the RequestContext (or PrimeFaces if you are using the version 6.2 or higher) class. Suppose you have the following: <p:dialog id=”myDialogID” widgetVar=”myDialogVar”> …. </p:dialog> So the way you do in the facelet itself, i.e. onclick=myDialogVar.show();, the same can be done in your managed bean like so: For PrimeFaces <= 3.x RequestContext … Read more
Simplest way would be to just bind the value of the checkbox group to the currently iterated object instead of all checkbox groups to one and same parent bean property. In code, just replace value=”#{gridPopUpBean.oneQuestionUserAnswerList}” by value=”#{p.oneQuestionUserAnswerList}” and make changes in the model accordingly. Alternatively, you can also provide a Map of all answers by … Read more
I created few threads in a web application I wholeheartedly hope that you did it the right way and thus it don’t end up in an epic disaster. I would like to update the table automatically to show the current status of thread. Is there any prebuild component I can use in this scenario? You’re … Read more
Just check the dropdown menu’s value in the rendered attribute of the target components and update their common parent by a <f:ajax>. Here’s a kickoff example: <h:selectOneMenu value=”#{bean.item}”> <f:selectItem itemValue=”one” /> <f:selectItem itemValue=”two” /> <f:selectItem itemValue=”three” /> <f:ajax render=”results” /> </h:selectOneMenu> <h:panelGroup id=”results”> <h:panelGroup rendered=”#{bean.item eq ‘one’}”> You have selected “one”. </h:panelGroup> <h:panelGroup rendered=”#{bean.item eq … Read more