This problem is known as JSF spec issue 790. If you ajax-render some content which in turn contains a <h:form>, then its view state will get lost, which causes that the 1st action inside that form won’t invoke anything. On the ajax response of the first action, the form will get new view state and … Read more
This problem is in JSF 2 also recognized and explained in detail in the following answer: How can I populate a text field using PrimeFaces AJAX after validation errors occur? If you were using JSF 2, you could have used OmniFaces’ ResetInputAjaxActionListener or PrimeFaces’ <p:resetInput> or resetValues=”true” for this. To the point, you need to … Read more
Assuming you are using Facelets, here’s a relatively good solution: create functions.taglib.xml in your WEB-INF add a context param indicating the location: <context-param> <param-name>facelets.LIBRARIES</param-name> <param-value> /WEB-INF/functions.taglib.xml </param-value> </context-param> In the xml put the following: <?xml version=”1.0″ encoding=”UTF-8″?> <!DOCTYPE facelet-taglib PUBLIC “-//Sun Microsystems, Inc.//DTD Facelet Taglib 1.0//EN” “https://facelets.dev.java.net/source/browse/*checkout*/facelets/src/etc/facelet-taglib_1_0.dtd”> <facelet-taglib xmlns=”http://java.sun.com/JSF/Facelet”> <namespace>http://yournamespace.com/fnc</namespace> <function> <function-name>concat</function-name> <function-class>com.yourpackage.utils.Functions</function-class> <function-signature> java.lang.String … Read more
The <my:mycolumn> element must be an instance of UIColumn as that’s the only valid child of a UIData component during the render response phase. All other UIComponent types will be ignored, thus not rendered. A composite component is implicitly a UINamingContaner component, which isn’t a UIColumn and therefore ignored. A PrimeFaces <p:dataTable> with a backing … Read more
The DB-independent approach would be to let the User have a static Map<User, HttpSession> variable and implement HttpSessionBindingListener (and Object#equals() and Object#hashCode()). This way your webapp will still function after an unforeseen crash which may cause that the DB values don’t get updated (you can of course create a ServletContextListener which resets the DB on … Read more