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https://docs.jboss.org/richfaces/latest_3_3_X/en/devguide/html/a4j_support.html
The <a4j:support> component is the most important core component in the RichFaces library. It enriches any existing non-Ajax JSF or RichFaces component with Ajax capability. All other RichFaces Ajax components are based on the same principles <a4j:support> has.
https://javabeat.net/a4jsupport-how-to-use-action-attribute/
Jul 18, 2008 · a4j:support and action attribute. This example program demonstrates how to use action attribute to update the server values and display in the screen. In this example user inputs are passed to update method and processed. The values are updated in the h:panelGrid component. also read: Introduction to JSF; JSF Interview Questions
http://ac.aua.am/CIS/AVSL/Literature/JSF/eBooks/Ajax4JSF/ch06s21.html
The <a4j:support> component adds an AJAX support to any existing JSF component. It allows a component to generate asynchronous requests on the necessary event demand and with partial update of page content after a response incoming from the server.
https://planet.jboss.org/post/using_richfaces_a4j_jsfunction_sending_an_ajax_request_from_any_javascript
Jun 03, 2010 · For example, a4j:commandButton will generate an HTML button that fires an Ajax request. a4j:commandLink will do the same but generates a link. a4j:support is always attached to another JSF component to enable sending an Ajax request based on some event supported by the parent component. a4j:poll which allows sending Ajax requests periodically.
https://stackoverflow.com/questions/6818408/richfaces-a4j-support-action-actionlistener-for-an-inputtext-inside-a-datata
I have a JSP page in which the user must be allowed to edit data from a column and, when the form is submitted, update the respective table in database. Number of rows from this table is variable. ...
https://developer.jboss.org/thread/151878
Nov 19, 2010 · For point 2 , I find that the reRender preperties of the <a4j:support> can accept the EL expression , so I tried to use <a4j:support event="onchange" action="#{Bean1.onSelectOneMenuChange}" reRender="#{Bean1.reRenderIDList}" /> .
https://www.howtobuildsoftware.com/index.php/how-do/giB/ajax-jsf-richfaces-ajax4jsf-a4jsupport-value-retrieved-from-hselectonemenu-is-always-null
There's a datatable with a h:selectOneMenu in each row. I want to be able to retrieve the value selected in the selectOneMenu in the bean. I'm using richfaces a4j:support …
https://community.oracle.com/thread/1719247
Jul 14, 2010 · Hi All, I Need to Hide/Show the outputpanel when i select one option from <h:selectOneRadio> using a4j:support. By default Date output panel is hidden but when yes option is selected it should be displayed and vice versa using ajax support.
https://docs.jboss.org/richfaces/latest_3_3_X/en/tlddoc/a4j/support.html
Tag support. Adds the AJAX functionality for those UIComponent-based component that have properties for JavaScript events. During Decoding: If a request is Ajax-performed, obtains the Map from the "requestParameterMap" property of the ExternalContext. If this Map contains non null value for the "clientId" key, creates a javax.faces.event ...
https://richfaces.jboss.org/
RichFaces 4 builds upon the pioneering Ajax support that began with RichFaces 3 and is standardized in JSF 2. In addition to extending these ajax capabilities, RichFaces also improves other areas of JSF 2, including usability, performance tuning, dynamic resources, skinning, and component development.
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