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License Agreement. Rich Faces - Natural Ajax for Java Server Faces (JSF) Copyright (C) 2007 Exadel, Inc. This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License version 2.1 as published by the Free Software Foundation. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
package org.richfaces.component;

The <a4j:poll> component allows periodical sending of Ajax requests to the server. It is used for repeatedly updating a page at specific time intervals.

@JsfComponent(tag = @Tag(generate = false, handler = "org.richfaces.view.facelets.html.AjaxPollHandler", type = .), renderer = @JsfRenderer(type = "org.richfaces.PollRenderer"), attributes = { "ajax-props.xml" })
public abstract class AbstractPoll extends AbstractActionComponent {
    public static final String COMPONENT_TYPE = "org.richfaces.Poll";
    public static final String COMPONENT_FAMILY = "org.richfaces.Poll";
    public static final String TIMER = "timer";
    public static final String ON_TIMER = "ontimer";
    public static final String BEGIN = "begin";
    public static final String ON_BEGIN = "onbegin";
    public static final String COMPLETE = "complete";
    public static final String ON_COMPLETE = "oncomplete";
    public static final String BEFOREDOMUPDATE = "beforedomupdate";
    public static final String ON_BEFOREDOMUPDATE = "onbeforedomupdate";

Specifies the time in milliseconds between requests. The default for this value is 1000 ms (1 second)
    public abstract int getInterval();

Enables/disables polling to the server. Using Expression Language (EL), the enabled attribute can point to a bean property to apply a particular attribute value
    @Attribute(defaultValue = "true")
    public abstract boolean isEnabled();

The client-side script method to be called after the timer counts down, but before the Ajax request is initiated
    @Attribute(events = @EventName(value = , defaultEvent = true))
    public abstract String getOntimer();
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