After you create your slot component, you can use ATG Scenarios to determine under what circumstances a gear will be displayed in a slot. The Creating Scenarios chapter in the ATG Personalization Guide for Business Users provides information about how to create a scenario.
For example, you could create a scenario that adds a poll to a portal user’s home page upon login, and removes the poll after the user has voted in the poll. To do this, create a new scenario with the Logs in event followed by the Add items to slot action segment, and the Poll vote event followed by the Remove items from slot action segment:
The following JSP example shows how you might use a slot to render a gear. It assumes you’ve created a slot named /com/acme/slots/MyGearSlot. The TargetingFirst servlet bean is used to display the appropriate gear.
<%@ page import="atg.portal.servlet.*,atg.portal.framework.*" %>
<%@ taglib uri="/paf-taglib" prefix="paf" %>
<%@ taglib uri="/dsp" prefix="dsp" %>
<dsp:page>
<dsp:droplet name="/atg/targeting/TargetingFirst">
<dsp:param name="targeter" bean="/com/acme/slots/MyGearSlot"/>
<dsp:oparam name="output">
<dsp:getvalueof id="gearId" param="element.repositoryId"
idtype="java.lang.String">
<%
//Obtain request/response
PortalServletResponse portalServletResponse =
(PortalServletResponse)request.getAttribute(Attribute.PORTALSERVLETRESPONSE);
PortalServletRequest portalServletRequest =
(PortalServletRequest)request.getAttribute(Attribute.PORTALSERVLETREQUEST);
Portal portal = portalServletRequest.getPortal();
if(portal != null) {
Gear gear = portal.getGearById(gearId);
if(gear != null) {
//Create Gear Context
GearContextImpl gearContext =
new GearContextImpl((GearContext)portalServletRequest);
gearContext.setGear(gear);
gearContext.setGearMode(GearMode.CONTENT);
//Dispatch Gear
RequestDispatcher dispatcher =
portalServletRequest.getRequestDispatcher(gearContext);
if(dispatcher != null)
dispatcher.include(request,response);
}
}
%>
</dsp:getvalueof>
</dsp:oparam>
</dsp:droplet>
</dsp:page>