Customizing Hitmap information

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You can customize Hitmap information to generate specific information from the server side. For example, to highlight a group element or change the cursor when you move the mouse over a certain type of element. .

The server side code will generate Hitmap information in JSON format for the Hitmap request.

On the server side you must do the following:

Your servlet must be a subclass of IlvDiagrammerServlet or of one of its existing subclasses, for example IlvFacesMapsServlet.

For JSF, configure the servlet using the servlet attribute in the JSF view component.

//Configure the servlet in the web.xml file.
       <servlet>
               <servlet-name>MapsEditingServlet</servlet-name>
               <servlet-class>demo.editing.MapsEditingServlet</servlet-class>
       </servlet>
       <servlet-mapping>
               <servlet-name>MapsEditingServlet</servlet-name>
               <url-pattern>/MapsEditingServlet</url-pattern>
       </servlet-mapping>

Set the servlet attribute of JSF view component. For example:

 <jvmf:mapView id="maps" servlet="MapsEditingServlet" ... />

You must extend IlvHitmapDefinition. For example:

        package yourpackage;
        public class MyHitmapDefinition extends IlvHitmapDefinition {
                         }

Then add, for example, the following code in the web.xml file and add the hitmap init-param for your servlet.

       <servlet-name>MapsEditingServlet</servlet-name>
               <servlet-class>demo.editing.MapsEditingServlet</servlet-class>
               <init-param>
                       <param-name>hitmap</param-name>
                       <param-value>yourpackage.MyHitmapDefinition</param-value>
               </init-param>
       </servlet>

For more information, see the <installdir> /jviews-maps810/samples/jsf-maps-tiled/index.html sample.

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Using Hitmap technology