The DataView component does not currently support listener events. Adding a valueChangeListener to the example results in the following exception:

SEVERE: /WEB-INF/includes/examples/layout/dataview-example.xhtml @60,70 valueChangeListener="#{car.costChanged}": Target Unreachable, identifier 'car' resolved
to null
javax.faces.event.AbortProcessingException: /WEB-INF/includes/examples/layout/dataview-example.xhtml @60,70 valueChangeListener="#{car.costChanged}": Target Unreachable, identifier 'car' resolved to null
        at javax.faces.event.MethodExpressionValueChangeListener.processValueChange(MethodExpressionValueChangeListener.java:157)
        at javax.faces.event.ValueChangeEvent.processListener(ValueChangeEvent.java:134)
        at javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:775)
        at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:751)
        at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:1166)
        at com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:76)
        at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
        at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
        at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
        at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
        at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:999)
        at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:565)
        at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1812)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)