JSF Tip - Use <h:outputText> to easily fetch data from a bean method

Let's suppose that you have the following bean content:

@Named

@SessionScoped

public class PlayerBean implements Serializable {

   

    private Map<Integer, String> atp = new HashMap<>();

    private String player;

    public PlayerBean() {     

        atp.put(1, "Rafael Nadal");

        atp.put(2, "Novak Djokovic");

        atp.put(3, "Roger Federer");

        atp.put(4, "Andy Murray");

        atp.put(5, "David Ferrer");

    }

    public String playerByRank(int rank) {

        return "Number " + rank + " in ATP is: " + atp.get(rank);

    }

}

Now, we simply want to display on screen the ATP player for rank 4. Without any fancy workarounds, we can exploit parameterized EL, as below (no forms, no getters/setters):

<h:body>

 <h:outputText value="#{playerBean.playerByRank(4)}"/>

 #{playerBean.playerByRank(4)}

</h:body>

Output on screen:

Number 4 in ATP is: Andy Murray

Number 4 in ATP is: Andy Murray