[OmniFaces utilities (2.0)] Joins all elements of the given map to a single string, separated by the given key-value pair separator and entry separator

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[OmniFaces utilities] The joinMap() function joins all elements of the given map to a single string, separated by the given key-value pair separator and entry separator

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Function:

Usage:

Let's suppose that we have a managed bean named PlayersBean that contains the following Map:

@Named

@ViewScoped

public class PlayerBean implements Serializable {

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

 public PlayerBean() {

  players.put("1", "RAFAEL NADAL");

  players.put("2", "NOVAK DJOKOVIC");

  players.put("3", "STANISLAS WAWRINKA");

  players.put("4", "JUAN MARTIN DEL POTRO");

  players.put("5", "ROGER FEDERER");

 }

 public Map<String, String> getPlayers() {

  return players;

 }

 public void setPlayers(Map<String, String> players) {

  this.players = players;

 }

}

Now, in page, we can join this Map items into a String of items delimited by comma (each key-value pair is separated by dot), as below:

Join players:

<strong>#{of:joinMap(playerBean.players, '.', ', ')}</strong>

Outputs:

Join players: 1.RAFAEL NADAL, 2.NOVAK DJOKOVIC, 3.STANISLAS WAWRINKA, 4.JUAN MARTIN DEL POTRO, 5.ROGER FEDERER

API GH