Creating an “Edit my Item”-page in Java Server Faces with Facelets

Question

Let\'s say that you have the following Facelet ( Using Facelets 1.1.12 ):

edit_item.xhtml which i access with edit_item.jsf

Now i have anot

Answer 1

You can use the faces-config.xml configuration to inject the ID from the param map.

For this simple bean:

public class BeanWithId implements Serializable {
  private String id;
  private String info;

  private void populateInfo() {
    info = "Some info from data source for id=" + id;
  }

  public String getId() { return id; }

  public void setId(String id) {
    this.id = id;
    populateInfo();
  }

  public String getInfo() { return info; }
  public void setInfo(String info) { this.info = info; }

  public String save() {
    System.out.println("Saving changes to persistence store");
    return null; // no navigation
  }
}

You could inject the ID using this definition:

  
    beanWithId
    datasource.BeanWithId
    request
    
      id
      java.lang.String
      #{param.ID}
    
  

Facelets form:

  
ID: 
  
Info: 
  

    
  

This isn't the only way to do it (you could look the ID up directly using the FacesContext for example).