The PrimeFaces ThemeSwitcher component

PrimeFaces provides a component called ThemeSwitcher, which allows us to change themes dynamically without having to refresh the page that we are on. In order to get this to work, we need to create some classes known as JavaBeans, which provide things that the ThemeSwitcher needs in order to work its magic.

We are going to add some new packages to our project and then create our Beans. Perform the following steps to add new packages to our project:

Now, in order to create our first Bean, perform the following steps:

The source code file for the ThemesService Bean is then opened by NetBeans, and it should look like this:

package com.andyba.pfthemes.themes;

import java.util.logging.Logger;
import javax.inject.Named;
import javax.enterprise.context.ApplicationScoped;

/**
 *
 * @author Andy_2
 */
@ManagedBean@ApplicationScoped
public class ThemesService {

  private static final Logger logger = Logger.getLogger(ThemesService.class.getName());

  /**
  * Creates a new instance of ThemesService
  */
  public ThemesService() {

}

Now, for those of you who are familiar with JSF Contexts and Dependency Injection (CDI), the annotations won't be a mystery. For those of you who are not, I will briefly explain the following: