DataSourceModule.java

public class DataSourceModule extends AbstractModule {

  private DataSource dataSource;

  private final String jndiName;

  public DataSourceModule(final String jndiName)
  {
    this.jndiName = jndiName;
  }
  
  @Override
  protected void configure()
  {
    final Provider<DataSource> provider = new JndiProvider<DataSource>(jndiName);
    dataSource = provider.get();
  }

  @Provides
  @Singleton
  public DataSource getDataSource()
  {
    return dataSource;
  }
  
}