问如何对抽象超类的子类使用构建器模式来遵循最佳Java实践？

EN

// CommandBuilder.java
public class CommandBuilder {

 public String name; // required
 public String description = "Default Value"; //optional

 public CommandBuilder(String name) {
  this.name = name;
 }

 public CommandBuilder setDescription(String description) {
  this.description = description;
  return this;
 }

 public CommandBuilder build() {
  return this;
 }
}

// Command.java
public abstract class Command extends ListenerAdapter {

 private String name;
 private String description;

 protected abstract void execCommand(MessageReceivedEvent event);

 public Command(CommandBuilder builder) {
  this.name = builder.name;
  this.description = builder.description;
 }

@Override
public void onMessageReceived(MessageReceivedEvent event) {
   execCommand(event);
 }
}

// ExampleCommand.java
public class ExampleCommand extends Command {

 public ExampleCommand(CommandBuilder builder) {
  super(builder);
 }

 @Override
 protected void execCommand(MessageReceivedEvent event) {
  // ...
 }
}

// Bot.java
public class Bot() {

 public static void main(String[] args) {

  // ...
  jdaBuilder.addEventListener(
   new ExampleCommand(
    new CommandBuilder("Example Command").setDescription("You know it.").build();
   )
  );
  // ...
 }
}