Conveniently map between enum and int / String

Question

When working with variables/parameters that can only take a finite number of values, I try to always use Java\'s enum, as in

public enum BonusT         


        

Answer 1

Seems the answer(s) to this question are outdated with the release of Java 8.

1. Don't use ordinal as ordinal is unstable if persisted outside the JVM such as a database.
2. It is relatively easy to create a static map with the key values.

---

public enum AccessLevel {
  PRIVATE("private", 0),
  PUBLIC("public", 1),
  DEFAULT("default", 2);

  AccessLevel(final String name, final int value) {
    this.name = name;
    this.value = value;
  }

  private final String name;
  private final int value;

  public String getName() {
    return name;
  }

  public int getValue() {
    return value;
  }

  static final Map names = Arrays.stream(AccessLevel.values())
      .collect(Collectors.toMap(AccessLevel::getName, Function.identity()));
  static final Map values = Arrays.stream(AccessLevel.values())
      .collect(Collectors.toMap(AccessLevel::getValue, Function.identity()));

  public static AccessLevel fromName(final String name) {
    return names.get(name);
  }

  public static AccessLevel fromValue(final int value) {
    return values.get(value);
  }
}