Java中对于双属性枚举的使用案例

/**
 * 关系类型枚举
 */
public enum RelationType {
 MAPPING(0,"映射"),
 QUOTE(1,"引用/授权"),
 ENTRUST(2,"委托"),
 AGENT(3,"代理");
 private int value;
 private String desc;
 RelationType(int value ,String desc) {
 this.value = value;
 this.desc = desc;
 }
 public int getValue() { 
    return value; 
  } 
 public String getDesc() {
 return desc;
 }
 public static String getDescByValue(int value) {
 for (RelationType enums : RelationType.values()) {
  if (enums.getValue() == value) {
  return enums.getDesc();
  }
 }
 return "";
 }
}