5.5.1. 使用 XDoclet 标记

很多Hibernate使用者更喜欢使用XDoclet@hibernate.tags将映射信息直接嵌入到源代码中。我们不会在本文档中涉及这个方法，因为严格说来，这属于XDoclet的一部分。然而，我们包含了如下使用XDoclet映射的Cat类的例子。

  1. package eg;
  2. import java.util.Set;
  3. import java.util.Date;
  5. /**
  6.  * @hibernate.class
  7.  *  table="CATS"
  8.  */
  9. public class Cat {
  10.     private Long id; // identifier
  11.     private Date birthdate;
  12.     private Cat mother;
  13.     private Set kittens
  14.     private Color color;
  15.     private char sex;
  16.     private float weight;
  18.     /*
  19.      * @hibernate.id
  20.      *  generator-class="native"
  21.      *  column="CAT_ID"
  22.      */
  23.     public Long getId() {
  24.         return id;
  25.     }
  26.     private void setId(Long id) {
  27.         this.id=id;
  28.     }
  30.     /**
  31.      * @hibernate.many-to-one
  32.      *  column="PARENT_ID"
  33.      */
  34.     public Cat getMother() {
  35.         return mother;
  36.     }
  37.     void setMother(Cat mother) {
  38.         this.mother = mother;
  39.     }
  41.     /**
  42.      * @hibernate.property
  43.      *  column="BIRTH_DATE"
  44.      */
  45.     public Date getBirthdate() {
  46.         return birthdate;
  47.     }
  48.     void setBirthdate(Date date) {
  49.         birthdate = date;
  50.     }
  51.     /**
  52.      * @hibernate.property
  53.      *  column="WEIGHT"
  54.      */
  55.     public float getWeight() {
  56.         return weight;
  57.     }
  58.     void setWeight(float weight) {
  59.         this.weight = weight;
  60.     }
  62.     /**
  63.      * @hibernate.property
  64.      *  column="COLOR"
  65.      *  not-null="true"
  66.      */
  67.     public Color getColor() {
  68.         return color;
  69.     }
  70.     void setColor(Color color) {
  71.         this.color = color;
  72.     }
  73.     /**
  74.      * @hibernate.set
  75.      *  inverse="true"
  76.      *  order-by="BIRTH_DATE"
  77.      * @hibernate.collection-key
  78.      *  column="PARENT_ID"
  79.      * @hibernate.collection-one-to-many
  80.      */
  81.     public Set getKittens() {
  82.         return kittens;
  83.     }
  84.     void setKittens(Set kittens) {
  85.         this.kittens = kittens;
  86.     }
  87.     // addKitten not needed by Hibernate
  88.     public void addKitten(Cat kitten) {
  89.         kittens.add(kitten);
  90.     }
  92.     /**
  93.      * @hibernate.property
  94.      *  column="SEX"
  95.      *  not-null="true"
  96.      *  update="false"
  97.      */
  98.     public char getSex() {
  99.         return sex;
  100.     }
  101.     void setSex(char sex) {
  102.         this.sex=sex;
  103.     }
  104. }

参考Hibernate网站更多的Xdoclet和Hibernate的例子