· Field: description 
· Field Type: java.lang.String 
· Database Column: 权限描述 
· SQL Type: varchar 
效果如下,最后点击完成。
 
注意:如上篇文章一样,将生成代码中的 sql-type="varchar" 改写成 sql-type="varchar(xy)" ,xy是一个合适的VARCHAR 的位数。
 
2. 完成 ejbCreate 和 ejbPostCreate 方法: 
 
3. 在类标记中加入以下标记:
 
● 下面给出了RoleBean.java的完整的源代码:
/*
 * 创建日期 2005-1-25
 *
 * 作者:javamxj(分享java快乐)
 */
package javamxj.ejb.cmp;
/**
 *
 * <!-- begin-user-doc --> You can insert your documentation for '<em><b>RoleBean</b></em>'. <!-- end-user-doc --> *
 <!--  begin-lomboz-definition -->
 <?xml version="1.0" encoding="UTF-8"?>
 <lomboz:EJB xmlns:j2ee="http://java.sun.com/xml/ns/j2ee" xmlns:lomboz="http://lomboz.objectlearn.com/xml/lomboz">
 <lomboz:entity>
 <lomboz:entityEjb>
 <j2ee:display-name>Role</j2ee:display-name>
 <j2ee:ejb-name>Role</j2ee:ejb-name>
 <j2ee:ejb-class>javamxj.ejb.cmp.RoleBean</j2ee:ejb-class>
 <j2ee:persistence-type>Container</j2ee:persistence-type>
 <j2ee:prim-key-class>java.lang.String</j2ee:prim-key-class>
 <j2ee:cmp-version>2.x</j2ee:cmp-version>
 <j2ee:abstract-schema-name>RoleSchema</j2ee:abstract-schema-name>
 <j2ee:primkey-field>name</j2ee:primkey-field>
 </lomboz:entityEjb>
 <lomboz:fieldMappings>
 <lomboz:fieldName>name</lomboz:fieldName>
 <lomboz:fieldType>java.lang.String</lomboz:fieldType>
 <lomboz:columnName>权限名称</lomboz:columnName>
 <lomboz:jdbcType>VARCHAR</lomboz:jdbcType>
 <lomboz:sqlType>varchar</lomboz:sqlType>
 <lomboz:readOnly>false</lomboz:readOnly>
 <lomboz:primaryKey>true</lomboz:primaryKey>
 </lomboz:fieldMappings>
 <lomboz:fieldMappings>
 <lomboz:fieldName>description</lomboz:fieldName>
 <lomboz:fieldType>java.lang.String</lomboz:fieldType>
 <lomboz:columnName>权限描述</lomboz:columnName>
 <lomboz:jdbcType>VARCHAR</lomboz:jdbcType>
 <lomboz:sqlType>varchar</lomboz:sqlType>
 <lomboz:readOnly>false</lomboz:readOnly>
 <lomboz:primaryKey>false</lomboz:primaryKey>
 </lomboz:fieldMappings>
 <lomboz:tableName>RoleTable</lomboz:tableName>
 <lomboz:dataSourceName></lomboz:dataSourceName>
 </lomboz:entity>
 </lomboz:EJB>
 <!--  end-lomboz-definition -->
 *
 * <!-- begin-xdoclet-definition -->
 * @ejb.bean name="Role"
 * jndi-name="Role"
 * type="CMP"
 *  primkey-field="name" 
 *  schema="RoleSchema" 
 *  cmp-version="2.x"
 *  view-type = "local"
 *  data-source=""
 * 
 *  @ejb.persistence 
 *   table-name="RoleTable" 
 *  
 *  @jboss.persistence 
 *    create-table = "true"
 *    remove-table = "false"
 * 
 * @ejb.finder 
 *    query="SELECT OBJECT(a) FROM RoleSchema as a"  
 *    signature="java.util.Collection findAll()"  
 *
 * @ejb.pk class="java.lang.String"
 * <!-- end-xdoclet-definition -->
 * @generated
 **/
public abstract class RoleBean implements javax.ejb.EntityBean {
  /**
   * @ejb.create-method
   */
  public java.lang.String ejbCreate(String name, String description) throws javax.ejb.CreateException {
    // EJB 2.0 spec says return null for CMP ejbCreate methods.
   setName(name);
 setDescription(description);
    return null;
  }
  /**
   * The container invokes this method immediately after it calls ejbCreate.
   */
  public void ejbPostCreate(String name, String description) throws javax.ejb.CreateException {
  }
  /**
   * CMP Field name
   * @return the name
   * @ejb.persistent-field 
   * @ejb.persistence
   *    column-name="权限名称"
   *     jdbc-type="VARCHAR"
   *     sql-type="varchar(12)"
   *     read-only="false"
   * @ejb.pk-field 
   *
   * @ejb.interface-method
   */
  public abstract java.lang.String getName();
  /**
   * @param java.lang.String the new name value
   * @ejb.interface-method
   */
  public abstract void setName(java.lang.String name);
  /**
   * CMP Field description
   * @return the description
   * @ejb.persistent-field 
   * @ejb.persistence
   *    column-name="权限描述"
   *     jdbc-type="VARCHAR"
   *     sql-type="varchar(30)"
   *     read-only="false"
   *  
   *
   * @ejb.interface-method
   */
  public abstract java.lang.String getDescription();
  /**
   * @param java.lang.String the new description value
   * @ejb.interface-method
   */
  public abstract void setDescription(java.lang.String description);
}
   
 
好了,保存,将 RoleBean 加入到 cmpEJB 模块中,然后 lomboz ->Generate EJB Classes 。
 
 
4. 重点:建立 UserBean 对 RoleBean 的多对多的单向联系:
 
·  由于这次设计的是UserBean对RoleBean的单向联系,所以只需要在UserBean中添加方法标记即可。
切换到 UserBean.java ,右击 UserBean ->J2EE ->Add CMR Relationship :
 
 
· 生成的标记如下,还需要手工添加一些@JBoss标记:
· 保存,Generate EJB Classes