· 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