ejb-jar.xml

《Master EJB 第二版》

<?xml version="1.0"?>

<!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN" "http://java.sun.com/j2ee/dtds/ejb-jar_2_0.dtd">

<ejb-jar>
 <enterprise-beans>
  <entity>
   <ejb-name>Product</ejb-name>
   <home>examples.ProductHome</home>
   <remote>examples.Product</remote>
   <ejb-class>examples.ProductBean</ejb-class>
   <persistence-type>Container</persistence-type>
   <prim-key-class>java.lang.String</prim-key-class>
   
   <reentrant>False</reentrant>
   
   <cmp-version>2.x</cmp-version>
   <abstract-schema-name>ProductBean</abstract-schema-name>
   
   <cmp-field>
    <field-name>productID</field-name>
   </cmp-field>
   <cmp-field>
    <field-name>name</field-name>
   </cmp-field>
   <cmp-field>
    <field-name>description</field-name>
   </cmp-field>
   <cmp-field>
    <field-name>basePrice</field-name>
   </cmp-field>
   
   <primkey-field>productID</primkey-field>
   
   <query>
    <query-method>
     <method-name>findByName</method-name>
     <method-params>
      <method-param>java.lang.String</method-param>
     </method-params>
    </query-method>
    <ejb-ql>
     <![CDATA[WHERE name = ?1]]>
    </ejb-ql>
   </query>

   <query>
    <query-method>
     <method-name>findByDescription</method-name>
     <method-params>
      <method-param>java.lang.String</method-param>
     </method-params>
    </query-method>
    <ejb-ql>
     <![CDATA[WHERE description = ?1]]>
    </ejb-ql>
   </query>

   <query>
    <query-method>
     <method-name>findByBasePrice</method-name>
     <method-params>
      <method-param>double</method-param>
     </method-params>
    </query-method>
    <ejb-ql>
     <![CDATA[WHERE basePrice = ?1]]>
    </ejb-ql>
   </query>

   <query>
    <query-method>
     <method-name>findExpensiveProducts</method-name>
     <method-params>
      <method-param>double</method-param>
     </method-params>
    </query-method>
    <ejb-ql>
     <![CDATA[WHERE basePrice > ?1]]>
    </ejb-ql>
   </query>

   <query>
    <query-method>
     <method-name>findCheapProducts</method-name>
     <method-params>
      <method-param>double</method-param>
     </method-params>
    </query-method>
    <ejb-ql>
     <![CDATA[WHERE basePrice < ?1]]>
    </ejb-ql>
   </query>

   <query>
    <query-method>
     <method-name>findAllProducts</method-name>
     <method-params>
     </method-params>
    </query-method>
    <ejb-ql>
     <![CDATA[WHERE productID IS NOT NULL]]>
    </ejb-ql>
   </query>

  </entity>
 </enterprise-beans>
    
 <assembly-descriptor>
  <container-transaction>
   <method>
    <ejb-name>Product</ejb-name>
    <method-intf>Remote</method-intf>
    <method-name>*</method-name>
   </method>
   <trans-attribute>Required</trans-attribute>
  </container-transaction>
 </assembly-descriptor>

</ejb-jar>