package.jdo

jdo 例子使用PrismTech类库 初步入门级使用 学习Java Data Objects的好例子

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE jdo PUBLIC
    "-//Sun Microsystems, Inc.//DTD Java Data Objects Metadata 2.0//EN"
    "http://java.sun.com/dtd/jdo_2_0.dtd">
<jdo>
    <package name="iks.ethz.jpoxdemo.plain">
    
        <class name="Book">
    	<inheritance strategy="new_table" />
            <field
                  name="author"
                  persistence-modifier="persistent"/>
            <field
                  name="isbn"
                  persistence-modifier="persistent"/>
            <field
                  name="publisher"
                  persistence-modifier="persistent"/>
        </class>
        <class name="Product">
         <inheritance strategy="new_table" />
            <field 
                  name="name"
                  persistence-modifier="persistent"/>
            <field
                  name="description"
                  persistence-modifier="persistent"/>
            <field
                  name="price"
                  persistence-modifier="persistent"/>
        </class>
    </package>
</jdo>