Lu - Add entities.Borrower to the classes list in your persistence.xml file.
Thanks, Rick 2010/8/8 Lu Jiang <[email protected]> > Hi,Rick > > Thanks for your reply. > > The persistence.xml is : > <?xml version="1.0" encoding="UTF-8"?> > <persistence version="2.0" > xmlns="http://java.sun.com/xml/ns/persistence"; > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; > xsi:schemaLocation="http://java.sun.com/xml/ns/persistence > http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd";> > <persistence-unit name="CourseSelectPU" transaction-type="RESOURCE_LOCAL"> > > <provider>org.apache.openjpa.persistence.PersistenceProviderImpl</provider> > <class>entities.Book1</class> > <class>entities.Book2</class> > <class>entities.Book3</class> > <properties> > <property name="openjpa.ConnectionPassword" value="app"/> > <property name="openjpa.ConnectionDriverName" > value="org.apache.derby.jdbc.ClientDriver"/> > <property name="openjpa.ConnectionUserName" value="app"/> > <property name="openjpa.ConnectionURL" > value="jdbc:derby://localhost:1527/sample"/> > <property name="openjpa.jdbc.SynchronizeMappings" > value="buildSchema(ForeignKeys=true)"/> > <property name="openjpa.AutoDetach" value="close, commit, > nontx-read"/> > </properties> > </persistence-unit> > </persistence> > > Any comments?Thanks in advanceļ¼ >
