After adding the key-generator, there is the error below. Caused by: <openjpa-1.0.1-r420667:592145 fatal user error> org.apache.openjpa.pe rsistence.InvalidStateException: The generated value processing detected an exis ting value assigned to this field: openejb.ejbuser.PRODUCTS.productID. This exi sting value was either provided via an initializer or by calling the setter meth od. You either need to remove the @GeneratedValue annotation or modify the code to remove the initializer processing.
I have tried to retrieve the records from database but got nothing. Actually I have configured to have two entities - one BMP and one CMP (this is the one in problem). The database connection for BMP works fine, so that I configure the CMP the same way as BMP as shown in the ejb-jar.xml listed at the end. I doubt whether the database connect method for CMP is different. Please advise what is the correct way for connecting the CMP to Oracle database in OpenEJB. Much thanks. SK content of ejb-jar.xml: <?xml version="1.0" encoding="UTF-8"?> <ejb-jar xmlns="http://java.sun.com/xml/ns/j2ee"; version="2.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/ejb-jar_2_1.xsd";> <display-name>Hello</display-name> <enterprise-beans> <entity> <display-name>AccountEJB</display-name> <ejb-name>AccountEJB</ejb-name> <home>ejbuser.AccountHome</home> <remote>ejbuser.Account</remote> <ejb-class>ejbuser.AccountEJB</ejb-class> <persistence-type>Bean</persistence-type> <prim-key-class>ejbuser.AccountPK</prim-key-class> <reentrant>False</reentrant> <resource-ref> <res-ref-name>jdbc/OracleCMTadmuser</res-ref-name> <res-type>javax.sql.DataSource</res-type> <res-auth>Container</res-auth> <res-sharing-scope>Sharable</res-sharing-scope> </resource-ref> </entity> <entity> <ejb-name>ProductEJB</ejb-name> <home>ejbuser.ProductHome</home> <remote>ejbuser.Product</remote> <ejb-class>ejbuser.ProductEJB</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>PRODUCTS</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>SELECT DISTINCT OBJECT(p) FROM PRODUCTS p WHERE p.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>SELECT DISTINCT OBJECT(p) FROM PRODUCTS p WHERE p.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>SELECT DISTINCT OBJECT(p) FROM PRODUCTS p WHERE p.basePrice = ?1</ejb-ql> </query> <query> <query-method> <method-name>findByExpensiveProducts</method-name> <method-params> <method-param>double</method-param> </method-params> </query-method> <ejb-ql><![CDATA[SELECT DISTINCT OBJECT(p) FROM PRODUCTS p WHERE p.basePrice > ?1]]></ejb-ql> </query> <query> <query-method> <method-name>findByCheapProducts</method-name> <method-params> <method-param>double</method-param> </method-params> </query-method> <ejb-ql><![CDATA[SELECT DISTINCT OBJECT(p) FROM PRODUCTS p WHERE p.basePrice < ?1]]></ejb-ql> </query> <query> <query-method> <method-name>findAllProducts</method-name> <method-params></method-params> </query-method> <ejb-ql>SELECT DISTINCT OBJECT(p) FROM PRODUCTS p WHERE p.productID IS NOT NULL</ejb-ql> </query> <resource-ref> <res-ref-name>jdbc/OracleCMTadmuser</res-ref-name> <res-type>javax.sql.DataSource</res-type> <res-auth>Container</res-auth> <res-sharing-scope>Sharable</res-sharing-scope> </resource-ref> </entity> </enterprise-beans> <assembly-descriptor> <container-transaction> <method> <ejb-name>ProductEJB</ejb-name> <method-intf>Remote</method-intf> <method-name>*</method-name> </method> <method> <ejb-name>ProductEJB</ejb-name> <method-intf>Home</method-intf> <method-name>*</method-name> </method> <trans-attribute>Required</trans-attribute> </container-transaction> <security-role> <description>Users</description> <role-name>users</role-name> </security-role> </assembly-descriptor> </ejb-jar> -- View this message in context: http://www.nabble.com/CMP-Example-with-field-mapping-file-tp17211487p17254718.html Sent from the OpenEJB User mailing list archive at Nabble.com.
