Re: [castor-dev] java.langClassCastException on db2

[Stephen Ince]

I had a few problems.   I introduced a type in my mapping file. ( table="request_headers" should be table="request_header") I made the RequestHeader class implement the Persistent interface ( I don't really think this matters ) The database column size for my strings were too small. (This was an issue after I fixed the typo)   ----- Original Message ----- From: Stephen Ince To: [EMAIL PROTECTED] Sent: Friday, January 24, 2003 12:48 PM Subject: [castor-dev] java.langClassCastException on db2 I am getting the following error when I try to save a Castor JDO to db2. This works fine for mysql but I am having a problem with db2.   java.lang.ClassCastException: com.opendemand.jdo.RequestHeader         at org.exolab.castor.jdo.engine.JDOCallback.releasing(Unknown Source)         at org.exolab.castor.persist.TransactionContext.create(Unknown Source)         at org.exolab.castor.jdo.engine.DatabaseImpl.create(Unknown Source)     I have the following configuration OS: Windows XP professsional Database: db2  UDB 8.1 AppServer: Tomcat 4.18     Database schema. ------------------------------------------------------------------------ create table request_header (   id                    int not null primary key,   web_resource_id       int not null,   name                  varchar(40),   value                 varchar(100),   FOREIGN KEY (web_resource_id) REFERENCES web_resource(web_resource_id) ) ; --------------------------------------------------------------------------   Mapping file: --------------------------------------------------------------------------     <class name="com.opendemand.jdo.RequestHeader" auto-complete="false" identity="id" key-generator="MAX"  depends="com.opendemand.jdo.WebResource"  >         <description>Default mapping for class com.opendemand.jdo.RequestHeader</description>         <map-to xml="request-header" table="request_headers"/>         <field name="id" type="integer" required="false"             direct="false" transient="false">             <sql name="id" type="integer" />             <bind-xml name="id" transient="true" />         </field>         <field name="name" type="string" required="false" direct="false" transient="false">             <bind-xml name="name" node="element"/>             <sql name="name" type="char" />         </field>         <field name="value" type="string" required="false"             direct="false" transient="false">             <bind-xml name="value" node="element"/>             <sql name="value" type="char" />         </field>         <field name="webResource" type="com.opendemand.jdo.WebResource"             required="false" direct="false" transient="false">             <sql name="web_resource_id"  />             <bind-xml name="web-resource" node="attribute" reference="true" transient="true"/>         </field>     </class> -----------------------------------------------------