Hi -
My application is throwing an exception where it used to work. The
exception is as follows:
org.exolab.castor.jdo.DataObjectAccessException: Field invocation error
I say it "used to work", what's changed is that I've added a lot of fields
to the class and to the mapping. I see from the castor source code
(FieldMolder.java) that this exception is a result of an
InvocationTargetException being thrown in FieldMolder.addValue() .
What's frustrating me is that "Field invocation error" is very general, and
I'm not sure which field caused the error. If someone could help me figure
out what that error means, in general, I'd appreciate it. Anyway, some more
detail about the situation.
I'm running in a Tomcat context, using the Castor code in a bean. With
try/catch clauses, I identified that the following piece of code produces
the error:
// code above here intializes db without error...
// next line does not wrap; entire string literal is on one line.
OQLQuery query = db.getOQLQuery("SELECT s FROM
com.tryarc.forecast.Configuration s WHERE id=$1");
query.bind(1);
System.out.println("Query assigned, about to execute...");
QueryResults results = query.execute();
System.out.println(results.size());
config = (Configuration)results.next();
db.commit();
The Configuration class is as follows:
public class Configuration implements java.io.Serializable {
private int id;
//...
}
Well, it's longer, but basically, the accessor and mutator methods just
fetch and assign the ID, respectively. The mapping for that class:
<class name="com.tryarc.forecast.Configuration"
identity="id" key-generator="IDENTITY">
<map-to table="Configurations"/>
<field name="id" type="integer">
<sql name="ConfigID" type="integer" />
</field>
<field name="name" type="string">
<sql name="ConfigName" type="char" />
</field>
<field name="description" type="string">
<sql name="ConfigDescription" type="char" />
</field>
<field name="price" type="double">
<sql name="ConfigPrice" type="double" />
</field>
<field name="cost" type="double">
<sql name="ConfigCost" type="double" />
</field>
<field name="mix" type="double">
<sql name="ConfigMix" type="double" />
</field>
<field name="product" type="com.tryarc.forecast.Product"
required="false" direct="false" lazy="false" transient="false">
<sql name="Config_ProductID" dirty="check" />
</field>
</class>
thanks for any help,
_________________________________
Robert Kent - (617) 413-3510
http://www.rjk-comm.com/
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