Kodo.util.*Identity not working in 3.3.2?

Question

Hi, I have been trying to use one of the kodo identity classes for
application identity:
<class name="Person"
identity-type="application"
objectid-class="kodo.util.LongIdentity"
unfortunately the enhancer fails on a missing constructor??
[jdoc] kodo.util.FatalUserException: The objectid-class specified
by type "class kodo.Person" does not have public a no-args constructor.
2nd related question: I developed my own LongIdentity that has the missing
constructor and was planning to use it for most of my object model. on
some occasions, kodo seems to get confused about using the same
object-id-class for more than 1 persistent class:
<class name="Person"
identity-type="application"
objectid-class="kodo.AddressId" <!-- similar to
kodo.util.LongIdentity, used as well by persistent class Address -->
trying to load by id a Person:
Person person = (Person) ((KodoPersistenceManager)
pm).getObjectById(Person.class, ""+2000); // select
6750 TRACE [main] kodo.jdbc.SQL - <t 31737213, conn 19287723> [0 ms]
executing prepstmnt 26665270 SELECT t0.CITY, t0.STREET FROM ADDRESS t0
WHERE t0.ID = ? [params=(long) 2000] [reused=0]
kodo.util.ObjectNotFoundException: The instance "2000 [kodo.AddressId]"
does not exist in the data store.[2000 [kodo.AddressId]]
     at
kodo.runtime.PersistenceManagerImpl.getObjectById(PersistenceManagerImpl.java:2090)
     at
kodo.runtime.PersistenceManagerImpl.getObjectById(PersistenceManagerImpl.java:2005)
     at
kodo.runtime.PersistenceManagerImpl.getObjectById(PersistenceManagerImpl.java:2285)
the problem is that a select on the address table gets executed??
note: if I make a copy/paste of my AddressId and rename it PersonId, then
this works fine.
if all pk are of type long, are we expected to subclass
kodo.util.LongIdentity and add the default constructor for each persistent
class?
thanks for the help,
v.

Answer 1

here you go:
<?xml version="1.0" encoding="UTF-8"?>
<jdo>
     <package name="kodo">
          <class name="Address" identity-type="application">
               <extension vendor-name="kodo" key="jdbc-class-map"
value="base"></extension>
               <extension vendor-name="kodo" key="jdbc-class-map/table"
value="ADDRESS"></extension>
               <extension vendor-name="kodo" key="jdbc-version-ind"
value="none"></extension>
               <extension vendor-name="kodo" key="jdbc-class-ind-name"
value="none"></extension>
               <extension vendor-name="kodo" key="detachable"
value="serialize"></extension>
               <field name="id" primary-key="true">
                    <extension vendor-name="kodo" key="sequence-assigned"
value="true"></extension>
                    <extension vendor-name="kodo" key="jdbc-field-map"
value="value"></extension>
                    <extension vendor-name="kodo" key="jdbc-field-map/column"
value="ID"></extension>
               </field>
               <field name="city">
                    <extension vendor-name="kodo" key="jdbc-field-map"
value="value"></extension>
                    <extension vendor-name="kodo" key="jdbc-field-map/column"
value="CITY"></extension>
               </field>
               <field name="street">
                    <extension vendor-name="kodo" key="jdbc-field-map"
value="value"></extension>
                    <extension vendor-name="kodo" key="jdbc-field-map/column"
value="STREET"></extension>
               </field>
          </class>
          <class name="Person" identity-type="application">
               <extension vendor-name="kodo" key="jdbc-class-map"
value="base"></extension>
               <extension vendor-name="kodo" key="jdbc-class-map/table"
value="PERSON"></extension>
               <extension vendor-name="kodo" key="jdbc-version-ind"
value="none"></extension>
               <extension vendor-name="kodo" key="jdbc-class-ind-name"
value="none"></extension>
               <extension vendor-name="kodo" key="detachable"
value="serialize"></extension>
               <field name="addresses" default-fetch-group="true">
                    <collection element-type="kodo.Address">
                    </collection>
                    <extension vendor-name="kodo" key="jdbc-field-map"
value="one-many"></extension>
                    <extension vendor-name="kodo" key="jdbc-field-map/ref-column.ID"
value="P_ID"></extension>
                    <extension vendor-name="kodo" key="jdbc-field-map/table"
value="ADDRESS"></extension>
               </field>
               <field name="firstname">
                    <extension vendor-name="kodo" key="jdbc-field-map"
value="value"></extension>
                    <extension vendor-name="kodo" key="jdbc-field-map/column"
value="FIRSTNAME"></extension>
               </field>
               <field name="id" primary-key="true">
                    <extension vendor-name="kodo" key="sequence-assigned"
value="true"></extension>
                    <extension vendor-name="kodo" key="jdbc-field-map"
value="value"></extension>
                    <extension vendor-name="kodo" key="jdbc-field-map/column"
value="ID"></extension>
               </field>
               <field name="lastname">
                    <extension vendor-name="kodo" key="jdbc-field-map"
value="value"></extension>
                    <extension vendor-name="kodo" key="jdbc-field-map/column"
value="LASTNAME"></extension>
               </field>
          </class>
     </package>
     <!--
          To use additional vendor extensions, create a vendor-extensions.xml file
that
          contains the additional extensions (in extension tags) and place it in
your
          projects merge dir.
     -->
</jdo>
Patrick Linskey wrote:
Hi Vincent,
Can you post the .jdo file that XDoclet is creating please?
-Patrick
Vincent Sevel wrote:
I tried that but run into another exception:
* @jdo.persistence-capable identity-type="application"
* @jdo.class-vendor-extension vendor-name="kodo" key="jdbc-class-map"
value="base"
* @jdo.class-vendor-extension vendor-name="kodo"
key="jdbc-class-map/table" value="PERSON"
* @jdo.class-vendor-extension vendor-name="kodo" key="jdbc-version-ind"
value="none"
* @jdo.class-vendor-extension vendor-name="kodo"
key="jdbc-class-ind-name" value="none"
* @jdo.class-vendor-extension vendor-name="kodo" key="detachable"
value="serialize"
public class Person implements Serializable {
* @jdo.field primary-key="true"
* @jdo.field-vendor-extension vendor-name="kodo"
key="sequence-assigned" value="true"
* @jdo.field-vendor-extension vendor-name="kodo" key="jdbc-field-map"
value="value"
* @jdo.field-vendor-extension vendor-name="kodo"
key="jdbc-field-map/column" value="ID"
private Long id;
javax.jdo.JDOFatalInternalException
     at kodo.Person.jdoNewObjectIdInstance(Person.java)
     at kodo.util.ApplicationIds.create(ApplicationIds.java:280)
     at
kodo.runtime.PersistenceManagerImpl.makePersistent(PersistenceManagerImpl.java:2424)
     at
kodo.runtime.PersistenceManagerImpl.makePersistent(PersistenceManagerImpl.java:2371)
>>
Person p1 = new Person();
p1.setFirstname("vince");
p1.setLastname("sevel");
Address adr1 = new Address();
adr1.setStreet("1er mai");
adr1.setCity("geneve");
p1.getAddresses().add(adr1);
pm.makePersistent(p1);
I must be missing a flag or property somewhere??
thanks,
v.
Abe White wrote:
When using single field identity in JDO, you don't list an objectid-class
at
>>
all
in your metadata. Just set identity-type to "application".