u need a set method that accept a collection parameter for your li field
-----Original Message-----
From: Dmitry Macsema [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, October 17, 2001 4:03
To: [EMAIL PROTECTED]
Subject: [castor-dev] lazy initialization problem
I'm trying to use lazy initialization and get an exception (see
below). If I turn LI off, everything works fine.
Exception in thread "main" org.exolab.castor.jdo.DataObjectAccessException:
no m
ethod to set value for field: ryba.winlock.CompEvent in class: ClassMolder
ryba.
winlock.Computer
at
org.exolab.castor.persist.FieldMolder.setValue(FieldMolder.java:310)
at org.exolab.castor.persist.ClassMolder.load(ClassMolder.java:755)
at org.exolab.castor.persist.LockEngine.load(LockEngine.java:361)
at
org.exolab.castor.persist.TransactionContext.load(TransactionContext.
java:545)
at
org.exolab.castor.persist.TransactionContext.load(TransactionContext.
java:479)
at org.exolab.castor.persist.ClassMolder.load(ClassMolder.java:742)
at org.exolab.castor.persist.LockEngine.load(LockEngine.java:361)
at
org.exolab.castor.persist.TransactionContext.load(TransactionContext.
java:545)
at
org.exolab.castor.persist.QueryResults.fetch(QueryResults.java:229)
at
org.exolab.castor.jdo.engine.OQLQueryImpl$OQLEnumeration.next(OQLQuer
yImpl.java:643)
at
org.exolab.castor.jdo.engine.OQLQueryImpl$OQLEnumeration.next(OQLQuer
yImpl.java:616)
at ryba.winlock.LockManager.<init>(LockManager.java:37)
at ryba.winlock.LockManager.main(LockManager.java:52)
Here's mapping;
<!DOCTYPE databases PUBLIC "-//EXOLAB/Castor Mapping DTD Version 1.0//EN"
"http://castor.exolab.org/mapping.dtd";>
<mapping>
<description>Locker database mapping</description>
<class name="ryba.winlock.Cafe" identity="id" key-generator="MAX">
<description>Internet cafe</description>
<map-to table="cafe"/>
<field name="id" type="integer" required="true">
<sql name="cafe_id" type="integer"/>
</field>
<field name="name" type="java.lang.String" required="true">
<sql name="name" type="varchar"/>
</field>
<field name="Computers" type="ryba.winlock.Computer"
collection="collection"/>
</class>
<class name="ryba.winlock.Computer" identity="id" key-generator="MAX"
depends="ryba.winlock.Cafe">
<map-to table="computer"/>
<field name="id" type="integer" required="true">
<sql name="computer_id" type="integer"/>
</field>
<field name="cafe" type="ryba.winlock.Cafe" required="true">
<sql name="cafe_id"/>
</field>
<field name="name" type="java.lang.String" required="true">
<sql name="name" type="varchar"/>
</field>
<field name="IP" type="java.lang.String" required="true">
<sql name="ip" type="varchar"/>
</field>
<field name="CompEvents" type="ryba.winlock.CompEvent"
collection="collection"
lazy="true"/>
</class>
<class name="ryba.winlock.CompEvent" identity="id" key-generator="MAX"
depends="ryba.winlock.Computer">
<map-to table="compevent"/>
<field name="id" type="integer" required="true">
<sql name="compevent_id" type="integer"/>
</field>
<field name="computer" type="ryba.winlock.Computer" required="true">
<sql name="computer_id"/>
</field>
<field name="operation" type="ryba.winlock.Operation" required="true">
<sql name="operation_id"/>
</field>
<field name="time" required="true">
<sql name="evttime" type="timestamp"/>
</field>
</class>
<class name="ryba.winlock.Operation" identity="id" key-generator="MAX">
<map-to table="operation"/>
<field name="id" type="integer" required="true">
<sql name="operation_id" type="integer"/>
</field>
<field name="name" type="java.lang.String" required="true">
<sql name="name" type="varchar"/>
</field>
</class>
</mapping>
--
Best regards,
Dmitry mailto:[EMAIL PROTECTED]
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