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Backup/Restore bug
- To: ozone-dev@ozone-db.org
- Subject: Backup/Restore bug
- From: Jörg Prante <joerg@7val.com>
- Date: Fri, 2 Mar 2001 15:12:36 +0100
- Delivered-To: softw7-ozone-db:org-ozone-dev@ozone-db.org
- Organization: Sevenval AG e-commerce base technologies
- Reply-To: joerg@7val.com
Hi,
I try to backup an Ozone database, but I can't restore it.
The reason is that a hash object with subclasses ( Hashtable,
HashMap, DxHashMap, whatever) cannot be re-instantiated during restore.
Here is a log of a try with a HashMap:
--------snip---------
[info] (833) InvokeServer: connection established...
[info] (286) InvokeServer: user logged in: joerg
[info] (286) BackupRestore: beginRestore()...
[info] (286) BackupRestore: processRestoreChunk(): size=8710
handleValueObjStartElement: java.lang.InstantiationException:
java.util.HashMap$Entry
handleMemberEndElement: java.lang.NoSuchFieldException
handleMemberEndElement: java.lang.NoSuchFieldException
handleMemberEndElement: java.lang.NoSuchFieldException
handleValueObjStartElement: java.lang.InstantiationException:
[message repeats]
--------snip---------
I even tried a customized class 'UserProp', but restore fails with:
--------snip---------
[info] (833) InvokeServer: connection established...
[info] (816) InvokeServer: user logged in: joerg
[info] (816) ClusterStore: loadCluster(): load cluster from disk: 101
[info] (816) BackupRestore: beginRestore()...
[info] (816) BackupRestore: processRestoreChunk(): size=6110
handleValueObjStartElement: java.lang.InstantiationException:
com.sevenval.fit.user.ozone.UserProp
handleMemberEndElement: java.lang.NoSuchFieldException
handleMemberEndElement: java.lang.NoSuchFieldException
[message repeats]
--------snip---------
Jörg
--
Jörg Prante
Sevenval AG (HRB 32757) e-business marketing technologies
D-50667 Köln . Alter Markt 36-42
Fon +49 221 65007-0 . Fax 4249891
http://www.sevenval.de . joerg@7val.com