Hi, Why is the clear() being called? The thing is, query return results are read-only; mutating the results doesn't really make sense. What would you expect the result of calling clear() to be?
-Patrick On Nov 11, 2007 12:50 AM, Miroslav Nachev <[EMAIL PROTECTED]> wrote: > The application is very simple. It is created automatically using NetBeans > "New Project" and then "Database Desktop Application". By default it use > TopLink and everything is working fine. When I change the EntityManager to > OpenJPA in "persistence.xml" it is working in different way (not working > properly) and this exception is thrown on refresh and when I try to create > new record in detailTable. > I forgot to inform you that I am created 2 tables which are related: > MainTable and DetailTable. In current case MainTable are Persons and > DetailTable are Person Address Details. > I can send you the project in WinRAR format or ZIP but you can create it > your self also getting the last NetBeans from NetBeans 6 Development > Downloads <http://www.netbeans.info/downloads/dev.php>. > > 47 address_bookPU INFO [AWT-EventQueue-0] openjpa.Runtime - Starting > OpenJPA 1.1.0-SNAPSHOT > 188 address_bookPU INFO [AWT-EventQueue-0] openjpa.jdbc.JDBC - Using > dictionary class "org.apache.openjpa.jdbc.sql.MySQLDictionary". > 516 address_bookPU INFO [AWT-EventQueue-0] openjpa.Enhance - Creating > subclass for "[class test.Persons, class test.AddressDetails]". This means > that your application will be less efficient and will consume more memory > than it would if you ran the OpenJPA enhancer. Additionally, lazy loading > will not be available for one-to-one and many-to-one persistent attributes > in types using field access; they will be loaded eagerly instead. > data: [EMAIL PROTECTED] > 2007-11-11 10:41:23 org.jdesktop.application.Task failed > SEVERE: [EMAIL PROTECTED] failed: > java.lang.UnsupportedOperationException: Result lists are read-only. > java.lang.UnsupportedOperationException: Result lists are read-only. > at org.apache.openjpa.lib.rop.AbstractResultList.readOnly( > AbstractResultList.java:43) > at org.apache.openjpa.lib.rop.AbstractResultList.clear( > AbstractResultList.java:80) > at org.apache.openjpa.kernel.DelegatingResultList.clear( > DelegatingResultList.java:236) > at > org.jdesktop.observablecollections.ObservableCollections$ObservableListImpl.clear > (ObservableCollections.java:324) > at test.DesktopApplication1View$RefreshTask.doInBackground( > DesktopApplication1View.java:272) > at test.DesktopApplication1View$RefreshTask.doInBackground( > DesktopApplication1View.java:247) > at org.jdesktop.swingworker.SwingWorker$1.call(Unknown Source) > at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java > :303) > at java.util.concurrent.FutureTask.run(FutureTask.java:138) > at org.jdesktop.swingworker.SwingWorker.run(Unknown Source) > at java.util.concurrent.ThreadPoolExecutor$Worker.runTask( > ThreadPoolExecutor.java:885) > at java.util.concurrent.ThreadPoolExecutor$Worker.run( > ThreadPoolExecutor.java:907) > at java.lang.Thread.run(Thread.java:619) > > > Miro. > > > > > On 11/10/07, Patrick Linskey <[EMAIL PROTECTED]> wrote: > > > > Can you post the full stack trace? > > > > -Patrick > > > > On Nov 10, 2007 12:38 PM, Miroslav Nachev <[EMAIL PROTECTED]> wrote: > > > Hi, > > > > > > I try to use OpenJPA together with NetBeans 6 and I have the following > > > exception: > > > "java.lang.UnsupportedOperationException: Result lists are read-only." > > > > > > This exception is not thrown when I am using TopLink. > > > > > > Can you suggest me how to set permanently all result lists to be > > writable by > > > default? > > > > > > > > > Miro. > > > > > > > > > > > -- > > Patrick Linskey > > 202 669 5907 > > > -- Patrick Linskey 202 669 5907
