Hello,
I have seen that there is the prototype mutableArray in the EOModeler
I'm using FrontBase, this prototype by default set external type BLOB
and use methods fromBlob e toBlob
My entity is called CFNewsLetter, here the piece on _CFNewsLetter
public ERXMutableArray staticArticles() {
return (ERXMutableArray) storedValueForKey("staticArticles");
}
public void setStaticArticles(ERXMutableArray value) {
if (_CFNewsLetter.LOG.isDebugEnabled()) {
_CFNewsLetter.LOG.debug( "updating staticArticles from " +
staticArticles() + " to " + value);
}
takeStoredValueForKey(value, "staticArticles");
}
now, static aticle is an object that have whit his serializable
methods, the class is called CFNewsLetterItem, here the relevant piece
of code:
public class CFNewsLetterItem implements Serializable {
/**
*
*/
private static final long serialVersionUID = 782612934512287294L;
protected String title;
protected String link;
protected String area;
protected String categoria;
private void writeObject(java.io.ObjectOutputStream stream) throws
java.io.IOException {
stream.writeObject(title);
stream.writeObject(link);
stream.writeObject(area);
stream.writeObject(categoria);
}
private void readObject(java.io.ObjectInputStream in) throws
java.io.IOException, java.lang.ClassNotFoundException {
title = (String) in.readObject();
link = (String) in.readObject();
area = (String) in.readObject();
categoria = (String) in.readObject();
}
Now, storing is working fine, but when I try to read object I have
this cast error
Sure I'm missing something, but I don't know where, this is the rist
time I store array is database.
Can you help me?
Regards
Amedeo
Mar 12 18:16:56 ConfindustriaNet[22500] INFO
er.transaction.adaptor.Exceptions - Database Exception occured:
java.lang.ClassCastException: er.extensions.foundation.ERXMutableArray
Mar 12 18:16:56 ConfindustriaNet[22500] WARN NSLog -
<com.webobjects.appserver._private.WOComponentRequestHandler>:
Exception occurred while handling request:
java.lang.ClassCastException: er.extensions.foundation.ERXMutableArray
[2009-3-12 18:16:56 CET] <WorkerThread0> java.lang.ClassCastException:
er.extensions.foundation.ERXMutableArray
at
com
.webobjects.jdbcadaptor.JDBCColumn._fetchCorrectObject(JDBCColumn.java:
273)
at com.webobjects.jdbcadaptor.JDBCColumn._fetchValue(JDBCColumn.java:
384)
at com.webobjects.jdbcadaptor.JDBCColumn.fetchValue(JDBCColumn.java:
372)
at com.webobjects.jdbcadaptor.JDBCChannel.fetchRow(JDBCChannel.java:
1462)
at
com
.webobjects
.eoaccess.EODatabaseChannel._fetchObject(EODatabaseChannel.java:321)
at
com
.webobjects
.eoaccess
.EODatabaseContext
._objectsWithFetchSpecificationEditingContext(EODatabaseContext.java:
3071)
at
com
.webobjects
.eoaccess
.EODatabaseContext
.objectsWithFetchSpecification(EODatabaseContext.java:3195)
at
com
.webobjects
.eocontrol
.EOObjectStoreCoordinator
.objectsWithFetchSpecification(EOObjectStoreCoordinator.java:488)
at
com
.webobjects
.eocontrol
.EOEditingContext.objectsWithFetchSpecification(EOEditingContext.java:
4069)
at er.extensions.eof.ERXEC.objectsWithFetchSpecification(ERXEC.java:
1114)
at
com
.webobjects
.eocontrol
.EOEditingContext.objectsWithFetchSpecification(EOEditingContext.java:
4444)
at
it
.chieti
.confindustria
.components
.CFPGNewsLetterList.appendToResponse(CFPGNewsLetterList.java:29)
at com.webobjects.appserver.WOSession.appendToResponse(WOSession.java:
1385)
at
er.extensions.appserver.ERXSession.appendToResponse(ERXSession.java:540)
at
com
.webobjects
.appserver.WOApplication.appendToResponse(WOApplication.java:1794)
at
er
.extensions
.appserver.ERXApplication.appendToResponse(ERXApplication.java:1639)
at
com
.webobjects
.appserver
._private
.WOComponentRequestHandler
._dispatchWithPreparedPage(WOComponentRequestHandler.java:242)
at
com
.webobjects
.appserver
._private
.WOComponentRequestHandler
._dispatchWithPreparedSession(WOComponentRequestHandler.java:298)
at
com
.webobjects
.appserver
._private
.WOComponentRequestHandler
._dispatchWithPreparedApplication(WOComponentRequestHandler.java:332)
at
com
.webobjects
.appserver
._private
.WOComponentRequestHandler
._handleRequest(WOComponentRequestHandler.java:369)
at
com
.webobjects
.appserver
._private
.WOComponentRequestHandler
.handleRequest(WOComponentRequestHandler.java:442)
at
com
.webobjects.appserver.WOApplication.dispatchRequest(WOApplication.java:
1687)
at
er
.extensions
.appserver
.ERXApplication.dispatchRequestImmediately(ERXApplication.java:1737)
at
er
.extensions
.appserver.ERXApplication.dispatchRequest(ERXApplication.java:1702)
at
com
.webobjects
.appserver._private.WOWorkerThread.runOnce(WOWorkerThread.java:144)
at
com
.webobjects.appserver._private.WOWorkerThread.run(WOWorkerThread.java:
226)
at java.lang.Thread.run(Thread.java:613)
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