Hi Andrus,
Thank you for your fast reply!
I tried with the following as you have proposed:
String pathWithConfigurationFiles = System.getProperty("user.dir") +
"/config/cayenne";
config = new FileConfiguration("cayenne.xml");
((FileConfiguration) config).addFilesystemPath(new
File(pathWithConfigurationFiles));
config.initialize();
context = config.getDomain().createDataContext();
Unfortunately this code doesn't solve the issue, still present with
the same
StackTrace.
Other ideas?
Thank you very much for the help!
Cristiano
****************************************************************************
*********+
Hi there,
Looks like a static Configuration singleton is causing a problem.
Could you just keep 2 Configurations separate and avoid using
'initializeSharedConfiguration'. E.g.:
Configuration conf = ...;
conf.initialize();
// store conf reference for later use
...
// use a stored conf to create the context:
DataContext context = conf.getDomain().createDataContext();
Hope this helps.
Andrus
On Sep 3, 2009, at 6:56 PM, Cristiano Ghersi wrote:
Good morning,
I've got a problem using the static method
DataContext.createDataContext();
My environment is the following: I've got a library (let's call it
"DataLayer") which use cayenne for the communication towards a
single DB.
In this library a class called DbManager create a DataContext in its
constructor using this piece of code:
try {
String pathWithConfigurationFiles = "/home/matteo/config/cayenne";
org.apache.cayenne.conf.Configuration conf = new
FileConfiguration("cayenne.xml");
// Cayenne configuration files can be found at this location
((FileConfiguration) conf).addFilesystemPath(new
File(pathWithConfigurationFiles));
org
.apache
.cayenne.conf.Configuration.initializeSharedConfiguration(conf);
} catch (Exception e){
e.printStackTrace();
}
// Create a new one
context = DataContext.createDataContext();
This library is used by two different bundles (OSGi Framework);
let's call
these bundles Bundle1 and Bundle2.
If I use only one of these bundles all goes perfectly well, but if I
try to
start Bundle2 when Bundle1 is already started, the following error
appears
and Bundle2 is stopped:
INFO: loading <node name='PacketNode'
datasource='PacketNode.driver.xml'
factory='org.apache.cayenne.conf.DriverDataSourceFactory'
schema-update-
strategy='org.apache.cayenne.access.dbsync.SkipSchemaUpdateStr
ategy'>.
org.apache.cayenne.ConfigurationException: [v.3.0M6 May 18 2009
07:49:46]
Error during Configuration initialization.
org.apache.cayenne.access.dbsync.SkipSchemaUpdateStrategy cannot be
cast to
org.apache.cayenne.access.dbsync.SchemaUpdateStrategy
at
org
.apache
.cayenne.conf.Configuration.initializeSharedConfiguration(Configur
ation.java:168)
at dbManager.DbManager.<init>(DbManager.java:58)
at
zzz_bundledbquery.DBQueryStarter.start(DBQueryStarter.java:20)
at
org.eclipse.osgi.framework.internal.core.BundleContextImpl
$1.run(BundleConte
xtImpl.java:782)
at java.security.AccessController.doPrivileged(Native
Method)
at
org
.eclipse
.osgi.framework.internal.core.BundleContextImpl.startActivator(Bu
ndleContextImpl.java:773)
at
org
.eclipse
.osgi.framework.internal.core.BundleContextImpl.start(BundleConte
xtImpl.java:754)
at
org
.eclipse
.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.j
ava:352)
at
org
.eclipse
.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle
.java:280)
at
org
.eclipse
.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle
.java:272)
at
org
.eclipse
.osgi.framework.internal.core.FrameworkCommandProvider._start(Fra
meworkCommandProvider.java:253)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
at
sun
.reflect
.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39
)
at
sun
.reflect
.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl
.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org
.eclipse
.osgi.framework.internal.core.FrameworkCommandInterpreter.execute
(FrameworkCommandInterpreter.java:155)
at
org
.eclipse
.osgi.framework.internal.core.FrameworkConsole.docommand(Framewor
kConsole.java:303)
at
org
.eclipse
.osgi.framework.internal.core.FrameworkConsole.console(FrameworkC
onsole.java:288)
at
org
.eclipse
.osgi.framework.internal.core.FrameworkConsole.run(FrameworkConso
le.java:224)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.ClassCastException:
org.apache.cayenne.access.dbsync.SkipSchemaUpdateStrategy cannot be
cast to
org.apache.cayenne.access.dbsync.SchemaUpdateStrategy
at
org
.apache
.cayenne.conf.RuntimeLoadDelegate.shouldLoadDataNode(RuntimeLoadDe
legate.java:303)
at
org.apache.cayenne.conf.ConfigLoader
$NodeHandler.init(ConfigLoader.java:345)
at
org.apache.cayenne.conf.ConfigLoader
$DomainHandler.startElement(ConfigLoader
.java:222)
at
com
.sun
.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(Ab
stractSAXParser.java:501)
at
com
.sun
.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartEl
ement(XMLNSDocumentScannerImpl.java:400)
at
com
.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl
$Fragm
entContentDriver.next(XMLDocumentFragmentScannerImpl.java:2747)
at
com
.sun
.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocum
entScannerImpl.java:648)
at
com
.sun
.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSD
ocumentScannerImpl.java:140)
at
com
.sun
.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanD
ocument(XMLDocumentFragmentScannerImpl.java:510)
at
com
.sun
.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Con
figuration.java:807)
at
com
.sun
.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Con
figuration.java:737)
at
com
.sun
.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:10
7)
at
com
.sun
.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractS
AXParser.java:1205)
at
com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl
$JAXPSAXParser.parse(SA
XParserImpl.java:522)
at
org.apache.cayenne.conf.ConfigLoader.loadDomains(ConfigLoader.java:78)
at
org
.apache
.cayenne.conf.DefaultConfiguration.initialize(DefaultConfiguration
.java:152)
at
org
.apache
.cayenne.conf.Configuration.initializeSharedConfiguration(Configur
ation.java:159)
... 19 more
What I'm missing?
Thank you very much for the help!!
Cristiano Ghersi
