Adrian,
following the stack trace of this exception, I suspect that there are
some issues with DataNode settings. I am adding a better assertion code
to cayenne now (to get informative message instead of
NullPointerException), but for now could you verify a few things :
1. Are there any warnings when you save your DataMap in the Modeler?
Like "DataMap not linked to any DataNodes" ?
2. Is there a DataNode configured at all?
3. If there is, did you select OracleAdapter in DBAdapter dropdown?
(Otherwise you would see a warning "DataNode has no DbAdapter").
If this doesn't help, I will need to take a look at your Cayenne XML
files.
Andrus
On Friday, May 23, 2003, at 05:03 PM, Marconetto, Adrian Eduardo (A.)
wrote:
> Hi, I´m really new using Cayenne.
> I´m just trying the product, using a web application.
>
> I think I've set up everything as stated in the docs. Then I ussed the
> modeler to create my classes and stored them in the same package of
> the servlet. Then I added the primary key support to the related
> tables in my database (Oracle 9i).
>
> The following code is in the doPost method of my servlet.
>
> **Init method of my servlet:
>
> public void init(ServletConfig config) throws ServletException
> {
> super.init(config);
> // disable logging configuration attempts by Cayenne
>
> org.objectstyle.cayenne.conf.Configuration.setLoggingConfigured(true);
> //configure log4j
> BasicConfigurator.configure();
> }
>
> **In the doPost method I have this Cayenne related relevant code:
>
>
>
> DataContext ctxt
> =BasicServletConfiguration.getDefaultContext(request.getSession());
>
> BkbTmpConsulta consulta = (BkbTmpConsulta)
> ctxt.createAndRegisterNewObject("BkbTmpConsulta");
> consulta.setBtcNroConsulta("1234");
>
> // commit to the database
> // using log level of WARN to show the query execution
> ctxt.commitChanges(Level.WARN);
>
>
>
> But when I run the above I get:
>
>
>
> java.lang.NullPointerException
> at
> org.objectstyle.cayenne.access.util.PrimaryKeyHelper.createPermIdsForOb
> jEntity(PrimaryKeyHelper.java:137)
> at
> org.objectstyle.cayenne.access.ContextCommit.createPrimaryKeys(ContextC
> ommit.java:517)
> at
> org.objectstyle.cayenne.access.ContextCommit.commit(ContextCommit.java:
> 139)
> at
> org.objectstyle.cayenne.access.DataContext.commitChanges(DataContext.ja
> va:725)
> at myPackage.MyServlet.doPost(FordXmlRec.java:70)
> at myPackage.MyServlet.doGet(FordXmlRec.java:53)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applic
> ationFilterChain.java:247)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFil
> terChain.java:193)
> at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperVal
> ve.java:243)
> at
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.j
> ava:566)
> at
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:
> 472)
> at
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
> at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextVal
> ve.java:190)
> at
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.j
> ava:566)
> at
> org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.j
> ava:246)
> at
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.j
> ava:564)
> at
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:
> 472)
> at
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
> at
> org.apache.catalina.core.StandardContext.invoke(StandardContext.java:23
> 47)
> at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.jav
> a:180)
> at
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.j
> ava:566)
> at
> org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherV
> alve.java:170)
> at
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.j
> ava:564)
> at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.jav
> a:170)
> at
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.j
> ava:564)
> at
> org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:46
> 8)
> at
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.j
> ava:564)
> at
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:
> 472)
> at
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
> at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve
> .java:174)
> at
> org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.j
> ava:566)
> at
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:
> 472)
> at
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
> at
> org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.
> java:1027)
> at
> org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java
> :1125)
> at java.lang.Thread.run(Thread.java:536)
>
> Can any one help me?, I´m really stuck with it.
>
> Thanks
>
> Adrián Marconetto
>
This archive was generated by hypermail 2.0.0 : Fri May 23 2003 - 19:38:27 EDT