I had meant for you to use both Customizers but I wasn't clear.
As it turns out my suggestion wouldn't have helped anyway as the Descriptor settings from the DescriptorCustomizer will not cause the sequence to be created before the session customizer is called so you will need to create the sequence through the SessionCustomizer as well.
public class SequenceCustomizer implements SessionCustomizer {
public void customize(Session session) throws Exception {
Sequence newSequence = new NativeSequence("OWNER_SEQ", 50, 10001);
session.getPlatform().addSequence(newSequence);
//might as well configure the descriptor as well
ClassDescriptor descriptor = session.getDescriptor(ModelBase.class);
descriptor.setSequenceNumberName("OWNER_SEQ");
descriptor.setSequenceNumberFieldName("number");
}
}
--Gordon
-----Original Message-----
From: sudhakar [mailto:sudhakar_at_co.brazos.tx.us]
Sent: Thursday, October 25, 2007 5:54 PM
To: persistence_at_glassfish.dev.java.net
Subject: Re: specifying sequence starting number in DescriptorCustomizer
Here is what I have now:
My entity class is as follows:
[begin code]
public class Owner extends ModelBase {
@Column(name = "number")
@SequenceGenerator(name = "OWNER_SEQ")
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator =
"OWNER_SEQ")
private int number;
}
[end code]
My SequenceCustomizer as as follows
[begin code]
public class SequenceCustomizer implements SessionCustomizer {
public void customize(Session session) throws Exception {
session.getDatasourcePlatform().getSequence("OWNER_SEQ")
.setInitialValue(10001);
}
}
[end code]
My persistence.xml has this
[begin code]
<property name="toplink.session.customizer"
value="brazos.permit.ejb.domain.internal.SequenceCustomizer" />
[end code]
Deployment fails with a NullPointerException in the getSequence() line
in SequenceCustomizer above.
Here is the stacktrace from the server.log file in glassfish when I
deploy the EJB application jar
[begin log]
----------------------------------------------------------------
[#|2007-10-25T16:46:17.988-0500|CONFIG|sun-appserver9.1|oracle.toplink.essentials.session.file:/E:/Java/glassfish/domains/domain1/applications/j2ee-modules/brazos.permit.ejb-1.0.0.v20071026/-permitPU.ejb_or_metadata|_ThreadID=17;_ThreadName=Timer-5;|The
primary key column name for the mapping element [private
brazos.permit.ejb.domain.User
brazos.permit.ejb.domain.ModelBase.createdByUser] is being defaulted to:
sys_id.|#]
at java.lang.reflect.Method.invoke(Method.java:597)
at
com.sun.enterprise.admin.MBeanHelper.invokeOperationInBean(MBeanHelper.java:375)
at
com.sun.enterprise.admin.MBeanHelper.invokeOperationInBean(MBeanHelper.java:358)
at
com.sun.enterprise.admin.config.BaseConfigMBean.invoke(BaseConfigMBean.java:464)
at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:836)
at
com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:761)
at sun.reflect.GeneratedMethodAccessor13.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
com.sun.enterprise.admin.util.proxy.ProxyClass.invoke(ProxyClass.java:90)
at $Proxy1.invoke(Unknown Source)
at
com.sun.enterprise.admin.server.core.jmx.SunoneInterceptor.invoke(SunoneInterceptor.java:304)
at
com.sun.enterprise.interceptor.DynamicInterceptor.invoke(DynamicInterceptor.java:174)
at
com.sun.enterprise.deployment.autodeploy.AutoDeployer.invokeDeploymentService(AutoDeployer.java:564)
at
com.sun.enterprise.deployment.autodeploy.AutoDeployer.deployJavaEEArchive(AutoDeployer.java:545)
at
com.sun.enterprise.deployment.autodeploy.AutoDeployer.deploy(AutoDeployer.java:492)
at
com.sun.enterprise.deployment.autodeploy.AutoDeployer.deployAll(AutoDeployer.java:267)
at
com.sun.enterprise.deployment.autodeploy.AutoDeployControllerImpl$AutoDeployTask.run(AutoDeployControllerImpl.java:374)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
Caused by: java.lang.NullPointerException
at
brazos.permit.ejb.domain.internal.SequenceCustomizer.customize(SequenceCustomizer.java:15)
at
oracle.toplink.essentials.internal.ejb.cmp3.EntityManagerSetupImpl.processSessionCustomizer(EntityManagerSetupImpl.java:990)
... 46 more
|#]
[#|2007-10-25T16:46:18.988-0500|FINE|sun-appserver9.1|javax.enterprise.system.tools.deployment|_ThreadID=17;_ThreadName=Timer-5;ClassName=com.sun.enterprise.deployment.backend.Deployer;MethodName=finish;_RequestID=39abedd3-860a-408e-8abe-eeca798731ad;|Total
Deployment Time: 4734 msec, Total EJB Compiler Module Time: 32 msec,
Portion spent EJB Compiling: 0%
Breakdown of EJBC Module Time: Total Time for EJBC: 32 msec, CMP
Generation: 0 msec (0%), Java Compilation: 0 msec (0%), RMI Compilation:
0 msec (0%), JAX-RPC Generation: 16 msec (50%),
|#]
[#|2007-10-25T16:46:18.988-0500|FINER|sun-appserver9.1|javax.enterprise.system.tools.deployment|_ThreadID=17;_ThreadName=Timer-5;ClassName=com.sun.enterprise.deployment.backend.Deployer;MethodName=finish;_RequestID=39abedd3-860a-408e-8abe-eeca798731ad;||#]
[#|2007-10-25T16:46:19.004-0500|SEVERE|sun-appserver9.1|javax.enterprise.system.tools.deployment|_ThreadID=17;_ThreadName=Timer-5;_RequestID=39abedd3-860a-408e-8abe-eeca798731ad;|Exception
occured in J2EEC Phase
com.sun.enterprise.deployment.backend.IASDeploymentException: Deployment
Errorjava.lang.NullPointerException --
Exception Description: Exception was thrown while processing property
[toplink.session.customizer] with value
[brazos.permit.ejb.domain.internal.SequenceCustomizer].
Internal Exception: java.lang.NullPointerException
at
oracle.toplink.essentials.exceptions.EntityManagerSetupException.failedWhileProcessingProperty(EntityManagerSetupException.java:196)
at
oracle.toplink.essentials.internal.ejb.cmp3.EntityManagerSetupImpl.processSessionCustomizer(EntityManagerSetupImpl.java:992)
at
oracle.toplink.essentials.internal.ejb.cmp3.EntityManagerSetupImpl.updateServerSession(EntityManagerSetupImpl.java:968)
-----------------------------------------------
[end log]
Gordon Yorke wrote:
> You will need a SessionCustomizer that allows you to customize the
> Sequences.
>
> _Persistence.xml entry:
> _<property name="toplink.session.customizer"
> value="mypackage.MySequenceCustomizer"/>
>
> _Customizer Class :_
> package mypackage;
> import oracle.toplink.essentials.sessions.Session;
>
> /**
> * PUBLIC:
> * This interface is to allow extra customization on a TopLink Session
> */
> public class MySequenceCustomizer extends SessionCustomizer {
> public void customize(Session session) throws Exception {
>
> session.getDatasourcePlatform().getSequence("OWNER_SEQ").setInitialValue(2);
> }
> }
>
> --Gordon
>
> -----Original Message-----
> *From:* sud [mailto:to_sud_at_yahoo.com]
> *Sent:* Sunday, October 21, 2007 9:18 PM
> *To:* persistence_at_glassfish.dev.java.net
> *Subject:* specifying sequence starting number in DescriptorCustomizer
>
> When using the following workaround for GeneratedValue on a non-id field, is it possible
> to specify the starting number in the sequence?
>
> [Quote]
> As a workaround you can enable this using the TopLink Essentials descriptor
> API. Specify a DescriptorCustomizer in your persistence.xml.
>
> public class MyDescriptorCustomizer implements DescriptorCustomizer {
> public void customize(ClassDescriptor descriptor) {
> descriptor.setSequenceNumberName("OWNER_SEQ");
> descriptor.setSequenceNumberFieldName("number");
> }
> }
> [Quote]
>
>
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