I met a strange question.


I have two class:

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<class name="rr.Chassis" table="CHASSIS">

<!-- A 32 hex character is our surrogate key. It's automatically
generated by Hibernate with the UUID pattern. -->
<id name="serialNumber" type="string" unsaved-value="null" >
<column name="SERIAL_NUMBER" sql-type="char(32)" not-null="true"/>
<generator class="uuid.hex"/>
</id>

<!-- A cat has to have a name, but it shouldn' be too long. -->
<property name="ip">
<column name="IP" sql-type="varchar(16)" not-null="true"/>
</property>

<set name="serverBlades" cascade="all" inverse="true" lazy="true">
<key column="SERIAL_NUMBER"/>
<one-to-many class="rr.ServerBlade"/>
</set>

</class>

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<class name="rr.ServerBlade" table="SERVERBLADE">

<!-- A 32 hex character is our surrogate key. It's automatically
generated by Hibernate with the UUID pattern. -->
<id name="serialNumber" type="string" unsaved-value="null" >
<column name="SERIAL_NUMBER" sql-type="char(32)" not-null="true"/>
<generator class="uuid.hex"/>
</id>

<!-- A cat has to have a name, but it shouldn' be too long. -->
<property name="ip">
<column name="IP" sql-type="varchar(16)" not-null="true"/>
</property>

<property name="mac1"/>

<property name="mac2"/>

<property name="slot"/>

<many-to-one name="chassis" class="rr.Chassis" column="SERIAL_NUMBER"/>

</class>
----------------------------------------------------------------------------------

when i execute the following code:
sessionFactory = new Configuration().configure().buildSessionFactory();
session = sessionFactory.openSession();
transaction = session.beginTransaction();

Chassis chassis = new Chassis();
chassis.setIp("10.3.1.125");
session.save(chassis);

ServerBlade sb = new ServerBlade();

sb.setChassis(chassis);
sb.setMac1("mac1");
sb.setMac2("mac2");
sb.setSlot("1");
sb.setIp("10.3.1.125");
session.save(sb);

transaction.commit(); // thrown ArrayIndexOutOfBoundsException
session.close();

-----------------------------------------------------------------------------------
The following error message occurs:

java.lang.ArrayIndexOutOfBoundsException: 5
at com.mysql.jdbc.PreparedStatement.setInternal(PreparedStatement.java:1955)
at com.mysql.jdbc.PreparedStatement.setString(PreparedStatement.java:1120)
at net.sf.hibernate.type.StringType.set(StringType.java:22)
at net.sf.hibernate.type.NullableType.nullSafeSet(NullableType.java:45)
at net.sf.hibernate.type.NullableType.nullSafeSet(NullableType.java:30)
at net.sf.hibernate.persister.EntityPersister.dehydrate(EntityPersister.java:367)
at net.sf.hibernate.persister.EntityPersister.insert(EntityPersister.java:444)
at net.sf.hibernate.impl.ScheduledInsertion.execute(ScheduledInsertion.java:20)
at net.sf.hibernate.impl.SessionImpl.executeAll(SessionImpl.java:2063)
at net.sf.hibernate.impl.SessionImpl.execute(SessionImpl.java:2035)
at net.sf.hibernate.impl.SessionImpl.flush(SessionImpl.java:1979)
at net.sf.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:56)
at com.threeup.phoenix.rr.AddChassis.endTransaction(AddChassis.java:91)
at com.threeup.phoenix.rr.AddChassis.performExecute(AddChassis.java:41)
at com.threeup.phoenix.action.PhoenixAction.execute(PhoenixAction.java:64)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:480)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1420)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:502)
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(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:594)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:392)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:619)
at java.lang.Thread.run(Thread.java:536)

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mysql version is 4.0.15-max-nt, JDBC driver is 3.0.8. hibernate version is
2.0.2

You need to use insert="false" update="false" on repeated column mappings. The latest version of Hibernate will catch this for you.

i m learing hibernate start ,but where modify this?