MS Access, Auto-Increment, Unsupported Operation Error
Hi All:
I am a beginner and I am working with CMP Entity Beans using Jboss, Lomboz Eclipse and MS Access 2000.
I read all your messages for solutions to Auto increment and tried to implement all those solutions and now I am getting a new error java.lang.UnsupportedOperationException .. and the entity bean could not be created
I am wondering if it is caused by the Auto INcrement
I am unable to attach files to this forum. I dont know why.. But I am posting the Debug messages of the JBOSS Server below
--------------------------
15:51:21,225 DEBUG [Attendance]
jar:file:/C:/Memorial/Jboss/jboss-3.2.1/server/all/tmp/deploy/server/all/deploy/IncomeMana
ger.jar/49.IncomeManager.jar!/META-INF/jbosscmp-jdbc.xml found. Overriding defaults
15:51:21,303 DEBUG [Attendance] Insert Entity SQL: INSERT INTO Attendance (AttendanceDate,
ChildID, ChildStatus, AbsenceReason, Breakfast, Lunch, Snack) VALUES (?, ?, ?, ?, ?, ?, ?)
15:51:21,303 DEBUG [Attendance] entity-command:
[commandName=get-generated-keys,commandClass=class
org.jboss.ejb.plugins.cmp.jdbc.jdbc3.JDBCGetGeneratedKeysCreateCommand,attributes={}]
15:51:21,303 DEBUG [Attendance] Remove SQL: DELETE FROM Attendance WHERE AttendanceID=?
15:51:21,303 INFO [Attendance] Table 'Attendance' already exists
15:51:21,303 DEBUG [findByPrimaryKey] SQL: SELECT AttendanceID FROM Attendance WHERE
AttendanceID=?
15:51:21,303 DEBUG [Attendance] Added findByPrimaryKey query command for home interface
15:51:21,303 DEBUG [findByPrimaryKey] SQL: SELECT AttendanceID FROM Attendance WHERE
AttendanceID=?
15:51:21,303 DEBUG [Attendance] Added findByPrimaryKey query command for local home
interface
15:51:21,303 DEBUG [findAll] EJB-QL: SELECT OBJECT(a) FROM myAttendance as a
15:51:21,303 DEBUG [findAll] SQL: SELECT t0_a.AttendanceID FROM Attendance t0_a
15:51:21,303 DEBUG [findByAttendanceDate] EJB-QL: SELECT OBJECT(a) FROM myAttendance a
where a.attendanceDate = ?1
15:51:21,319 DEBUG [findByAttendanceDate] SQL: SELECT t0_a.AttendanceID FROM Attendance
t0_a WHERE t0_a.AttendanceDate = ?
15:51:21,319 DEBUG [findByAttendanceDate] EJB-QL: SELECT OBJECT(a) FROM myAttendance a
where a.attendanceDate = ?1
15:51:21,319 DEBUG [findByAttendanceDate] SQL: SELECT t0_a.AttendanceID FROM Attendance
t0_a WHERE t0_a.AttendanceDate = ?
15:51:21,319 DEBUG [findAll] EJB-QL: SELECT OBJECT(a) FROM myAttendance as a
15:51:21,319 DEBUG [findAll] SQL: SELECT t0_a.AttendanceID FROM Attendance t0_a
15:51:21,319 INFO [EntityInstancePool] Starting
15:51:21,319 INFO [EntityInstancePool] Started
15:51:21,319 INFO [EntityContainer] Started
15:51:21,319 INFO [StatelessSessionContainer] Starting
15:51:21,350 INFO [StatelessSessionInstancePool] Starting
15:51:21,350 INFO [StatelessSessionInstancePool] Started
15:51:21,350 INFO [StatelessSessionContainer] Started
15:51:21,350 INFO [EjbModule] Started
15:51:21,350 INFO [EJBDeployer] Deployed:
file:/C:/Memorial/Jboss/jboss-3.2.1/server/all/deploy/IncomeManager.jar
15:51:21,381 INFO [MainDeployer] Deployed package:
file:/C:/Memorial/Jboss/jboss-3.2.1/server/all/deploy/IncomeManager.jar
15:51:53,553 INFO [STDOUT] Entering ejbCreate()
15:51:53,569 INFO [STDOUT] Leaving ejbCreate()
15:51:53,584 INFO [STDOUT] Entering ejbCreate()
15:51:53,584 INFO [STDOUT] 2003-10-17
15:51:53,584 INFO [STDOUT] Leaving ejbCreate()
15:51:53,584 DEBUG [Attendance] Executing SQL: INSERT INTO Attendance (AttendanceDate,
ChildID, ChildStatus, AbsenceReason, Breakfast, Lunch, Snack) VALUES (?, ?, ?, ?, ?, ?, ?)
15:51:53,584 ERROR [Attendance] Could not create entity
java.lang.UnsupportedOperationException
at sun.jdbc.odbc.JdbcOdbcConnection.prepareStatement(JdbcOdbcConnection.java:1750)
at
org.jboss.resource.adapter.jdbc.WrappedConnection.prepareStatement(WrappedConnection.java:
293)
-----------------------
Also my jbosscmp-jdbc.xml file is as below
-------------
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE jbosscmp-jdbc PUBLIC '-//JBoss//DTD JBOSSCMP-JDBC 3.2//EN' 'http://www.jboss.org/j2ee/dtd/jbosscmp-jdbc_3_2.dtd'>
<jbosscmp-jdbc>
java:/MSAccessmemorialDS
<datasource-mapping>MSAccess</datasource-mapping>
<preferred-relation-mapping>foreign-key</preferred-relation-mapping>
<enterprise-beans>
<!--
To add beans that you have deployment descriptor info for, add
a file to your XDoclet merge directory called jbosscmp-jdbc-beans.xml
that contains the markup for those beans.
-->
<ejb-name>Attendance</ejb-name>
<table-name>Attendance</table-name>
<cmp-field>
<field-name>attendanceID</field-name>
<column-name>AttendanceID</column-name>
<auto-increment/>
</cmp-field>
<cmp-field>
<field-name>attendanceDate</field-name>
<column-name>AttendanceDate</column-name>
</cmp-field>
<cmp-field>
<field-name>childID</field-name>
<column-name>ChildID</column-name>
</cmp-field>
<cmp-field>
<field-name>childStatus</field-name>
<column-name>ChildStatus</column-name>
</cmp-field>
<cmp-field>
<field-name>absenceReason</field-name>
<column-name>AbsenceReason</column-name>
</cmp-field>
<cmp-field>
<field-name>breakfast</field-name>
<column-name>Breakfast</column-name>
</cmp-field>
<cmp-field>
<field-name>lunch</field-name>
<column-name>Lunch</column-name>
</cmp-field>
<cmp-field>
<field-name>snack</field-name>
<column-name>Snack</column-name>
</cmp-field>
<entity-command name="get-generated-keys" class="org.jboss.ejb.plugins.cmp.jdbc.jdbc3.JDBCGetGeneratedKeysCreateCommand">
</entity-command>
</enterprise-beans>
</jbosscmp-jdbc>
-------------------
and my ejbcreate() for the entity bean is
-----------------------------
public java.lang.Integer ejbCreate(java.sql.Date attDate,java.lang.Integer chID,java.lang.String chStatus,java.lang.String absReason, java.lang.String b, java.lang.String l, java.lang.String s) throws javax.ejb.CreateException {
// EJB 2.0 spec says return null for CMP ejbCreate methods.
// TODO: YOU MUST INITIALIZE THE FIELDS FOR THE BEAN HERE.
// setMyField("Something");
System.out.println("Entering ejbCreate()");
log.debug("ejbCreate '" + attDate + "' "+ chID+", version="+VERSION);
System.out.println(attDate.toString());
setAttendanceID(new Integer(0)) ;
setAttendanceDate(attDate);
setChildID(chID);
setChildStatus(chStatus);
setAbsenceReason(absReason);
setBreakfast(b);
setLunch(l);
setSnack(s);
System.out.println("Leaving ejbCreate()");
return null;
}
-------------------
Kindly go thru the code and help me Please!
Thanks
Nithya