Deploy Toplink 9.0.3 Entity beans with JDEV9.0.3 and oc4j9.0.3

Hi,
I created Entity beans using the toplink mapping tool
and now I'm trying to compile them in Jdev 9.0.3 and to deploy in OC4j 9.0.3. Unfortunately I
couldn't find any info on how to do this.
Can anyone please reply as soon as possible ?

TopLink does not support Container Managed Persistence (CMP) with OC4J in 9.0.3. Our 10.0.3 developer preview offers this support.
Was it CMP or BMP you were trying to use. If it is BMP there is an example of using TopLink with OC4J shipped with TopLink.
Doug

Similar Messages

  • Error While Deploying A CMP Entity Bean With A Composite Primary Key

    Hello all,
    I have a problem deploying CMP Entity beans with composite primary keys. I have a CMP Entity Bean, which contains a composite primary key composed of two local stubs. If you know more about this please respond to my post on the EJB forum (subject: CMP Bean Local Stub as a Field of a Primary Key Class).
    In the mean time, can you please tell me what following error message means and how to resolve it? From what I understand it might be a problem with Sun ONE AS 7, but I would like to make sure it's not me doing something wrong.
    [05/Jan/2005:12:49:03] WARNING ( 1896):      Validation error in bean CustomerSubscription: The type of non-static field customer of the key class
    test.subscription.CustomerSubscriptionCMP_1530383317_JDOState$Oid must be primitive or must implement java.io.Serializable.
         Update the type of the key class field.
         Warning: All primary key columns in primary table CustomerSubscription of the bean corresponding to the generated class test.subscription.CustomerSubscriptionCMP_1530383317_JDOState must be mapped to key fields.
         Map the following primary key columns to key fields: CustomerSubscription.CustomerEmail,CustomerSubscription.SubscriptionType. If you already have fields mapped to these columns, verify that they are key fields.Is it enough that a primary key class be serializable or all fields have to implement Serializable or be a primitive?
    Please let me know if you need more information to answer my question.
    Thanks.
    Nikola

    Hi Nikola,
    There are several problems with your CMP bean.
    1. Fields of a Primary Key Class must be a subset of CMP fields, so yes, they must be either a primitive or a Serializable type.
    2. Sun Application Server does not support Primary Key fields of an arbitrary Serializable type (i.e. those that will be stored
    as BLOB in the database), but only primitives, Java wrappers, String, and Date/Time types.
    Do you try to use stubs instead of relationships or for some other reason?
    If it's the former - look at the CMR fields.
    If it's the latter, I suggest to store these fields as regular CMP fields and use some other value as the PK. If you prefer that
    the CMP container generates the PK values, use the Unknown
    PrimaryKey feature.
    Regards,
    -marina

  • Bad Performance/OutOfMemory Error in CMP Entity Bean with Large DB

    Hello:
    I have an CMP Entity deployed on WLS 7.0
    The entity bean maps to a table that has 97,480 records.
    It has a finder: findAll() -- SELECT OBJECT(e) FROM Equipment e
    I have a JSP client that invokes the findALL()
    The performance is very poor ~ 150 seconds just to perform the findAll() - (Benchmark
    from within the JSP code)
    If more than one simultaneous call is made then I get outOfMemory Error.
    WLS is started with max memory of 512MB
    EJB is deployed with <max-beans-in-cache>100000</max-beans-in-cache>
    (without max-beans-in-cache directive the performance is worse)
    Is there any documentation available to help us in deploying CMP Entity Beans
    with very large number of records (instances) ?
    Any help is greatly appreciated.
    Regards
    Rajan

    Hi
    You should use a Select Method, it does support cursors.
    Or a Home Select Method combination.
    Regards
    Thomas
    WLS is started with max memory of 512MB
    EJB is deployed with <max-beans-in-cache>100000</max-beans-in-cache>>
    (without max-beans-in-cache directive the performance is worse)>
    Is there any documentation available to help us in deploying CMP
    Entity Beans with very large number of records (instances) ? Any help
    is greatly appreciated.>
    Regards>
    Rajan>
    >
    "Rajan Jena" <[email protected]> schrieb im Newsbeitrag
    news:3dadd7d1$[email protected]..
    >
    Hello:
    I have an CMP Entity deployed on WLS 7.0
    The entity bean maps to a table that has 97,480 records.
    It has a finder: findAll() -- SELECT OBJECT(e) FROM Equipment e
    I have a JSP client that invokes the findALL()
    The performance is very poor ~ 150 seconds just to perform the findAll() -(Benchmark
    from within the JSP code)
    If more than one simultaneous call is made then I get outOfMemory Error.
    WLS is started with max memory of 512MB
    EJB is deployed with <max-beans-in-cache>100000</max-beans-in-cache>
    (without max-beans-in-cache directive the performance is worse)
    Is there any documentation available to help us in deploying CMP EntityBeans
    with very large number of records (instances) ?
    Any help is greatly appreciated.
    Regards
    Rajan

  • CMP Entity Bean with ejb-ql finder methods and INFORMIX database

    Hi,
    I have some CMP Entity Beans with finder methods defined in ejb-ql. In my ejb-jar, within <entity> definitions I have something like:
        <entity>
          <abstract-schema-name>BeanName</abstract-schema-name>
          <cmp-field><field-name>fieldOne</field-name></cmp-field>
          <cmp-field><field-name>fieldTwo</field-name></cmp-field>
          <query>
            <query-method>
              <method-name>findAll</method-name>
              <method-params></method-params>
            </query-method>
            <ejb-ql>SELECT OBJECT(o) FROM BeanName o</ejb-ql>
          </query>
        <entity>
    And in persistent.xml:
    <db-properties>
         <data-source-name>datasource_name</data-source-name>
    </db-properties>
    <entity-bean>
         <ejb-name>BeanName</ejb-name>
         <table-name>table_name</table-name>
         <field-map key-type="NoKey">
         <field-name>fieldOne</field-name>
         <column><column-name>column_one</column-name></column>
          </field-map>
         <field-map key-type="NoKey">
         <field-name>fieldTwo</field-name>
         <column><column-name>column_two</column-name></column>
          </field-map>
          <finder-descriptor>
              <method-name>findAll</method-name>
              <method-params/>
         </finder-descriptor>
    Once deployed, on server side, I can found a java source file (with corresponding compiled class file) in path:
    j2ee/cluster/server0/apps/companyName/MyEARApp/EJBContainer/temp/temp38837373733/route/to/package/
    with names:
    BeanName0_0pm.java
    BeanName0_0PM.class
    and the generated java file contains this code:
      public java.util.Enumeration ejbFindAll() throws javax.ejb.FinderException, javax.ejb.EJBException  {
        TransactionContext tc = pm.getTransactionContext();
        Connection conn = null;
        PreparedStatement pSt = null;
        ResultSet ejb_rs = null;
        int status = javax.transaction.xa.XAResource.TMSUCCESS;
        try {
          conn = pm.getConnectionForFindMethod();
          pSt = conn.prepareStatement("SELECT \"O\".\"COLUMN_ONE\",\"O\".\"COLUMN_TWO\", FROM \"TABLE_NAME\" \"O\"");
          ejb_rs = pSt.executeQuery();
    I'm trying to call this method but it throws a SQLException when preparing the statement.
    It seems that Informix does not like this SQL syntax because of upper case names, doble quotes on table alias, or something else.
    When editing persistent.xml in netweaver, I can define the element <datasource-vendor> as ORACLE, SAPDB, MS_SQL_SERVER, DB2_UDB_AS400 or DB2_UDB_OS390 but INFORMIX is not an accepted value.
    Is there any way to define how this SQL query is build?
    Thanks in advance.

    The return type of the finder method defined in the remote home interface is either the entity bean's remote interface or a collection of objects implementing the entity bean's remote interface. The return type of the finder method defined in the local home interface is either the entity bean's local interface or a collection of objects implementing the entity bean's local interface

  • BMP-/CMP-Entity Beans with JBoss 3.0 & MySQL 3.23

    Hi @all!
    Sorry, I`m a beginner in development of EJBs, but I`ve got already two of them (a session bean, a cmp-bean with Hypersonic DB) running.
    Now my question:
    Is it possible to develop bmp- or cmp-beans with JBuilder 6.0 and AppServer JBoss 3.0 and MySQL as relational database.
    If anybody here, has ever done this.
    Please contact for one or two short questions like:
    What will I have to do to get MySQL as persistence medium in JBoss?
    What will I have to do to get MySQL by a bmp-entity-bean over JNDI?
    What will I have to do to run my program? ;-)
    I�m always getting error messages like:
    ...no such entity...
    Or:
    ...MyDB not bound...
    Thanks
    Michael

    Now, I`ve done a little step in the right direction:
    It is possible to create CMP-Beans with JBoss 3.0 and MySQL database.
    You just have to put both on the same machine ;-) (Incredible...)
    But now I`ve got problems to implement a bean-managed-persistence Bean with JBoss 3.0 and mySQL.
    If I start my client application, I get the following error messages, although my EJB is correctly deployed:
    -- I`m calling: create(17, max, [email protected])
    java.rmi.ServerException: RemoteException occurred in server thread; nested exception is:
         java.rmi.ServerException: null
    Embedded Exception
    null; nested exception is:
         javax.ejb.EJBException: null
    Embedded Exception
    null
         at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:292)
         at sun.rmi.transport.Transport$1.run(Transport.java:148)
         at java.security.AccessController.doPrivileged(Native Method)-- Erfolglos: create(17, max, [email protected])
         at sun.rmi.transport.Transport.serviceCall(Transport.java:144)
         at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
         at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
         at java.lang.Thread.run(Thread.java:536)
         at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:250)
         at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:226)
         at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:136)
         at org.jboss.invocation.jrmp.server.JRMPInvoker_Stub.invoke(Unknown Source)
         at org.jboss.invocation.jrmp.interfaces.JRMPInvokerProxy.invoke(JRMPInvokerProxy.java:128)
         at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:108)
         at org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:73)
         at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:76)
         at org.jboss.proxy.ejb.HomeInterceptor.invoke(HomeInterceptor.java:185)
         at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:76)
         at $Proxy0.create(Unknown Source)
         at gaestebuch.BMPTestClient.create(BMPTestClient.java:71)
         at gaestebuch.BMPTestClient.main(BMPTestClient.java:309)
    Caused by: java.rmi.ServerException: null
    Embedded Exception
    null; nested exception is:
         javax.ejb.EJBException: null
    Embedded Exception
    null
         at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:119)
         at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:167)
         at org.jboss.ejb.plugins.TxInterceptorCMT.invokeHome(TxInterceptorCMT.java:52)
         at org.jboss.ejb.plugins.SecurityInterceptor.invokeHome(SecurityInterceptor.java:104)
         at org.jboss.ejb.plugins.LogInterceptor.invokeHome(LogInterceptor.java:109)
         at org.jboss.ejb.EntityContainer.invokeHome(EntityContainer.java:487)
         at org.jboss.ejb.Container.invoke(Container.java:726)
         at org.jboss.ejb.EntityContainer.invoke(EntityContainer.java:1055)
         at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:491)
         at org.jboss.invocation.jrmp.server.JRMPInvoker.invoke(JRMPInvoker.java:362)
         at sun.reflect.GeneratedMethodAccessor29.invoke(Unknown Source)
         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
         at java.lang.reflect.Method.invoke(Method.java:324)
         at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:261)
         at sun.rmi.transport.Transport$1.run(Transport.java:148)
         at java.security.AccessController.doPrivileged(Native Method)
         at sun.rmi.transport.Transport.serviceCall(Transport.java:144)
         at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
         at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
         at java.lang.Thread.run(Thread.java:536)
    Caused by: javax.ejb.EJBException: null
    Embedded Exception
    null
         at org.jboss.ejb.plugins.BMPPersistenceManager.createEntity(BMPPersistenceManager.java:246)
         at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.createEntity(CachedConnectionInterceptor.java:270)
         at org.jboss.ejb.EntityContainer.createHome(EntityContainer.java:728)
         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:324)
         at org.jboss.ejb.EntityContainer$ContainerInterceptor.invokeHome(EntityContainer.java:1116)
         at org.jboss.ejb.plugins.EntitySynchronizationInterceptor.invokeHome(EntitySynchronizationInterceptor.java:257)
         at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invokeHome(CachedConnectionInterceptor.java:215)
         at org.jboss.ejb.plugins.EntityInstanceInterceptor.invokeHome(EntityInstanceInterceptor.java:134)
         at org.jboss.ejb.plugins.EntityLockInterceptor.invokeHome(EntityLockInterceptor.java:79)
         at org.jboss.ejb.plugins.EntityCreationInterceptor.invokeHome(EntityCreationInterceptor.java:44)
         at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:98)
         ... 19 more
    -- return of create(17, max, [email protected]): null.
    What is my mistake?
    Thanks, Michael

  • Multiple users accessing entity bean with same PK

    Hi,
    Some body please clarify the below issue.
    (EJB 1.1, WAS3.5)
    I have two app servers and two clones each clone is running in each app server.
    Stateful session bean access Entity beans to update/read record in the database.
    According to my requirement multiple users can access the same entity data (same primary key). Suppose user A created a Stateful session bean SB1 and the SB1 created Entity1 with PK1, this is happening at clone1.
    User B accessed the site and the request went to Clone2 and a new SB2 created, but the SB2 need to access the database with Same PK1.
    For the above situation, I guess container can not create a new Entity bean with PK1 because EB with PK1 is already there and it tries to allocate same EB1 with SB2, so if two requests are concurrent do the SB2 wait to get the handle of the EB1?
    Is there any way to create two Entity beans with same Primary Key at the same time but in different clone?
    Thanks,
    Sagar

    Hi,
    The concurrency level has to be set at the level of database and the database will take care of consistency & integrity of the data. So specity the concurrency level on the database connection in each appserver.

  • Is it possible to map the cmp fields of the entity bean with out dictionary

    Dear sirs,
    I have created the EJB project module and WEB Module. Now i have to map the CMP fields of the entity bean to the underlying table. Is it possible to map the cmp fields of the entity bean with out java dictionary? If yes how can we do that.
    I have got some error while mapping an EJB's CMP fields to the table through dictionary. I was actually intended to map 79 fields but it gives an error that more than 64 fields are not allowed while building the dictionary.
    1. Can you tell me what could be the possible reason?
    2. Is it possible to map the cmp fields of the entity bean with out java dictionary? If yes how can we do that.
    Kindly helo me,
    Sudheesh K S

    Hi,
    Sudheesh please check up if the below link helps,there are other ways of writing the persistent.xml for container managed entity bean.
    http://help.sap.com/saphelp_nw04s/helpdata/en/9b/f695f0c84acf46a4e0b31f69d8a9b7/frameset.htm, probably in the studio you cannot browse through tables not in  the java dictionary,but manually editing it may still solve the problem.
    Also here is another link that specifies the databases supported by J2EE Engine.
    http://help.sap.com/saphelp_nw04s/helpdata/en/66/a5283eeb47b40be10000000a114084/frameset.htm
    The below link shows how to specify the database vendor and datasource
    http://help.sap.com/saphelp_nw04s/helpdata/en/e1/67fc3ee241ba28e10000000a114084/frameset.htm
    Hope you are able to solve the problem.
    Do let us know if you come up with the solution.
    Regards,
    Harish
    Message was edited by: HARISH SUBRAMANIAN

  • Creating entity beans with auto numbered primary key

    I have two entity bean with a CMR between them. I am successfully creating the first one but when I try and create the child entity bean I get a NullPointerException.
    Now I think this is because the gernerated code tries to get the primary key of the created entity bean and this is not set as it is set using a auto number in the database (An oracle sequence and trigger).
    Is there anyway i can get round this problem?
    Thanks in advance,
    Adrian

    This is the auto generated code:
         public dmd.sync.ejbs.entity.AppliancePackInfoLocal create_Local(dmd.sync.dataobjects.dto.AppliancePackInfoDTO appliancePackInfoDTO, dmd.sync.ejbs.entity.AmppLocal amppLocal) throws javax.ejb.CreateException, java.rmi.RemoteException {
              BeanO beanO = null;
              dmd.sync.ejbs.entity.AppliancePackInfoLocal result = null;
              boolean createFailed = false;
              boolean preCreateFlag = false;
              try {
                   beanO = super.createBeanO();
                   dmd.sync.ejbs.entity.AppliancePackInfoBean bean = (dmd.sync.ejbs.entity.AppliancePackInfoBean) beanO.getEnterpriseBean();
                   preCreateFlag = super.preEjbCreate(beanO);
                   bean.ejbCreate(appliancePackInfoDTO, amppLocal);
                   Object ejsKey = keyFromBean(bean);
                   result = (dmd.sync.ejbs.entity.AppliancePackInfoLocal) super.postCreate_Local(beanO, ejsKey, true);
                   bean.ejbPostCreate(appliancePackInfoDTO, amppLocal);
                   super.afterPostCreate(beanO, ejsKey);
    It must be falling over on the last line as it calls the ejbPostCreate fine.

  • Entity bean with primary key generated by trigger

    Hi,
    We have a table(oracle) with one column as primary key,
    but the primary key is generated by trigger every time
    a new row is inserted into this table, inside the trigger,
    it uses oracle sequence to get the next val.
    If we want to use entity bean with it, what should we specify, it's not application-managed primay key, it's
    not auto-generated primary key either. How can we resolve
    it without change the database part.
    Any thought is appreciated.
    Thanks
    afang

    The code is already there with JDBC call inserting
    into the table, the inserting trigger then will generate
    sequence key and being inserted into primary key column.
    Now wondering if it's possible to change the code to use entity bean but without modifying the trigger (since it contains other business logics).

  • Can Entity Bean with Home Business Method replace Stateless Session Bean?

    Since Entity Bean can have business methods in the Home Interface, can we use Entity Bean with Home Business Methods to replace Stateless Session Bean?
    I am assuming we can get better performance by doing this since the overhead of creating Component Object can be avoided as compared to stateless session beans.

    Requires-new makes the container start a new transaction. Only use that flag
              at the point that you are certain that a NEW transaction should BEGIN. I
              suggest you use Required as your default for all methods in the application,
              and only change that to anything else when you are certain that you should.
              Peace,
              Cameron Purdy
              Tangosol Inc.
              << Tangosol Server: How Weblogic applications are customized >>
              << Download now from http://www.tangosol.com/download.jsp >>
              "A.J,LEE" <[email protected]> wrote in message
              news:3ba5adb2$[email protected]..
              >
              > I find it result in "dead lock"
              > when I call RequiresNew attributed CMP method in session Bean.
              > Then, Is it possible to use CMP which is set with "RequiresNew"
              transaction attribute?
              >
              > I Wonder why.
              >
              > Thanx in advance.
              

  • Did elationship fields in entity bean with CMP same as foreign key in table

    did elationship fields in entity bean with CMP same as foreign key in table database.so we don't have to make some foreign key column in table database.
    did Container handle that both.
    I need some answer
    thank's

    Suppose you have Group and user entity. Relation is 1-m. One group many users. When you create user, you dont need to send group id, All you need is create user and add it in collection (cmr-field) in group(user belongs to). Container will add its group id in user entity as well as in db.

  • Do I need to Create Primary Key Class for Entity beans with Local interface

    Do I need to Create Primary Key Class for Entity beans with Local interface?
    I have created my entity bean with the wizard in Sun One Studio and it does not create a primary key class for you.
    I thought that the primary key class was required. My key is made up of only one field.
    Anyone know the answer.
    Jim

    u dont need to create a primary key class for a entity bean.if ur table's primary key feild(int ,float) is a built in or primitive data type,then u dont need one.But if ur table has a primary key field which is non primitive (for example StudentID,ItemID etc)then u have to create a primary key class.
    hope this helps :-)

  • Deploying BMP Entity Bean with primary key calss

    Hi,
    I am using EJB 2.0 with and websphere studio 5.0 and database is sql server 2000.
    My BMP Entity bean has a primary key class.From my client I am invoking the Entity Bean by calling it's findbyprimarykey method.
    The home interface of my findbyprimarykey method returns a class of type Remote.But in the Entity Bean class,the return type is the primarykey class type.
    My problem is invoking this findbyprimarykey from the client to get the remote interface so that the other business methods of the entity bean can be called.
    The control goes into the ejbFindbyPrimaryKey but when it is returing from the Entity Bean class,it gives a remote exception (as the return type in Entity Bean class and Home interface are different for the findbyprimarykey method).
    I think that somewhere in the deployment decriptor in my websphere,i have to specify the primarykey class type,which i am missing out and hence getting the error.
    Please help me out with your advice and solution.
    Thanks
    Rahul Priyadarshi

    Hi,
    Sorry to disturb you again.
    Even my code is also almost the same....i am pasting the code below...Please go through it and let me know if I have made any mistake..
    EditVendorEntityBean.....(Bean Class)
    package code.beans.EditVendor;
    import code.beans.dataAccess.*;
    import javax.ejb.CreateException;
    import javax.ejb.RemoveException;
    import javax.ejb.EntityBean;
    import javax.ejb.EntityContext;
    import javax.ejb.EJBException;
    import javax.ejb.FinderException;
    import javax.ejb.ObjectNotFoundException;
    import javax.naming.Context;
    import javax.naming.InitialContext;
    import javax.naming.NamingException;
    import java.sql.*;
    import javax.sql.*;
    import java.util.*;
    * Bean implementation class for Enterprise Bean: EditVendorEntity
    public class EditVendorEntityBean implements javax.ejb.EntityBean {
         private static Hashtable dataSources = new Hashtable();
         private String username;
    private int Vendor_ID;
    private int Category_Id;
    private String Category_Name;
    private String Vendor_Name;
    private String Vendor_Address1;
    private String Vendor_Address2;
    private String Contact_Name;
    private String Home_Phone;
    private String Work_Phone;
    private String email;
    private String faxno;
    private String userloginname;
    private boolean dirtyFlag = false;
    private EntityContext context;
    private static final String DS_NAME = "jdbc/spiPOPS";
    Connection con = null;
    Statement stmt = null;
    PreparedStatement st = null;
    ResultSet res = null;
         //***********************Business Methods*********************
    // Begin of Busines Methods
    public void setData (String[] catname, String vendorname,String vendadd1,String vendadd2,String vendcontact,String venoff,String venres,String mailid,String venfax) {
              System.out.println("in setData where Vendor Id= "+ Vendor_ID);
                   boolean status=false;
                   boolean existing=false;
                   ArrayList cat=new ArrayList();
                   try
                        cat=getcategorylist(this.Vendor_ID);
                   catch(SQLException e)
                        System.out.println("Could not get category list");
                   System.out.println("Size of cat array -->" + cat.size() + " and string array size -->" + catname.length);
                   if(catname.length>0)
                        //Removing unwanted vendor categories for a particular vendor id
                        for(int i=0;i<cat.size();i++)
                                  existing=false;
                                  String tempdata=(String)cat.get(i);
                                  for(int j=0;j<catname.length;j++)
                                       if(tempdata.equals(catname[j]))
                                            existing=true;
                                  if(!existing)
                                       try
                                            delvencat(this.Vendor_ID,tempdata.trim());
                                       catch(SQLException e)
                                            System.out.println("Could not delete record in POPS_VENDOR_CATEGORY for -->" + tempdata);
                   //Adding new vendor categories for a particular vendor
                        try
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