EJB Entity transaction rollback problem

Question

          Hello,
          I have created 2 beans one is a Stateless Session and the other a Bean Managed Entity Bean. The SS Bean has methods to retrieve an Oracle Connection from a DataSource defined connection pool, and to close a connection. The entity bean I have created is responsible for insterting a new record into one of the tables in my database.
          I have a client app that calls the ejbCreate method on the entity bean at which point the Entity EJB takes control, gets a valid connection from the SS EJB, runs a simple working SQL SELECT statement (obtaining correct values), and then attempts to perform an insert into a table using a prepared statement. My problem is that the application runs fine without any errors and all calls are made and all calls seem to be working fine. I have checked to make sure that the Datasource I am using is AutoCommit= false and it is and there are no exceptions being thrown in my EJB's but yet it appears as though the SQL statements executeUpdate() command is not being committed as their is no rows created in the database. Does anyone know what I may be doing wrong. I have all ACL parameters set up correctly and as I stated before the entire app runs without errors and I do have a SELECT statment that is working properly within the same method as the INSERT statement which is not!!! Please send any suggestions!!
          Justin
          

Answer 1

          I am using CMT, it is activated by default on Entity Beans I believe. The bean itself is marked as TX_REQUIRED so I believe all the methods automatically are all TX_REQUIRED.
          Here is my Bean ejbCreate Method, My PK class, and my ejb-jar.xml file-- I've pasted them below for convenience.
          ejbCreate:
               public CustomerPK ejbCreate(String aUserName, String aPassword, String aFirstName,
                    String aMiddleInit, String aLastName, String aEmailAddr)
                    throws javax.ejb.CreateException {
               Connection conn=null;
               long nextPrsnID;
               long nextCustID;
               if (verifyParams(aUserName, aPassword, aFirstName, aMiddleInit,
                    aLastName, aEmailAddr)) {
               if (isUniqueUserName(aUserName)) {
               try {
                    conn=getConnection();
                    conn.setAutoCommit(false);
                    nextPrsnID=addPerson(conn,aFirstName,aMiddleInit,aLastName); // adds a person to the person table consists of just simple SQL
                    nextCustID=addCustomer(conn,nextPrsnID, aUserName,aPassword, aEmailAddr); //adds a customer to the customer table
                    // SET THE BEAN MANAGED PUBLIC VARIABLES
                    this.userName=aUserName;
                    this.password=aPassword;
                    this.firstName=aFirstName;
                    this.middleInit=aMiddleInit;
                    this.lastName=aLastName;
                    this.emailAddr=aEmailAddr;
                    this.personID=nextPrsnID;
                    this.custID=nextCustID;
                    conn.commit(); // with this statement here the transaction goes through otherwise the DB will not be updated
               catch (Exception e){
                    throw new javax.ejb.CreateException("Experiencing Database Problems-- Unrecoverable Error"); // rollback transaction
               finally{
                    cleanup(conn,null); // close the connection
               else {           // UserName already exists
               throw new javax.ejb.CreateException("Sorry username already exists please choose another one");
               else {          // Registration parameters were not verifiable
               throw new javax.ejb.CreateException("Registration paramater rules were violated");
               CustomerPK custPK=new CustomerPK(nextCustID);
               return custPK;
          EJB CUSTOMER PRIMARY KEY CLASS:
          public class CustomerPK implements java.io.Serializable {
          // PRIMARY KEY VARIABLES
          public long CustomerID;
          public CustomerPK(long aCustomerID) {
          this.CustomerID=aCustomerID;
          public CustomerPK() {
          public String toString(){
          return ((new Long(CustomerID)).toString());
          public boolean equals(Object aComparePK){
          if (this.CustomerID==((CustomerPK)aComparePK).CustomerID){
               return true;
          return false;
          public int hashCode(){
          return ((new Long(CustomerID).toString()).hashCode());
          } // END-CLASS
          CUSTOMER ejb-jar.xml
          <?xml version="1.0"?>
          <!DOCTYPE ejb-jar PUBLIC '-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 1.1//EN' 'http://java.sun.com/j2ee/dtds/ejb-jar_1_1.dtd'>
          <ejb-jar>
          <enterprise-beans>
          <entity>
               <ejb-name>Customer</ejb-name>
               <home>CustomerHome</home>
               <remote>Customer</remote>
               <ejb-class>CustomerBean</ejb-class>
               <persistence-type>Bean</persistence-type>
               <prim-key-class>CustomerPK</prim-key-class>
               <reentrant>False</reentrant>
               <resource-ref>
          <res-ref-name>jdbc/DeveloperPool</res-ref-name>
          <res-type>javax.sql.DataSource</res-type>
          <res-auth>Container</res-auth>
          </resource-ref>
          </entity>
          </enterprise-beans>
          <assembly-descriptor>
          <container-transaction>
               <method>
               <ejb-name>Customer</ejb-name>
               <method-intf>Remote</method-intf>
               <method-name>*</method-name>
               </method>
               <trans-attribute>Required</trans-attribute>
          </container-transaction>
          </assembly-descriptor>
          </ejb-jar>
          "Cameron Purdy" <[email protected]> wrote:
          >Are you using CMT? Have you marked the methods as REQUIRED?
          >
          >Peace,
          >
          >--
          >Cameron Purdy
          >Tangosol, Inc.
          >http://www.tangosol.com
          >+1.617.623.5782
          >WebLogic Consulting Available
          >
          >
          >"Justin Jose" <[email protected]> wrote in message
          >news:[email protected]...
          >>
          >> Hello,
          >>
          >> I have created 2 beans one is a Stateless Session and the other a Bean
          >Managed Entity Bean. The SS Bean has methods to retrieve an Oracle
          >Connection from a DataSource defined connection pool, and to close a
          >connection. The entity bean I have created is responsible for insterting a
          >new record into one of the tables in my database.
          >> I have a client app that calls the ejbCreate method on the entity bean at
          >which point the Entity EJB takes control, gets a valid connection from the
          >SS EJB, runs a simple working SQL SELECT statement (obtaining correct
          >values), and then attempts to perform an insert into a table using a
          >prepared statement. My problem is that the application runs fine without
          >any errors and all calls are made and all calls seem to be working fine. I
          >have checked to make sure that the Datasource I am using is AutoCommit=
          >false and it is and there are no exceptions being thrown in my EJB's but yet
          >it appears as though the SQL statements executeUpdate() command is not being
          >committed as their is no rows created in the database. Does anyone know
          >what I may be doing wrong. I have all ACL parameters set up correctly and
          >as I stated before the entire app runs without errors and I do have a SELECT
          >statment that is working properly within the same method as the INSERT
          >statement which is not!!! Please send any suggestions!!
          >>
          >> Justin
          >
          >