I am a newbie to hibernate and I am trying to insert a row. The below is my code along with log. I am not getting any exception, however when verified in the Database, the row itself is not getting inserted.

hibernate-cfg.xml

<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration
    PUBLIC "-//Hibernate/Hibernate Configuration DTD//EN"
    "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>
   <session-factory>
      <property name="connection.driver_class">org.hsqldb.jdbcDriver</property>
      <property name="connection.url">jdbc:hsqldb:file:C:\softwares\hsqlDB\hsqldb</property>
      <property name="connection.username">SA</property>
      <property name="connection.password"></property>

      <property name="show_sql">true</property>
      <property name="dialect">org.hibernate.dialect.OracleDialect</property>

      <property name="connection.autocommit">true</property>

       <!-- mapping resources -->
      <mapping resource="com/uhg/hibernate/Employee.hbm.xml"/>

   </session-factory>
</hibernate-configuration>

Employee.hbm.xml

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC 
 "-//Hibernate/Hibernate Mapping DTD//EN"
 "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd"> 

<hibernate-mapping>
   <class name="com.uhg.hibernate.Employee" table="EMPLOYEE">
      <id name="empId" type="int" column="EMPID">
      </id>
    <property name="empName" column="EMPNAME" type="string" length="20"></property> 
    <property name="empSal" column="EMPSAL" type="integer"></property> 
   </class>
</hibernate-mapping>

Employee.java

package com.uhg.hibernate;

import java.io.Serializable;

public class Employee implements Serializable
{
    private int empId;  
    private String empName;
    private int empSal;

    public Employee()
    {
        super();
    }

    public Employee(int empId,String name,int empSal)
    { 
        super(); 
        this.empName = name; 
        this.empId = empId;
        this.empSal = empSal;
    }

    public int getEmpId() {
        return empId;
    }

    public void setEmpId(int empId) {
        this.empId = empId;
    }

    public String getEmpName() {
        return empName;
    }

    public void setEmpName(String empName) {
        this.empName = empName;
    }

    public int getEmpSal() {
        return empSal;
    }

    public void setEmpSal(int empSal) {
        this.empSal = empSal;
    }
}

My Main class

package com.uhg.hibernate;

import java.util.Iterator;
import java.util.List;

package com.uhg.hibernate;

import java.util.Iterator;
import java.util.List;

import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;

public class HibernateQuery {

    private static SessionFactory factory;

    public static void main(String[] args) {

        try {
            Configuration cfg = new Configuration().configure("hibernate.cfg.xml");

            factory = cfg.buildSessionFactory();

        } catch (Throwable ex) {
            System.out.println(ex);
        }


        insertDatabaseData(factory); 
    }

    private static void insertDatabaseData(SessionFactory factory1) {

        Session session = factory1.openSession();
        Transaction tx = null;
        try {
            tx = session.beginTransaction();

            Employee employee = new Employee();
            employee.setEmpName("Vijaya");
            employee.setEmpSal(1234);

            int successfulInd = (Integer) session.save(employee);
            session.flush();
            if (successfulInd > 0) {
                System.out.println("Insertion successful");
            } else {
                System.out.println("Insertion not successful");
            }
            session.getTransaction().commit();
        } catch (Exception e) {
            if (tx != null)
                tx.rollback();
            e.printStackTrace();
        } finally {  
            session.close();
        }
    } 
}

Logs:

Nov 29, 2013 10:37:53 AM org.hibernate.cfg.Environment <clinit>
INFO: Hibernate 3.2.6
Nov 29, 2013 10:37:53 AM org.hibernate.cfg.Environment <clinit>
INFO: hibernate.properties not found
Nov 29, 2013 10:37:53 AM org.hibernate.cfg.Environment buildBytecodeProvider
INFO: Bytecode provider name : cglib
Nov 29, 2013 10:37:53 AM org.hibernate.cfg.Environment <clinit>
INFO: using JDK 1.4 java.sql.Timestamp handling
Nov 29, 2013 10:37:53 AM org.hibernate.cfg.Configuration configure
INFO: configuring from resource: hibernate.cfg.xml
Nov 29, 2013 10:37:53 AM org.hibernate.cfg.Configuration getConfigurationInputStream
INFO: Configuration resource: hibernate.cfg.xml
Nov 29, 2013 10:37:53 AM org.hibernate.cfg.Configuration addResource
INFO: Reading mappings from resource : com/uhg/hibernate/Employee.hbm.xml
Nov 29, 2013 10:37:54 AM org.hibernate.cfg.HbmBinder bindRootPersistentClassCommonValues
INFO: Mapping class: com.uhg.hibernate.Employee -> EMPLOYEE
Nov 29, 2013 10:37:54 AM org.hibernate.cfg.Configuration doConfigure
INFO: Configured SessionFactory: null
Nov 29, 2013 10:37:54 AM org.hibernate.connection.DriverManagerConnectionProvider configure
INFO: Using Hibernate built-in connection pool (not for production use!)
Nov 29, 2013 10:37:54 AM org.hibernate.connection.DriverManagerConnectionProvider configure
INFO: Hibernate connection pool size: 20
Nov 29, 2013 10:37:54 AM org.hibernate.connection.DriverManagerConnectionProvider configure
INFO: autocommit mode: true
Nov 29, 2013 10:37:54 AM org.hibernate.connection.DriverManagerConnectionProvider configure
INFO: using driver: org.hsqldb.jdbcDriver at URL: jdbc:hsqldb:file:C:\softwares\hsqlDB\hsqldb
Nov 29, 2013 10:37:54 AM org.hibernate.connection.DriverManagerConnectionProvider configure
INFO: connection properties: {user=SA, password=****, autocommit=true}
Nov 29, 2013 10:37:55 AM org.hibernate.cfg.SettingsFactory buildSettings
INFO: RDBMS: HSQL Database Engine, version: 1.8.0
Nov 29, 2013 10:37:55 AM org.hibernate.cfg.SettingsFactory buildSettings
INFO: JDBC driver: HSQL Database Engine Driver, version: 1.8.0
Nov 29, 2013 10:37:55 AM org.hibernate.dialect.Dialect <init>
INFO: Using dialect: org.hibernate.dialect.OracleDialect
Nov 29, 2013 10:37:55 AM org.hibernate.dialect.Oracle9Dialect <init>
WARNING: The Oracle9Dialect dialect has been deprecated; use either Oracle9iDialect or Oracle10gDialect instead
Nov 29, 2013 10:37:55 AM org.hibernate.dialect.OracleDialect <init>
WARNING: The OracleDialect dialect has been deprecated; use Oracle8iDialect instead
Nov 29, 2013 10:37:55 AM org.hibernate.transaction.TransactionFactoryFactory buildTransactionFactory
INFO: Using default transaction strategy (direct JDBC transactions)
Nov 29, 2013 10:37:55 AM org.hibernate.transaction.TransactionManagerLookupFactory getTransactionManagerLookup
INFO: No TransactionManagerLookup configured (in JTA environment, use of read-write or transactional second-level cache is not recommended)
Nov 29, 2013 10:37:55 AM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Automatic flush during beforeCompletion(): disabled
Nov 29, 2013 10:37:55 AM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Automatic session close at end of transaction: disabled
Nov 29, 2013 10:37:55 AM org.hibernate.cfg.SettingsFactory buildSettings
INFO: JDBC batch size: 15
Nov 29, 2013 10:37:55 AM org.hibernate.cfg.SettingsFactory buildSettings
INFO: JDBC batch updates for versioned data: disabled
Nov 29, 2013 10:37:55 AM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Scrollable result sets: enabled
Nov 29, 2013 10:37:55 AM org.hibernate.cfg.SettingsFactory buildSettings
INFO: JDBC3 getGeneratedKeys(): disabled
Nov 29, 2013 10:37:55 AM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Connection release mode: auto
Nov 29, 2013 10:37:55 AM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Default batch fetch size: 1
Nov 29, 2013 10:37:55 AM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Generate SQL with comments: disabled
Nov 29, 2013 10:37:55 AM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Order SQL updates by primary key: disabled
Nov 29, 2013 10:37:55 AM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Order SQL inserts for batching: disabled
Nov 29, 2013 10:37:55 AM org.hibernate.cfg.SettingsFactory createQueryTranslatorFactory
INFO: Query translator: org.hibernate.hql.ast.ASTQueryTranslatorFactory
Nov 29, 2013 10:37:55 AM org.hibernate.hql.ast.ASTQueryTranslatorFactory <init>
INFO: Using ASTQueryTranslatorFactory
Nov 29, 2013 10:37:55 AM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Query language substitutions: {}
Nov 29, 2013 10:37:55 AM org.hibernate.cfg.SettingsFactory buildSettings
INFO: JPA-QL strict compliance: disabled
Nov 29, 2013 10:37:55 AM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Second-level cache: enabled
Nov 29, 2013 10:37:55 AM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Query cache: disabled
Nov 29, 2013 10:37:55 AM org.hibernate.cfg.SettingsFactory createCacheProvider
INFO: Cache provider: org.hibernate.cache.NoCacheProvider
Nov 29, 2013 10:37:55 AM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Optimize cache for minimal puts: disabled
Nov 29, 2013 10:37:55 AM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Structured second-level cache entries: disabled
Nov 29, 2013 10:37:55 AM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Echoing all SQL to stdout
Nov 29, 2013 10:37:55 AM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Statistics: disabled
Nov 29, 2013 10:37:55 AM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Deleted entity synthetic identifier rollback: disabled
Nov 29, 2013 10:37:55 AM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Default entity-mode: pojo
Nov 29, 2013 10:37:55 AM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Named query checking : enabled
Nov 29, 2013 10:37:55 AM org.hibernate.impl.SessionFactoryImpl <init>
INFO: building session factory
Nov 29, 2013 10:37:55 AM org.hibernate.impl.SessionFactoryObjectFactory addInstance
INFO: Not binding factory to JNDI, no JNDI name configured
Hibernate: select max(EMPID) from EMPLOYEE
Hibernate: insert into EMPLOYEE (EMPNAME, SALARY, EMPID) values (?, ?, ?)
Insertion successful

Any small help is highly appreciable. Thanks in advance.

could you post the table too?

TABLE EMPLOYEE(
EMPID INTEGER GENERATED BY DEFAULT AS IDENTITY(START WITH 0) NOT NULL PRIMARY KEY,
EMPNAME CHAR(25),
SALARY DECIMAL(10,2) NOT NULL
)

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