public class Employee {

   private int eid;
   private String ename;
   private double salary;
   private String deg;

   public Employee(int eid, String ename, double salary, String deg) {
      super( );
      this.eid = eid;
      this.ename = ename;
      this.salary = salary;
      this.deg = deg;
   }

   public Employee( ) {
      super();
   }

   public int getEid( ) {
      return eid;
   }
   
   public void setEid(int eid) {
      this.eid = eid;
   }
   
   public String getEname( ) {
      return ename;
   }
   
   public void setEname(String ename) {
      this.ename = ename;
   }

   public double getSalary( ) {
      return salary;
   }
   
   public void setSalary(double salary) {
      this.salary = salary;
   }

   public String getDeg( ) {
      return deg;
   }
   
   public void setDeg(String deg) {
      this.deg = deg;
   }
}

xml version="1.0" encoding="UTF-8" ?>


      
    XML Mapping file
      
           
      


Annotation
Description


@Entity
This annotation specifies to declare the class as entity or a table.


@Table
This annotation specifies to declare table name.


@Basic
This annotation specifies non constraint fields explicitly.


@Embedded
This annotation specifies the properties of class or an entity whose value instance of an embeddable class.


@Id
This annotation specifies the property, use for identity (primary key of a table) of the class.


@GeneratedValue
This annotation specifies, how the identity attribute can be initialized such as Automatic, manual, or value taken from sequence table.


@Transient
This annotation specifies the property which in not persistent i.e. the value is never stored into database.


@Column
This annotation is used to specify column or attribute for persistence property.


@SequenceGenerator
This annotation is used to define the value for the property which is specified in @GeneratedValue annotation. It creates a sequence.


@TableGenerator
This annotation is used to specify the value generator for property specified in @GeneratedValue annotation. It creates a table for value generation.


@AccessType
This type of annotation is used to set the access type. If you set @AccessType(FIELD) then Field wise access will occur. If you set @AccessType(PROPERTY) then Property wise assess will occur.


@JoinColumn
This annotation is used to specify an entity association or entity collection. This is used in many- to-one and one-to-many associations.


@UniqueConstraint
This annotation is used to specify the field, unique constraint for primary or secondary table.


@ColumnResult
This annotation references the name of a column in the SQL query using select clause.


@ManyToMany
This annotation is used to define a many-to-many relationship between the join Tables.


@ManyToOne
This annotation is used to define a many-to-one relationship between the join Tables.


@OneToMany
This annotation is used to define a one-to-many relationship between the join Tables.


@OneToOne
This annotation is used to define a one-to-one relationship between the join Tables.


@NamedQueries
This annotation is used for specifying list of named queries.


@NamedQuery
This annotation is used for specifying a Query using static name.