Reflection, or “A Class Named Class” - Java - page 932

own set of annotations defined in the package javax.persistence to “mark up” entity
classes to be loaded and/or persisted. A JPA Entity Class might look like Example 23-15 :

Example 23-15. Person.java: JPA annotations
@Entity
public

public class class Person Person {

int int id ;

protected

protected String firstName ;
protected protected String lastName ;

public public Person () {

// required by JPA; must code it since we need 2-arg form.

}

public public Person ( String firstName , String lastName ) {

this

this . firstName = firstName ;
this

this . lastName = lastName ;

}

@Id @GeneratedValue ( strategy = GenerationType . AUTO , generator = "my_poid_gen" )
public public int int getId () {

return

return id ;

}

public public void void setId ( int int id ) {

this this . id = id ;

}

public public String getFirstName () {

return return firstName ;

}

public public void void setFirstName ( String firstName ) {

this

this . firstName = firstName ;

}

@Column ( name = "surname" )
public

public String getLastName () {
return return lastName ;

}

public public void void setLastName ( String lastName ) {

this

this . lastName = lastName ;

}