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POGeneric Hibernate DAO
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copied!<p>appreciate it if some one could help on it. </p> <p>My plan is to have two layers. One is Service layer and second is DAO layer. The service layer will do business logic and DAO layer will do CRUD data operations.</p> <p>Have two hibernate entities named Person and Order. These two entities implement a BaseEntity interface. Would like to write a generic method in DAO layer, so that it can take any entity.</p> <p>Any suggestion as how to write that generic dao method?</p> <pre><code>@Entity @Table(name = "PERSON") public class Person implements BaseEntity, java.io.Serializable { private int id; private String firstName; public Person() { } @Id @Column(name = "PERSON_ID") @GeneratedValue(strategy = GenerationType.AUTO) public int getId() { return id; } public void setId(int id) { this.id = id; } @Column(name = "FIRST_NAME", nullable = false, length = 50) public String getFirstName() { return firstName; } public void setFirstName(String firstName) { this.firstName = firstName; } } </code></pre> <hr> <pre><code>@Entity @Table(name = "PURCHASE_ORDER") public class Order implements BaseEntity java.io.Serializable { private int id; public Order() { } @Id @Column(name = "ORDER_ID") @GeneratedValue(strategy = GenerationType.AUTO) public int getId() { return id; } public void setId(int id) { this.id = id; } @Transient @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.EAGER) public Set<OrderItem> getOrderItems() { return orderItems; } public void setOrderItems(Set<OrderItem> orderItems) { this.orderItems = orderItems; } } </code></pre> <p>Can you please advise as how to create a generic method which should take either Person or Order entity as input parameter?</p>

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