nemo83

@Embeddable
public class ProductItemPk implements Serializable {

    private Item item;
    private Product product;

    @ManyToOne
    public Item getItem() {
        return item;
    }

nemo83

@Entity
@Table(name ="product_item")
@AssociationOverrides({
@AssociationOverride(name ="pk.item", joinColumns = @JoinColumn(name ="item_id")),
@AssociationOverride(name ="pk.product", joinColumns = @JoinColumn(name ="product_id"))
        })
public class ProductItem {

    private ProductItemPk pk =new ProductItemPk();

nemo83

@Entity
@Table(name ="product")
public class Product {

    private Integer id;
    private String name;
    private List<ProductItem> productItems =new LinkedList<ProductItem>();

    public Product() {
    }

nemo83

@Entity
@Table(name ="item")
public class Item {

    private Integer id;
    private String name;
    private List<ProductItem> productItems = new LinkedList<ProductItem>();

    public Item() {
    }

nemo83

public class ProjectAssociationId {
 
  private long employeeId;
 
  private long projectId;
  
  //[...]
}

nemo83

@Entity
@Table(name="PROJ_EMP")
@IdClass(ProjectAssociationId.class)
public class ProjectAssociation {
  @Id
  private long employeeId;
  @Id
  private long projectId;
  @Column("IS_PROJECT_LEAD")
  private boolean isProjectLead;

nemo83

@Entity
public class Project {

  @Id
  private long id;
  ...
  @OneToMany
  private List<ProjectAssociation> employees;
  ...
  // Add an employee to the project.

nemo83

@Entity
public class Employee {
  @Id
  private long id;
  ...
  @OneToMany
  private List<ProjectAssociation> projects;
}

nemo83

public class HelloWorld {

    public static void main(String[] args) {

        System.out.println("Hello World!");
    }

}

nemo83

import com.sun.jersey.spi.spring.container.servlet.SpringServlet;
import com.sun.jersey.test.framework.AppDescriptor;
import com.sun.jersey.test.framework.JerseyTest;
import com.sun.jersey.test.framework.WebAppDescriptor;
import org.junit.Test;
import org.springframework.web.context.ContextLoaderListener;
import org.springframework.web.context.request.RequestContextListener;

import javax.ws.rs.core.MediaType;