package ejava.examples.orm.rel.annotated;
   
   import java.util.Date;
   
   import javax.persistence.*;
   
   import org.slf4j.Logger;
   import org.slf4j.LoggerFactory;
   
  @Entity @Table(name="ORMREL_CHECKOUT")
  public class Checkout {
      private static Logger log = LoggerFactory.getLogger(Checkout.class); 
      private static long CHECKOUT_DAYS = 1000 * 60 * 60 * 24 * 14;
  
      @Id @GeneratedValue @Column(name="CHECKOUT_ID")
      private long id;
  
      @Temporal(value=TemporalType.DATE)
      private Date outDate;
  
      @Temporal(value=TemporalType.DATE)
      private Date returnDate;
      @ManyToOne(optional=false, fetch=FetchType.LAZY)
      @JoinColumn(name="CHECKOUT_BID")
      private Borrower borrower;
      
      protected Checkout() {  //this is needed by persistence layer
          log.debug(super.toString() + ": ctor()");
      }  
      public Checkout(Date outDate) {
          log.debug(super.toString() + ": ctor() outDate=" + outDate);
          this.outDate = outDate;
      }
      public boolean isOverdue() {
          return (returnDate == null) ?
              System.currentTimeMillis() - outDate.getTime() > CHECKOUT_DAYS : 
              returnDate.getTime() - outDate.getTime()  > CHECKOUT_DAYS;
      }
      
      public long getId() { return id; }
  
      public Borrower getBorrower() { return borrower; }
      public void setBorrower(Borrower borrower) {
          this.borrower = borrower;
      }
  
      public Date getReturnDate() { return returnDate; }
      public void setReturnDate(Date returnDate) {
          this.returnDate = returnDate;
      }
  
      private String myInstance() {
          String s=super.toString();
          s = s.substring(s.lastIndexOf('.')+1);
          return s;
      }
      
      public String toString() {
          return myInstance() +
              ", id=" + id +
              ", outDate=" + outDate +
              ", returnDate=" + returnDate +
              ", isOverdue=" + isOverdue() +
              ", borrower=" + borrower;
      }
  }