taxrate.java

想学习EJB的同学

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package ejb3.day6;

import java.io.Serializable;
import javax.persistence.Basic;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.NamedQuery;
import javax.persistence.Table;

/**
 *
 * @author user
 */
@Entity
@Table(name="TAXRATES")
@NamedQuery(name="findByProvince",
query="select tr from TaxRate tr where tr.province=:province")
public class TaxRate implements Serializable {
    private static final long serialVersionUID = 1L;
    private Long id;
    private String province;
    private double rate;

    public TaxRate(){}
    public TaxRate(String province, double rate){
        this.province = province;
        this.rate = rate;
    }
    
    public void setId(Long id) {
        this.id = id;
    }

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    public Long getId() {
        return id;
    }

    @Override
    public int hashCode() {
        int hash = 0;
        hash += (id != null ? id.hashCode() : 0);
        return hash;
    }

    @Override
    public boolean equals(Object object) {
        // TODO: Warning - this method won't work in the case the id fields are not set
        if (!(object instanceof TaxRate)) {
            return false;
        }
        TaxRate other = (TaxRate) object;
        if ((this.id == null && other.id != null) || (this.id != null && !this.id.equals(other.id))) {
            return false;
        }
        return true;
    }

    @Override
    public String toString() {
        return "ejb3.day6.TaxRate[id=" + id + "]";
    }
    @Basic(optional=false)
    @Column(length=32, unique=true, nullable=false)
    public String getProvince() {
        return province;
    }

    public void setProvince(String province) {
        this.province = province;
    }
    
    @Basic(optional=false)
    @Column(nullable=false)
    public double getRate() {
        return rate;
    }

    public void setRate(double rate) {
        this.rate = rate;
    }

}