account.java

想学习EJB的同学

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package ejb3.day4;

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

/**
 *
 * @author user
 */
@Entity
@Table(name="ACCOUNTS")
@EntityListeners(AccountLCCallback.class)
@NamedQueries(
{
    @NamedQuery(name="findByName", query="select a from Account a where a.name=:name"),
    @NamedQuery(name="findAll", query="select a from Account a")
}
)
public class Account implements Serializable {
    private static final long serialVersionUID = 1L;
    private Long id;
    private String name;
    private float balance;
    private float interest;
    private int version;
        
    public void setId(Long id) {
        this.id = id;
    }

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    @Column(name="ACCOUNTNO")
    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 Account)) {
            return false;
        }
        Account other = (Account) 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.day4.Account[id=" + id 
                + ",name=" + name 
                + ",balance="+ balance 
                + ",interest="+ interest
                + "]";
    }
    @Basic(optional=false)
    @Column(length=32, nullable=false)
    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
    @Basic(optional=false)
    @Column(nullable=false)
    public float getBalance() {
        return balance;
    }

    public void setBalance(float balance) {
        this.balance = balance;
    }
    
    @Transient
    public float getInterest() {
        return interest;
    }
    
    public void setInterest(float interest){
        this.interest = interest;
    }
    
    @Version
    public int getVersion() {
        return version;
    }

    public void setVersion(int version) {
        this.version = version;
    }
}