?? vehicle.java
字號:
package com.foshanshop.ejb3.bean;
import java.io.Serializable;
import javax.persistence.Column;
import javax.persistence.DiscriminatorColumn;
import javax.persistence.DiscriminatorType;
import javax.persistence.DiscriminatorValue;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Inheritance;
import javax.persistence.InheritanceType;
import javax.persistence.Table;
@SuppressWarnings("serial")
@Entity
@Table(name="Vehicle_Hierarchy")
@Inheritance(strategy=InheritanceType.SINGLE_TABLE)
@DiscriminatorColumn(name="Discriminator",
discriminatorType = DiscriminatorType.STRING,
length=30)
@DiscriminatorValue("Vehicle")
public class Vehicle implements Serializable{
private Long id;
private Short speed;//速度
@Id
@GeneratedValue
@Column(columnDefinition="integer")
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public Short getSpeed() {
return speed;
}
public void setSpeed(Short speed) {
this.speed = speed;
}
}
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