many的一方有one的一方的id，先要通过这个id查询从所有的one
实体类：
@Entity(name="SP_UNIT_TYPE")
public class SpUnitType implements Serializable{
private static final long serialVersionUID = 1L;
private Integer id;
private String code;
private String nameEnglish;
private String nameChinese;
private ValidState validState = ValidState.DISABLE;
private Flag flag = Flag.YES;
private String creator;
private Date createDate = new Date();
private String modifier;
private Date modifyDate = new Date();
private String shortName;
private Set<SpUnit> spUnits = new HashSet<SpUnit>();
@OneToMany(mappedBy="spUnitType",cascade=CascadeType.ALL,fetch=FetchType.EAGER)
public Set<SpUnit> getSpUnits() {
return spUnits;
}
public void setSpUnits(Set<SpUnit> spUnits) {
this.spUnits = spUnits;
}
.....省略
@Entity(name="SP_UNIT")
public class SpUnit implements Serializable{
private static final long serialVersionUID = 1L;
private Integer id;
private String code;
private String nameEnglish;
private String nameChinese;
private ValidState validState = ValidState.DISABLE;
private Flag flag = Flag.YES;
private String creator;
private Date createDate = new Date();
private String modifier;
private Date modifyDate;
private String shortName;
private SpUnitType spUnitType;
@ManyToOne(cascade=CascadeType.REFRESH,optional=false)
@JoinColumn(name="SP_UNIT_TYPE_ID")
public SpUnitType getSpUnitType() {
return spUnitType;
}
public void setSpUnitType(SpUnitType spUnitType) {
this.spUnitType = spUnitType;
}
........省略
——————————————————————————————
想通过SpUnitType的id查询出SpUnit的所有对象。
这个用JPQL怎么做呀？请高手指点。