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안녕과 테이블 조인 문제 사용 기준 전 기준 사용하여이 쿼리를 시도 :이 두 테이블 사이에JPA - 내부는 복합 키
select p.idpregled,p.idkarton,p.datum_pregleda,k.status from pregled p
inner join karton k
on p.idkarton = k.idkarton
where k.status ='Otvoren';
관계는 다음과 같이이다 : 두 가지의
table karton
idkarton (pk)
..
..
table pregled
idpregled (pk)
idkarton (pk,fk)
.
.
코드 이 2 개의 테이블 :
@Entity
@Table(name ="karton")
public class Karton implements Serializable {
/**
*
*/
private static final long serialVersionUID = 1L;
@Id
private KartonPrimaryKey pk = new KartonPrimaryKey();
@Column(name ="status", nullable = false)
private String status;
@Column(name="datum_otvaranja" , nullable = false)
private Date datumOtvaranja;
@Column(name = "napomena")
private String napomena;
@ManyToOne(targetEntity = Pacijent.class)
@JoinColumn(name ="idpacijent",nullable = false,unique = true)
private Pacijent pacijent;
@OneToMany(mappedBy = "pk.kartonForeignKey")
@GwtTransient
private List<Pregled> pregledi = new LinkedList<Pregled>();
public KartonPrimaryKey getPk() {
return pk;
}
public void setPk(KartonPrimaryKey pk) {
this.pk = pk;
}
public String getStatus() {
return status;
}
public void setStatus(String status) {
this.status = status;
}
public Date getDatumOtvaranja() {
return datumOtvaranja;
}
public void setDatumOtvaranja(Date datumOtvaranja) {
this.datumOtvaranja = datumOtvaranja;
}
public String getNapomena() {
return napomena;
}
public void setNapomena(String napomena) {
this.napomena = napomena;
}
public Pacijent getPacijent() {
return pacijent;
}
public void setPacijent(Pacijent pacijent) {
this.pacijent = pacijent;
}
public List<Pregled> getPregledi() {
return pregledi;
}
public void setPregledi(List<Pregled> pregledi) {
this.pregledi = pregledi;
}
public int hashCode(){
final int prime = 31;
int result = 1;
result = prime * result
+((pregledi == null) ? 0 : pregledi.hashCode());
result = prime * result
+((pk == null) ? 0 : pk.hashCode());
return result;
}
public boolean equals(Object obj){
if (this == obj)
return true;
if (obj == null)
return false;
if(getClass() != obj.getClass())
return false;
final Karton other = (Karton) obj;
if (pregledi == null) {
if(other.pregledi != null)
return false;
}else if(!pregledi.equals(other.pregledi))
return false;
if (pk == null) {
if(other.pk != null)
return false;
}else if(!pk.equals(other.pk))
return false;
return true;
}
}
@Embeddable
public class KartonPrimaryKey implements Serializable {
/**
*
*/
private static final long serialVersionUID = 1L;
@Column(name ="idkarton")
Integer idKarton;
public Integer getIdKarton() {
return idKarton;
}
public void setIdKarton(Integer idKarton) {
this.idKarton = idKarton;
}
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((idKarton == null) ? 0 : idKarton.hashCode());
// result = prime * result + ((version == null) ? 0 : version.hashCode());
return result;
}
public boolean equals(Object obj) {
if(this == obj)
return true;
if(obj == null)
return false;
if(getClass() != obj.getClass())
return false;
final KartonPrimaryKey other = (KartonPrimaryKey) obj;
if (idKarton == null) {
if(other.idKarton != null)
return false;
}else if(!idKarton.equals(other.idKarton))
return false;
return true;
}
}
@Entity
@Table(name = "pregled")
@AssociationOverrides({
@AssociationOverride(name = "pk.idPregled",
joinColumns = @JoinColumn(name = "idpregled")),
@AssociationOverride(name = "pk.kartonForeignKey",
joinColumns = @JoinColumn(name = "idkarton")) })
public class Pregled implements Serializable {
/**
*
*/
private static final long serialVersionUID = 1L;
@EmbeddedId
PregledKartonId pk = new PregledKartonId();
@Column(name ="datum_pregleda")
private Date datumPregleda;
@ManyToOne(targetEntity = Dijagnoza.class)
@JoinColumn(name ="iddijagnoza",nullable = false)
private Dijagnoza dijagnoza;
@OneToMany(mappedBy = "primaryKey.pregledForeignKey")
@GwtTransient
private List<PregledStavke> pregledStavke = new LinkedList<PregledStavke>();
public Dijagnoza getDijagnoza() {
return dijagnoza;
}
public void setDijagnoza(Dijagnoza dijagnoza) {
this.dijagnoza = dijagnoza;
}
public PregledKartonId getPregledKarton() {
return pk;
}
public void setPregledKarton(PregledKartonId pregledKarton) {
this.pk = pregledKarton;
}
@Transient
public Integer getIdPregled() {
return pk.getIdPregled();
}
public void setIdPregled(Integer id) {
pk.setIdPregled(id);
}
public PregledKartonId getPk() {
return pk;
}
public void setPk(PregledKartonId pk) {
this.pk = pk;
}
public List<PregledStavke> getPregledStavke() {
return pregledStavke;
}
public void setPregledStavke(List<PregledStavke> pregledStavke) {
this.pregledStavke = pregledStavke;
}
@Transient
public Karton getKarton() {
return getPregledKarton().getKartonForeignKey();
}
public void setKarton(Karton karton) {
getPregledKarton().setKartonForeignKey(karton);
}
public Date getDatumPregleda() {
return datumPregleda;
}
public void setDatumPregleda(Date datumPregleda) {
this.datumPregleda = datumPregleda;
}
public boolean equals(Object o) {
if (this == o)
return true;
if (o == null || getClass() != o.getClass())
return false;
Pregled that = (Pregled) o;
if (pregledStavke == null) {
if (that.pregledStavke != null) {
return false;
}
}else if(!pregledStavke.equals(that.pregledStavke))
return false;
if (pk == null) {
if (that.pk != null)
return false;
}else if (!pk.equals(that.pk))
return false;
return true;
}
//
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result +((pregledStavke == null) ? 0 : pregledStavke.hashCode());
result = prime * result +
((pk == null) ? 0 : pk.hashCode());
return result;
}
}
@Embeddable
public class PregledKartonId implements Serializable {
@GeneratedValue
@Column(name = "idpregled")
Integer idPregled;
@ManyToOne
private Karton kartonForeignKey;
public Integer getIdPregled() {
return idPregled;
}
public Karton getKartonForeignKey() {
return kartonForeignKey;
}
public void setKartonForeignKey(Karton kartonForeignKey) {
this.kartonForeignKey = kartonForeignKey;
}
public void setIdPregled(Integer idPregled) {
this.idPregled = idPregled;
}
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((idPregled == null)? 0 : idPregled.hashCode());
result = prime + result
+ ((kartonForeignKey == null) ? 0 : kartonForeignKey.hashCode());
return result;
}
public boolean equals(Object o){
if (this == o) return true;
if(o == null)
return false;
if(getClass() != o.getClass())
return false;
final PregledKartonId that = (PregledKartonId) o;
if(idPregled == null){
if(that.idPregled != null)
return false;
}else if(!idPregled.equals(that.idPregled))
return false;
if(kartonForeignKey == null){
if(that.kartonForeignKey != null)
return false;
}else if(!kartonForeignKey.equals(that.kartonForeignKey))
return false;
return true;
}
}
나는 기준이 코드를 시도하지만,이 성공적으로되지 않았습니다 :
01 23,516,Criteria criteria = session.createCriteria(Pregled.class);
criteria.setFetchMode("kartonForeignKey", FetchMode.JOIN).add(Restrictions.eq("status", "Otvoren"));
List<Pregled> pregledi = criteria.list();
이 코드 trows 나에게 스택 추적이 오류 : 사전에
com.google.gwt.user.server.rpc.UnexpectedException: Service method 'public abstract java.util.List com.fit.klinika.client.pregled.PregledService.queryPregledOtvoren()' threw an unexpected exception: org.hibernate.QueryException: could not resolve property: status of: com.fit.klinika.client.pregled.Pregled
at com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure(RPC.java:385)
at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:588)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248)
at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
감사합니다 :)
나는이하려고하면이 잘 작동
Criteria criteria = session.createCriteria(Pregled.class,"pregled");
criteria.createAlias("pregled.pk.kartonForeignKey","karton");
, 만약 내가 이 코드 행을 어디에 코드를 사용하여 추가 했습니까?
criteria.add(Restrictions.eq("karton", "Otvoren"));
같은 오류가 발생합니다. ???
는 그럼 난에 의해 해결되지 않은이 문제가
https://hibernate.onjira.com/browse/HB-417,
https://hibernate.onjira.com/browse/HHH-1742,
https://hibernate.onjira.com/browse/HHH-1570
이 버그가 온다 최대 절전 모드 이것에 대해 구글에 대한 몇 가지 검색을 수행하고를 찾을 수있다 2003 년부터, 그리고 최대 절전 모드로 고정되지 않습니다, 이것은 가능합니까 ?? wtf?!?!?!?)
안녕하세요, 도움을 주셔서 감사합니다. 나는 Karton 클래스에서 속성을 사용하여 "status"속성 이름을 얻습니다. – dusmanka