Wie kann ich Daten mit Spring Data JPA des OneToMany-Attributs mit der FetchType Lazy-Konfiguration abrufen? ⇐ Java

[Anonymous]

Kann jemand bitte bei diesem Problem helfen? Ich habe eine Entität namens Staff und mit dem Attribut adminStaffResponses, die eine separate Tabelle für die OneToMany-Zuordnung erstellt. Ich habe den FetchType absichtlich auf „Lazy“ konfiguriert. Wie kann ich eine Liste von StaffRequests nach Mitarbeiter-ID und mit Paginierung abrufen?
Dies ist die Staff-Klasse

Code: Select all

package com.oouweb.staffrequestapp.model.entity;

import com.oouweb.staffrequestapp.model.constant.StaffType;
import jakarta.persistence.*;
import lombok.Data;
import lombok.NoArgsConstructor;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Objects;

@Data
@NoArgsConstructor
@Entity
@Table(name = "staffs")
public class Staff {

@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private int id;

@Column(nullable = false, unique = true)
private String staffId;

@Column(nullable = false, length = 25)
private String firstName;

@Column(nullable = false)
private String lastName;

@Column(nullable = false, length = 25)
private String middleName;

@Column(nullable = false, unique = true)
private String email;

@Column(nullable = false)
private String encryptedPassword;

@Enumerated(EnumType.STRING)
private StaffType staffType;

@Column(nullable = true)
private String profilePicturePathId;

@Column(name = "is_valid")
private boolean isValid;

@Column(nullable = false, length = 14)
private String phoneNumber;

@Temporal(TemporalType.TIMESTAMP)
private Date dateCreated;

@ManyToOne(fetch = FetchType.EAGER)
private Department department;

@ManyToOne(fetch = FetchType.EAGER)
private NonAcademicUnit nonAcademicUnit;

@OneToMany(fetch = FetchType.LAZY)
private List staffRequests = new ArrayList();

@OneToMany(fetch = FetchType.LAZY)
@JoinTable(
name = "admin_staff_responses",
joinColumns = @JoinColumn(name = "staff_id", referencedColumnName = "id"),
inverseJoinColumns = @JoinColumn(name = "request_id")
)
private List adminStaffResponses = new ArrayList();

@ManyToMany(fetch = FetchType.EAGER)
@JoinTable(
name = "staff_roles",
joinColumns = @JoinColumn(name = "staffId", referencedColumnName = "id"),
inverseJoinColumns = @JoinColumn(name = "roleId", referencedColumnName = "id")
)

hier eingeben

Code: Select all

private List roles = new ArrayList();

@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
Staff staff = (Staff) o;
return id == staff.id;
}

@Override
public int hashCode() {
return Objects.hashCode(id);
}
}

Dies

Code: Select all

package com.oouweb.staffrequestapp.model.entity;

import com.oouweb.staffrequestapp.model.constant.RequestResponseStatus;
import com.oouweb.staffrequestapp.model.constant.RequestStatus;
import jakarta.persistence.*;
import lombok.Data;
import lombok.NoArgsConstructor;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Objects;

@Data
@NoArgsConstructor
@Entity
@Table(name = "staff_requests")
public class StaffRequest {

@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private int id;

@Column(nullable = false)
private String requestId;

@Column(nullable = false)
private String requestSubject;

@Column(length = 1000)
private String reasonForRequest;

private String attachmentUrl;

@Enumerated(EnumType.STRING)
private RequestStatus requestStatus;

@Enumerated(EnumType.STRING)
private RequestResponseStatus responseStatus;

@OneToMany(fetch = FetchType.EAGER)
@JoinTable(name = "admin_request_reviews  ")
List  reviews = new ArrayList();

@Temporal(TemporalType.DATE)
private Date requestDate;

@ManyToOne(fetch = FetchType.EAGER)
private Staff staff;

@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
StaffRequest that = (StaffRequest) o;
return id == that.id;
}

@Override
public int hashCode() {
return Objects.hashCode(id);
}
}
`

I tried to use native query not but it was bringing ambiguous attribute

`@Query(value = """
SELECT id, request_id, request_subject, reason_for_request, attachment_url, request_status,                        response_status, request_date
FROM[tag:tag-name]
admin_staff_responses asr
JOIN
staff_requests sr
ON
asr.request_id = sr.id
WHERE
asr.staff_id = :staffId
""", nativeQuery = true)
List findByStaff(int staffId);`