I cannot remove the association in Many To Many bidirectional hibernate - spring

I can't delete the association in the courses_student table of course and student when trying to delete a course, even if I want to cascade delete it does not work for me since there is a foreign key in courses_student, I don't know what the problem is.
I have also tried to remove the association in the courses_student table doing a update.but nothing happened.
DAO
#Override
public boolean deleteCourse(int id) {
Session currentSession = entityManager.unwrap(Session.class);
Courses course = currentSession.load(Courses.class, id);
for(Student student : course.getEstudiantes()) {
course.removeStudent(student);
}
currentSession.delete(course);
if(course.getId() == null)
return true;
else
return false;
}
Courses entity
#Entity
#Table(name = "courses")
public class Courses {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
#Column(name="id")
private Integer id;
#Column
private String nombre;
#Column
private String descripcion;
#ManyToMany(mappedBy = "courses")
private Set<Student> Estudiantes = new HashSet<Student>();
public Courses() {
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getNombre() {
return nombre;
}
public void setNombre(String nombre) {
this.nombre = nombre;
}
public String getDescripcion() {
return descripcion;
}
public void setDescripcion(String descripcion) {
this.descripcion = descripcion;
}
public Set<Student> getEstudiantes() {
return Estudiantes;
}
public void setEstudiantes(Set<Student> estudiantes) {
Estudiantes = estudiantes;
}
public void removeStudent(Student student) {
this.Estudiantes.remove(student);
student.getCourses().remove(this);
}
}
Student entity
#Entity
#Table(name = "students")
public class Student {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
#Column(name="id")
private Integer id;
#Column
private String nombre;
#Column
private String apellido;
#Column
private String dni;
#ManyToMany(fetch=FetchType.LAZY,
cascade= {CascadeType.PERSIST, CascadeType.MERGE,
CascadeType.DETACH, CascadeType.REFRESH})
#JoinTable(
name="courses_students",
joinColumns=#JoinColumn(name="id_student"),
inverseJoinColumns=#JoinColumn(name="id_course")
)
private Set<Courses> courses = new HashSet<Courses>();
public Student() {
}
public Student(String nombre, String apellido, String dni) {
this.nombre = nombre;
this.apellido = apellido;
this.dni = dni;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getNombre() {
return nombre;
}
public void setNombre(String nombre) {
this.nombre = nombre;
}
public String getApellido() {
return apellido;
}
public void setApellido(String apellido) {
this.apellido = apellido;
}
public String getDni() {
return dni;
}
public void setDni(String dni) {
this.dni = dni;
}
public Set<Courses> getCourses() {
return courses;
}
public void setCourses(Set<Courses> courses) {
this.courses = courses;
}
}
EDIT:
apparently it works for me, trying to update since owner side.
#Override
public boolean deleteCourse(int id) {
Session currentSession = entityManager.unwrap(Session.class);
Courses course = currentSession.load(Courses.class, id);
for(Student student : course.getEstudiantes()) {
student.removeCourse(course);
}
currentSession.update(course);
if(course.getId() == null)
return true;
else
return false;
}

It seems to me that you are missing a cascade configuration of your #ManyToMany annotation on Courses which is actually the one you are updating / deleting. Try the following:
#ManyToMany(mappedBy = "courses", cascade = {CascadeType.PERSIST, CascadeType.MERGE})
private Set<Student> Estudiantes = new HashSet<Student>();
Also, given that you have a bi-directional relationship, you should also remove the Course from each Student courses property.

Related

Spring JPA hibernate how to persist children (remove, add, or update) from #OneToMany parent column?

I'm trying to solve this problem since a while and I haven't achieved a 100% solution.
First of all I have to describe my problem. I'm developping a restaurant application, and amoung the Entities, I have the Entity Ingredient and as you know Ingredient can consist of other Ingredient with a specific quantity. So I created an Entity SubIngredient with an Embedded Id.
And to persist subIngredients list I tried a combinations of Cascade and orphanRemoval, each combination worked for some operation but not for the others.
I started by using CascadeType.ALL and the new subIngredient persisted successfuly from the #OneToMany propertiy, But if I try to remove an subIngredient from the subIngredients list and save this error appear.
java.lang.StackOverflowError: null
at com.mysql.cj.NativeSession.execSQL(NativeSession.java:1109) ~[mysql-connector-java-8.0.23.jar:8.0.23]......
I loked in the net for a solution and I find the I have to use orphanremoval = true I tried it but it didn't work until I changed cascade from CascadeType.ALL to CascadeType.PERSIST. But this one make the persistance of new SubIngredient this error aprear
Caused by: javax.persistence.EntityNotFoundException: Unable to find com.example.Resto.domain.SubIngredient with id com.example.Resto.domain.SubIngredientKey#51b11186........
These are my Enities:
#Entity
public class Ingredient {
#Id
#GeneratedValue( strategy = GenerationType.IDENTITY)
#Column(name="ID")
private long id;
#NotNull
#Column(unique=true)
private String name;
private String photoContentType;
#Lob
private byte[] photo;
#JsonIgnoreProperties({"photoContentType","photo"})
#ManyToOne
private IngredientType ingredientType;
#OneToMany(mappedBy = "embId.ingredientId", fetch = FetchType.EAGER,
cascade = CascadeType.ALL /*or orphanRemoval = true, cascade = CascadeType.PERSIST*/ )
private Set<SubIngredient> subIngredients = new HashSet<SubIngredient>();
getters and setters.....
And
#Entity
#AssociationOverrides({
#AssociationOverride(name = "embId.ingredientId",
joinColumns = #JoinColumn(name = "ING_ID")),
#AssociationOverride(name = "embId.subIngredientId",
joinColumns = #JoinColumn(name = "SUB_ING_ID")) })
public class SubIngredient {
#EmbeddedId
private SubIngredientKey embId = new SubIngredientKey();
private double quantity;
getters and setters....
And
#Embeddable
public class SubIngredientKey implements Serializable{
#ManyToOne(cascade = CascadeType.ALL)
private Ingredient ingredientId;
#ManyToOne(cascade = CascadeType.ALL)
private Ingredient subIngredientId;
getters and setters...
The stackoverflow happen because you use a Set<> with Hibernate. When Hibernate retrieves the entities from your DB, it will fill up the Set<> with each entities. In order to that, hashode/equals will be used to determine wether or not the entitie is already present in the Set<>. By default, when you call the hashcode of Ingredient, this happen:
hashcode Ingredient -> hashcode SubIngredient -> hashcode Ingredient
which will result in an infinite call of hashcode method. That's why you have a stackoverflow error.
The same thing will happen with equals/toString.
So to avoid such an issue, it's best to override hashcode, equals and toString.
I have solved the problem by making some changes to may Entities and override equals/hashcode methods thanks Pilpo.
#Embeddable
public class SubIngredientKey implements Serializable{
private Long ingredientId;
private Long subIngredientId;
/**
* #return the ingredientId
*/
#Override
public int hashCode() {
return Objects.hash(ingredientId, subIngredientId);
}
#Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (!(obj instanceof SubIngredientKey)) {
return false;
}
SubIngredientKey other = (SubIngredientKey) obj;
return Objects.equals(ingredientId, other.ingredientId)
&& Objects.equals(subIngredientId, other.subIngredientId);
}
}
#Entity
public class SubIngredient {
#EmbeddedId
private SubIngredientKey embId = new SubIngredientKey();
#ManyToOne(fetch = FetchType.LAZY)
#MapsId("ingredientId")
private Ingredient ingredient;
#ManyToOne(fetch = FetchType.LAZY)
#MapsId("subIngredientId")
private Ingredient subIngredient;
private double quantity;
#JsonIgnore
public SubIngredientKey getId() {
return embId;
}
public void setId(SubIngredientKey id) {
this.embId = id;
}
#JsonIgnoreProperties({"subIngredients","photo","photoContentType","ingredientType"})
public Ingredient getIngredient() {
return ingredient;
}
public void setIngredient(Ingredient ingredient) {
this.ingredient = ingredient;
}
#JsonIgnoreProperties({"subIngredients","photo","photoContentType","ingredientType"})
public Ingredient getSubIngredient() {
return subIngredient;
}
public void setSubIngredient(Ingredient subIngredient) {
this.subIngredient = subIngredient;
}
public double getQuantity() {
return quantity;
}
public void setQuantity(double quantity) {
this.quantity = quantity;
}
#Override
public String toString() {
return "subIngredient= " + getSubIngredient().getName() + " , quantity= " + getQuantity();
}
#Override
public int hashCode() {
return Objects.hash(ingredient,subIngredient);
}
#Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (!(obj instanceof SubIngredient)) {
return false;
}
SubIngredient other = (SubIngredient) obj;
return Objects.equals(ingredient, other.ingredient) && Objects.equals(subIngredient, other.subIngredient);
}
}
#Entity
public class Ingredient {
#Id
#GeneratedValue( strategy = GenerationType.IDENTITY)
#Column(name="ID")
private long id;
#NotNull
#Column(unique=true)
private String name;
private String photoContentType;
#Lob
private byte[] photo;
#JsonIgnoreProperties({"photoContentType","photo"})
#ManyToOne
private IngredientType ingredientType;
#OneToMany(mappedBy = "embId.ingredientId", fetch = FetchType.EAGER, cascade =
CascadeType.ALL, orphanRemoval = true)
private Set<SubIngredient> subIngredients = new HashSet<SubIngredient>();
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public String getName() {
return this.name;
}
public void setName(String name) {
this.name = name;
}
public String getPhotoContentType() {
return photoContentType;
}
public void setPhotoContentType(String photoContentType) {
this.photoContentType = photoContentType;
}
public byte[] getPhoto() {
return photo;
}
public void setPhoto(byte[] photo) {
this.photo = photo;
}
public IngredientType getIngredientType() {
return this.ingredientType;
}
public void setIngredientType(IngredientType ingredientType) {
this.ingredientType = ingredientType;
}
public Set<SubIngredient> getSubIngredients() {
return subIngredients;
}
public void setSubIngredients(Set<SubIngredient> subIngredients) {
this.subIngredients = subIngredients;
}
public void addSubIngredient(SubIngredient subIngredient) {
this.subIngredients.add(subIngredient);
}
#Override
public String toString() {
String subIngsText = "";
for(var subIngredient:this.subIngredients) {
subIngsText = subIngsText + ", " + subIngredient.toString();
}
return "{id= "+id+",name=" + name +", ingredients="+subIngsText+"}";
}
#Override
public int hashCode() {
return Objects.hash(name);
}
#Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (!(obj instanceof Ingredient)) {
return false;
}
Ingredient other = (Ingredient) obj;
return Objects.equals(name, other.name);
}
}

Null value in primary key of hibernate entity

I faced with problem of null value in PK.
Here's an entity:
#Entity
#Table(name="space")
public class Space implements Serializable {
#Id
#GeneratedValue
#Column(nullable = false, unique = true)
private Long id;
#ManyToOne(fetch = FetchType.LAZY)
#JoinColumn(name="user_id")
private UserAccount user;
private String name;
private String description;
private Date createdTime;
private Date modifiedTime;
#OneToMany(mappedBy="space")
private Set<SpaceAccess> spaceAccesses = new HashSet<>();
public Set<SpaceAccess> getSpaceAccesses() {
return spaceAccesses;
}
public void setSpaceAccesses(Set<SpaceAccess> spaceAccesses) {
this.spaceAccesses = spaceAccesses;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Space() {}
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public UserAccount getUser() {
return user;
}
public void setUser(UserAccount user) {
this.user = user;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public Date getCreatedTime() {
return createdTime;
}
public void setCreatedTime(Date createdTime) {
this.createdTime = createdTime;
}
public Date getModifiedTime() {
return modifiedTime;
}
public void setModifiedTime(Date modifiedTime) {
this.modifiedTime = modifiedTime;
}
}
I wrote strategy to generate PK properly but I always get Null in id field when I create new instance of the Space:
Space space = new Space();
Here's content of the object:
What i should do to generate id of instance properly using hibernate/spring mechanisms?
application.properties:
spring.datasource.url="some_url"
spring.datasource.username=name
spring.datasource.password=password
spring.jpa.generate-ddl=true
P.S. I use spring-boot-starter-data-jpa with version: 2.3.4.RELEASE.
Use:
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}

Spring data repositories - performance issue

I'm using Spring , JPArepostories and hibernate, to save some entities to database.
My entities :
Users:
#Entity
#Table(name = "users")
public class User {
#Id
#GeneratedValue
#Column(name = "ID")
private Long id;
#Column(name = "CARDID",unique=true)
private String cardId;
#ManyToOne(fetch = FetchType.EAGER)
#JoinColumn(name ="SUPPLIERUSERID", nullable = true)
#JsonIgnore
private SupplierUser supplierUser;
#Column(name = "NAME")
private String name;
#Column(name = "SURENAME")
private String sureName;
#Column(name = "ACTIVE")
private Boolean active;
#Column(name = "SMS")
private String sms;
#Column(name = "EMAIL")
private String email;
#OneToMany(mappedBy = "user", fetch = FetchType.EAGER, cascade = CascadeType.ALL)
private List<Box> boxList = new ArrayList<Box>();
#OneToMany(mappedBy = "user", fetch = FetchType.EAGER, cascade = CascadeType.ALL)
private List<Notification> notificationList = new ArrayList<Notification>();
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getCardId() {
return cardId;
}
public void setCardId(String cardId) {
this.cardId = cardId;
}
public SupplierUser getSupplierUser() {
return supplierUser;
}
public void setSupplierUser(SupplierUser supplierUser) {
this.supplierUser = supplierUser;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getSureName() {
return sureName;
}
public void setSureName(String sureName) {
this.sureName = sureName;
}
public Boolean getActive() {
return active;
}
public void setActive(Boolean active) {
this.active = active;
}
public String getSms() {
return sms;
}
public void setSms(String sms) {
this.sms = sms;
}
public List<Box> getBoxList() {
return boxList;
}
public void setBoxList(List<Box> boxList) {
this.boxList = boxList;
}
public List<Notification> getNotificationList() {
return notificationList;
}
public void setNotificationList(List<Notification> notificationList) {
this.notificationList = notificationList;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
}
Users have boxes:
#Entity
#Table(name = "boxes")
public class Box {
#Id
#GeneratedValue
#Column(name = "ID")
private Long id;
#ManyToOne(fetch = FetchType.EAGER)
#JoinColumn(name ="USERID", nullable = true)
#JsonIgnore
private User user;
#Column(name = "BOXNUMBER",unique=true)
private int boxNumber;
#Column(name = "MODBUSADDRESS")
private int modbusAddress;
#Column(name = "MODBUSREGISTER")
private int modbusRegister;
#Column(name = "STATE")
private String state;
#OneToMany(mappedBy = "box", fetch =FetchType.EAGER,cascade = CascadeType.ALL)
private List<Transaction> transactionsList = new ArrayList<Transaction>();
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public int getModbusAddress() {
return modbusAddress;
}
public void setModbusAddress(int modbusAddress) {
this.modbusAddress = modbusAddress;
}
public int getModbusRegister() {
return modbusRegister;
}
public void setModbusRegister(int modbusRegister) {
this.modbusRegister = modbusRegister;
}
public List<Transaction> getTransactionsList() {
return transactionsList;
}
public void setTransactionsList(List<Transaction> transactionsList) {
this.transactionsList = transactionsList;
}
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
public int getBoxNumber() {
return boxNumber;
}
public void setBoxNumber(int boxNumber) {
this.boxNumber = boxNumber;
}
public String getState() {
return state;
}
public void setState(String state) {
this.state = state;
}
}
Boxes have transactions:
#Entity
#Table(name = "transactions")
public class Transaction {
#Id
#GeneratedValue
#Column(name = "ID")
private Long id;
#ManyToOne(fetch = FetchType.EAGER)
#JoinColumn(name ="BOXID", nullable = true)
#JsonIgnore
private Box box;
#Column(name = "TYPE")
private String type;
#Column(name = "SUPPLIERUSERCARDID")
private String supplierUserCardId;
#Column(name = "DATE")
#Temporal(TemporalType.TIMESTAMP)
private Date date;
#OneToMany(mappedBy = "transaction", fetch = FetchType.EAGER,cascade = CascadeType.ALL)
private List<Notification> notificationsList = new ArrayList<Notification>();
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public Box getBox() {
return box;
}
public void setBox(Box box) {
this.box = box;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public Date getDate() {
return date;
}
public void setDate(Date date) {
this.date = date;
}
public String getSupplierUserCardId() {
return supplierUserCardId;
}
public void setSupplierUserCardId(String supplierUserCardId) {
this.supplierUserCardId = supplierUserCardId;
}
public List<Notification> getNotificationsList() {
return notificationsList;
}
public void setNotificationsList(List<Notification> notificationsList) {
this.notificationsList = notificationsList;
}
}
And transaction have notifications (notification refer as well to user):
#Entity
#Table(name = "notifications")
public class Notification {
#Id
#GeneratedValue
#Column(name = "ID")
private Long id;
#ManyToOne(fetch = FetchType.EAGER)
#JoinColumn(name ="TRANSACTIONID", nullable = true)
#JsonIgnore
private Transaction transaction;
#ManyToOne(fetch = FetchType.EAGER)
#JoinColumn(name ="USERID", nullable = true)
#JsonIgnore
private User user;
#Column(name = "TYPE")
private String type;
#Temporal(TemporalType.TIMESTAMP)
#Column(name = "CREATED")
private Date created;
#Temporal(TemporalType.TIMESTAMP)
#Column(name = "SENDED")
private Date sended;
#Column(name = "RETRIES")
private Long retries;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public Date getCreated() {
return created;
}
public void setCreated(Date created) {
this.created = created;
}
public Date getSended() {
return sended;
}
public void setSended(Date sended) {
this.sended = sended;
}
public Long getRetries() {
return retries;
}
public void setRetries(Long retries) {
this.retries = retries;
}
public Transaction getTransaction() {
return transaction;
}
public void setTransaction(Transaction transaction) {
this.transaction = transaction;
}
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
}
And my question is - what I'm doing wrong, because following method for list with 150 boxes inside takes about 20 seconds to finish.
public void changeBoxOwners(ArrayList<Box> boxList){
String id = theSoftwareCore.getSupplierUser().getCardId();
ArrayList<Box> boxToSave = new ArrayList<Box>();
for (Box box : boxList){
Box existingBox = theSoftwareCore.boxServiceImp.findByBoxNumber(box.getBoxNumber());
existingBox.setState("full");
User user = theSoftwareCore.userServiceImp.findOneByCardId(box.getUser().getCardId());
//deleting not sent notifications
for (Transaction trans : existingBox.getTransactionsList()){
for (Notification notif: trans.getNotificationsList()){
if (notif.getSended()==null){
notif.setSended(new Date(0));
}
}
}
Transaction transaction = new Transaction();
transaction.setType("in");
transaction.setSupplierUserCardId(id);
transaction.setDate(new Date());
transaction.setBox(existingBox);
Notification notification = new Notification();
notification.setCreated(new Date());
notification.setType("smsTakeYourStaff");
notification.setTransaction(transaction);
notification.setUser(user);
existingBox.setUser(user);
transaction.getNotificationsList().add(notification);
existingBox.getTransactionsList().add(transaction);
boxToSave.add(existingBox);
}
System.out.println("Start saving" + new Date());
theSoftwareCore.boxServiceImp.saveAll(boxToSave);
System.out.println("End " + new Date());
}
Thanks for your time in advance.

could not resolve property: product_id of: Comment

Getting an error on server startup a query that finds all comments posted by a user about a specific product.
Caused by: java.lang.IllegalArgumentException: org.hibernate.QueryException: could not resolve property: product_id of: haughton.dvdstore.model.Comment [select c from haughton.dvdstore.model.Comment c where c.product_id = :id]
Repo class
#Repository
public interface CommentDao extends CrudRepository<Comment,Long> {
#Query("select c from Comment c where c.product_id = :id")
List<Comment> allCommentsByProductId(#Param("id") Long id);
}
Comment class
#Entity
public class Comment {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
#ManyToOne
#JoinColumn(name = "product_id")
private Product product;
#ManyToOne
#JoinColumn(name = "user_id")
private User user;
private String text;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public Product getProduct() {
return product;
}
public void setProduct(Product product) {
this.product = product;
}
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
public String getText() {
return text;
}
public void setText(String text) {
this.text = text;
}
}
My product class
#Entity
public class Product {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
private String title;
private String description;
private int quantityInStock;
Date date;
private double price;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public int getQuantityInStock() {
return quantityInStock;
}
public void setQuantityInStock(int quantityInStock) {
this.quantityInStock = quantityInStock;
}
public Date getDate() {
return date;
}
public void setDate(Date date) {
this.date = date;
}
public double getPrice() {
return price;
}
public void setPrice(double price) {
this.price = price;
}
}
User class
#Entity
public class User implements UserDetails {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
#Column(unique = true)
#Size(min = 8, max = 20)
private String username;
#Column(length = 100)
private String password;
#Column(nullable = false)
private boolean enabled;
#OneToOne
#JoinColumn(name = "role_id")
private Role role;
#Override
public Collection<? extends GrantedAuthority> getAuthorities() {
List<GrantedAuthority> authorities = new ArrayList<>();
authorities.add(new SimpleGrantedAuthority(role.getName()));
return authorities;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
#Override
public String getPassword() {
return password;
}
#Override
public String getUsername() {
return username;
}
#Override
public boolean isAccountNonExpired() {
return true;
}
#Override
public boolean isAccountNonLocked() {
return true;
}
#Override
public boolean isCredentialsNonExpired() {
return true;
}
#Override
public boolean isEnabled() {
return enabled;
}
public static PasswordEncoder getPasswordEncoder() {
return PASSWORD_ENCODER;
}
}
It should have been #Query("select c from Comment c where c.product.id = :id")

Stop hibernate from firing update query on #ManyToOne entities

I have two entities ProductCartItem and Product. A product in my scenario is more of a master record that is never gonna change. Below is the mapping.
#Entity
#DiscriminatorValue(value = "PRODUCT")
public class ProductCartItem extends CartItem {
#ManyToOne(optional = false)
#JoinColumn(name = "product_id", referencedColumnName = "id")
private Product product;
#OneToMany(cascade = CascadeType.REMOVE, mappedBy = "parentProductCartItem",orphanRemoval = true)
#JsonManagedReference
Set<AccessoryCartItem> associatedAccessories = new HashSet<>();
#Column(name="property")
#Type(type = "ProductItemPropertyUserType")
private ProductItemProperty productItemProperty;
#OneToOne
#JoinColumn(name="project_id",referencedColumnName = "id")
private Project project;
public Product getProduct() {
return product;
}
public void setProduct(Product product) {
this.product = product;
}
public Set<AccessoryCartItem> getAssociatedAccessories() {
return associatedAccessories;
}
public void setAssociatedAccessories(Set<AccessoryCartItem> associatedAccessories) {
this.associatedAccessories = associatedAccessories;
}
public void addAccessory(AccessoryCartItem accessoryCartItem) {
this.getAssociatedAccessories().add(accessoryCartItem);
}
public void removeAccessory(AccessoryCartItem accessoryCartItem) {
this.getAssociatedAccessories().remove(accessoryCartItem);
}
public ProductItemProperty getProductItemProperty() {
return productItemProperty;
}
public void setProductItemProperty(ProductItemProperty productItemProperty) {
this.productItemProperty = productItemProperty;
}
public Project getProject() {
return project;
}
public void setProject(Project project) {
this.project = project;
}
}
And here is the Product entity.
#Entity
public class Product extends BaseEntity {
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Integer id;
#Column(name = "title")
private String title;
#Column(name = "subtitle")
private String subtitle;
#Column(name = "description")
private String description;
#Column(name = "type_name")
private String typeName;
#Column(name = "price")
private Float price;
#Column(name = "image_list")
#Type(type = "MyImageListUserType")
private MyImageList imageList;
#Column(name = "pricing_property")
#Type(type = "PricingProperty")
private Map<String,SizePriceDTO> pricingProperty;
#JoinColumn(name = "product_type")
#ManyToOne
private ProductType productType;
private String orientation;
private Short groupId;
#Column(name = "display_order")
private Short displayOrder;
#Column(name = "base_quantity")
private int baseQuantity;
#Transient
private List<AccessoryDTO> configuredAccessoryDTOList;
public Product(){
}
public int getBaseQuantity() {
return baseQuantity;
}
public void setBaseQuantity(int baseQuantity) {
this.baseQuantity = baseQuantity;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getSubtitle() {
return subtitle;
}
public void setSubtitle(String subtitle) {
this.subtitle = subtitle;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public String getTypeName() {
return typeName;
}
public void setTypeName(String typeName) {
this.typeName = typeName;
}
public Float getPrice() {
return price;
}
public void setPrice(Float price) {
this.price = price;
}
public MyImageList getImageList() {
return imageList;
}
public void setImageList(MyImageList imageList) {
this.imageList = imageList;
}
public ProductType getProductType() {
return productType;
}
public void setProductType(ProductType productType) {
this.productType = productType;
}
public String getOrientation() {
return orientation;
}
public void setOrientation(String orientation) {
this.orientation = orientation;
}
public Short getGroupId() {
return groupId;
}
public void setGroupId(Short groupId) {
this.groupId = groupId;
}
public Short getDisplayOrder() {
return displayOrder;
}
public void setDisplayOrder(Short displayOrder) {
this.displayOrder = displayOrder;
}
public List<AccessoryDTO> getConfiguredAccessoryDTOList() {
return configuredAccessoryDTOList;
}
public void setConfiguredAccessoryDTOList(List<AccessoryDTO> configuredAccessoryDTOList) {
this.configuredAccessoryDTOList = configuredAccessoryDTOList;
}
public Map<String, SizePriceDTO> getPricingProperty() {
return pricingProperty;
}
public void setPricingProperty(Map<String,SizePriceDTO> pricingProperty) {
this.pricingProperty = pricingProperty;
}
}
Now when I create a new ProductCartItem I associate an already existing Product with it. When I save the productcartitem hibernate for some reasons is firing an update query on the product table too. I have already tried setting the relationship as updatable= false but to no avail. Below is the code for the service.
private ShoppingCart addProductToCartHelper(ProductCartItemDTO productCartItemDTO) throws ShoppingException{
ShoppingCart shoppingCart;
ProductCartItem productCartItem;
Product product = productService.getProductById(productCartItemDTO.getProductDTO().getId().intValue());
if (null == product) {
throw new ShoppingException();
}
Customer currentCustomer = CanveraWebUtil.getCurrentCustomer();
GuestUser guestUser = guestUserService.loadGuestUserByUUID(CanveraWebUtil.getCurrentGuestUserIdentifier());
shoppingCart = fetchShoppingCartForCustomerOrGuestUser();
if (null == shoppingCart) {
if (null != currentCustomer) {
shoppingCart = new ShoppingCart(currentCustomer);
} else {
shoppingCart = new ShoppingCart(guestUser);
}
shoppingCart.setShoppingBagStatus(ShoppingBagStatus.DRAFT);
}
Long productCartItemDTOId = productCartItemDTO.getId();
// we will not update the associated accessories as in our case these never comes from our UI.
if (null == productCartItemDTOId) {
modifyNumberOfPages(productCartItemDTO,product);
productCartItem = new ProductCartItem();
productCartItem.setProductItemProperty(productCartItemDTO.getProductItemProperty());
productCartItem.setQuantity(productCartItemDTO.getQuantity());
productCartItem.setProduct(product);
productCartItem.setPrice(productCartItemDTO.getPrice());
productCartItem.setGiftWrap(shoppingCart.getIsGiftWrap());
//associating project
productCartItem.setProject(productCartItemDTO.getProject());
shoppingCart.addCartItem(productCartItem);
productCartItem.setShoppingCart(shoppingCart);
} else {
for (CartItem cartItem : shoppingCart.getCartItems()) {
if (null != cartItem.getId() && cartItem.getId().equals(productCartItemDTOId)) {
productCartItem = (ProductCartItem) cartItem;
productCartItem.setProductItemProperty(productCartItemDTO.getProductItemProperty());
productCartItem.setPrice(productCartItemDTO.getPrice());
productCartItem.setQuantity(productCartItemDTO.getQuantity());
}
}
}
shoppingCart = shoppingCartRepository.save(shoppingCart);
return shoppingCart;
}
Can anybody point me in the right direction ? At any point of time I do not alter any property of the product object.

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