I met a problem: in my course project I use spring-jpa and create UserEntity with two unique fields. On my local machine all works perfectly well (creates unique constraints in db), but on heroku unique constraints doesn't creates.
I use java9 + spring-jpa.
import javax.persistence.*;
#Entity(name = "UserEntity")
#Table(name = "user_entity", uniqueConstraints = {
#UniqueConstraint(columnNames = {"nickname"}, name = "nickname_constraint"),
#UniqueConstraint(columnNames = {"email"}, name = "email_constraint")
})
public class UserEntity {
private Integer id;
private String nickname;
private String email;
private String passwordHash;
private String avatarPath;
private GameResults gameResults;
public UserEntity() {
}
public UserEntity(String nickname, String email, String password) {
this.nickname = nickname;
this.email = email;
this.passwordHash = password;
}
public UserEntity(String nickname, String password) {
this.nickname = nickname;
this.passwordHash = password;
}
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
public Integer getId() {
return id;
}
#Column(name = "nickname")
public String getNickname() {
return this.nickname;
}
#Column(name = "avatar_path")
public String getAvatarPath() {
return avatarPath;
}
#Column(name = "email")
public String getEmail() {
return email;
}
#Column(name = "password_hash")
public String getPasswordHash() {
return passwordHash;
}
#OneToOne(fetch = FetchType.LAZY)
public GameResults getGameResults() {
return gameResults;
}
// setters ommited
}
Thank you jusermar10!
Really, the problem was that i have deployed application with incorrect jpa entity first time. After redeploying fixed version of application there weren't necessary constraints in the postgres. So dropping db and restarting all dynos helped me.
Related
I'm trying to implement a Spring Boot Rest API using Spring Data Jdbc with H2 Database.
This is a microservice, and I'm trying to send a POST request to the microservice from an angular app. I know my POST is working correctly from Angular. Inside of microservice, I am trying to save the POST request to a local H2 database.
This should be relatively straight forward based on documentation I've read online, but I am getting error messages. Any help would be greatly appreciated. Here are the files I have setup inside my spring boot microservice (titled 'order'):
OrderController.java:
package com.clothingfly.order;
import java.util.ListIterator;
import org.springframework.web.client.RestTemplate;
import com.clothingfly.order.Model.Item;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;
import com.clothingfly.order.Model.Order;
#RestController
#CrossOrigin(origins = "http://localhost:4200")
public class OrderController {
#Autowired
TempOrderRepository orderRepository;
#PostMapping("/order")
public Order postOrder(#RequestBody Order order) {
Order _order = orderRepository.save(new Order(order.getId(), order.getAddress(), order.getPayment(), order.getItems()));
return _order;
}
}
TempOrderRepository.java:
package com.clothingfly.order;
import org.springframework.data.jpa.repository.JpaRepository;
import com.clothingfly.order.Model.Order;
public interface TempOrderRepository extends JpaRepository<Order, Long>{
}
OrderApplication.java:
package com.clothingfly.order;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication
public class OrderApplication {
public static void main(String[] args) {
SpringApplication.run(OrderApplication.class, args);
}
}
And I have a model named Order.java:
package com.clothingfly.order.Model;
import java.util.List;
import javax.persistence.*;
import org.springframework.data.annotation.Id;
#Entity
#Table(name = "orders")
public class Order {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
private long id;
#Column(name = "Address")
private Address address;
#Column(name = "Payment")
private PaymentInfo payment;
#Column(name = "Items")
private List<Item> items;
#Column(name = "Error")
private String error;
public Order() {
}
public Order(long id, Address address, PaymentInfo payment, List<Item> items){
this.id = id;
this.address = address;
this.payment = payment;
this.items = items;
this.error = "";
}
public long getId() {
return id;
}
public Address getAddress() {
return address;
}
public PaymentInfo getPayment() {
return payment;
}
public List<Item> getItems() {
return items;
}
public String getError() {
return error;
}
public void setError(String error) {
this.error = error;
}
}
The Order model takes in three other models:
Item.java:
package com.clothingfly.order.Model;
import javax.persistence.*;
#Entity
#Table(name = "items")
public class Item {
#Id
#GeneratedValue
#Column(name = "id")
private long id;
#Column(name = "name")
private String name;
#Column(name = "price")
private float price;
#Column(name = "imageUrl")
private String imageUrl;
#Column(name = "quantity")
private long quantity;
#Column(name = "inventory")
private long inventory;
public long getId() {
return id;
}
public String getName() {
return name;
}
public float getPrice() {
return price;
}
public long getQuantity() {
return quantity;
}
public long getInventory() {
return inventory;
}
public String getImageUrl(){
return imageUrl;
}
public void setInventory(long inventory) {
this.inventory = inventory;
}
public void setName(String name) {
this.name = name;
}
public void setPrice(float price) {
this.price = price;
}
public void setQuantity(long quantity) {
this.quantity = quantity;
}
public Item(long id, String name, float price, long quantity, long inventory, String imageUrl) {
this.id = id;
this.name = name;
this.price = price;
this.quantity = quantity;
this.inventory = inventory;
this.imageUrl = imageUrl;
}
public Item() {
}
}
Address.java:
package com.clothingfly.order.Model;
import javax.persistence.*;
#Entity
#Table(name = "addresses")
public class Address {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
private long id;
#Column(name = "firstName")
private String firstName;
#Column(name = "lastName")
private String lastName;
#Column(name = "address")
private String address;
#Column(name = "country")
private String country;
#Column(name = "apartmentNo")
private String apartmentNo;
#Column(name = "state")
private String state;
#Column(name = "city")
private String city;
#Column(name = "zipcode")
private String zipcode;
public Address() {
}
public Address(String firstName, String lastName, String address, String country, String apartmentNo, String state,
String city, String zipcode) {
this.firstName = firstName;
this.lastName = lastName;
this.address = address;
this.country = country;
this.apartmentNo = apartmentNo;
this.state = state;
this.city = city;
this.zipcode = zipcode;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public String getCountry() {
return country;
}
public void setCountry(String country) {
this.country = country;
}
public String getApartmentNo() {
return apartmentNo;
}
public void setApartmentNo(String apartmentNo) {
this.apartmentNo = apartmentNo;
}
public String getState() {
return state;
}
public void setState(String state) {
this.state = state;
}
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
public String getZipcode() {
return zipcode;
}
public void setZipcode(String zipcode) {
this.zipcode = zipcode;
}
}
PaymentInfo.java:
package com.clothingfly.order.Model;
import javax.persistence.*;
#Entity
#Table(name = "payments")
public class PaymentInfo {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
private long id;
#Column(name = "cardHolder")
private String cardHolder;
#Column(name = "cardNumber")
private String cardNumber;
#Column(name = "expirationDate")
private String expirationDate;
#Column(name = "cvv")
private String cvv;
public PaymentInfo(String cardHolder, String cardNumber, String expirationDate, String cvv) {
this.cardHolder = cardHolder;
this.cardNumber = cardNumber;
this.expirationDate = expirationDate;
this.cvv = cvv;
}
public String getCardHolder() {
return cardHolder;
}
public void setCardHolder(String cardHolder) {
this.cardHolder = cardHolder;
}
public String getCardNumber() {
return cardNumber;
}
public void setCardNumber(String cardNumber) {
this.cardNumber = cardNumber;
}
public String getExpirationDate() {
return expirationDate;
}
public void setExpirationDate(String expirationDate) {
this.expirationDate = expirationDate;
}
public String getCvv() {
return cvv;
}
public void setCvv(String cvv) {
this.cvv = cvv;
}
}
I'm getting the following error when trying to run microservice:
Unable to build Hibernate SessionFactory; nested exception is org.hibernate.MappingException: Could not determine type for: com.clothingfly.order.Model.Address, at table: orders, for columns: [org.hibernate.mapping.Column(address)]
How would I go about fixing this?
I want to be able to display all of my models inside a table.
I tried changing Address model so that it only returns a string of the city, but that seemed to cause more issues than anything.
Note, one to one will always cause you an issue, always better to implement many to one and one to many. and add it to both entities you are mapping. It will do the same job with no errors.
First, create packages, and don't place everything in one package.
create
package com.clothingfly.repo or com.clothingfly.order.repo
package com.clothingfly.controller or com.clothingfly.order.controller
Secondly, add the annotation #Repository to your repository interface
package com.clothingfly.repo;
import org.springframework.data.jpa.repository.JpaRepository;
import com.clothingfly.order.Model.Order;
#Repository
public interface TempOrderRepository extends JpaRepository<Order, Long>{
}
Thirdly, add the annotation #EnableJpaRepositories(basePackages = "com.clothingfly.repo") to your main application class.
package com.clothingfly.order;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication
#EnableJpaRepositories(basePackages = "com.clothingfly.repo")
public class OrderApplication {
public static void main(String[] args) {
SpringApplication.run(OrderApplication.class, args);
}
}
Lastly, this will not work correctly. Not sure what you are doing here.
#Column(name = "Address")
private Address address;
Try this:
add this in your address entity
#ManyToOne(fetch = FetchType.LAZY, optional = false)
#JoinColumn(name="order_id", nullable = false)// add this column
// order_id in your Address database not the entity
#OnDelete(action = OnDeleteAction.CASCADE)
#JsonIgnore
private Order order;
Then, add this to your Order class.
#OneToMany(fetch = FetchType.LAZY, cascade = CascadeType.ALL, mappedBy="order")
#OnDelete(action = OnDeleteAction.CASCADE)
#JsonIgnore
List<Address> address = new ArrayList<Address>(); // I use list cause sometimes it throws an error
// try to simply use this, if it throws expection then use the list
//private Address address;
Your Order constructor should be like:
public Order(long id, List<Address> address ...etc
Or simply
public Order(long id, Address address ...etc
Do this for all your mapped entities and don't forget to add setters and getters for all fields.
you have to tell hibernate that the Address object is coming from another table and how to join those tables, since your orders table most likely does not have a column which contains the hole address but the the address id/ primary key of the address as foreign key.
this is possible, depending if you have 1:1, 1:n, n:1 or n:m relations with the corresponding #OneToOne, #OneToMany, #ManyToOne and #ManyToMany annotations.
for your example it could be something like
#OneToOne
#JoinColumn(name = "address_id", referencedColumnName = "id")
private Address address;
Need to fetch data from one table to another.I performed jpa one to many mapping. But id cannot fetched. Where is my mistake?
I have tried mapping using one to many and many to one concepts but can't able to fetch data from one table to another
User.java
#Entity
#Table(name = "users")
public class User implements Serializable{
private static final long serialVersionUID = 1L;
#Id
#Column(name = "User_ID")
#GeneratedValue(generator="system-uuid")
#GenericGenerator(name="system-uuid", strategy = "uuid")
private String id;
private String firstName;
private String lastName;
private Long phoneNumber;
#NotNull(message="Password is compulsory")
#Email(message = "Email is invalid")
private String email;
private String password;
#OneToMany(mappedBy="user", cascade = CascadeType.ALL)
Set<Data> data = new HashSet<Data>();
public Set<Data> getData() {
return data;
}
public void setData(Set<Data> data) {
this.data = data;
}
public User() {
super();
}
Data.java
#Entity
#Table(name = "data")
public class Data implements Serializable{
private static final long serialVersionUID = 1L;
#Id
#Column(name = "DataID")
#GeneratedValue(generator="system-uuid")
#GenericGenerator(name="system-uuid", strategy = "uuid")
private String id;
#ManyToOne(fetch = FetchType.EAGER,cascade= CascadeType.ALL)
#JoinColumn(name = "User_ID")
private User user;
public Data() {
super();
}
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
DataController.java
#PostMapping("/data/{userId}")
public Data createData(
#PathVariable(value= "userId") String userId,
#Valid #RequestBody Data data) {
return userRepository.findById(userId).map(user -> {
data.setUser(user);
return dataRepository.save(data);
}).orElseThrow(() -> new ResourceNotFoundException("userId" + userId +
"not found"));
}
Results in no error but can't able to fetch user id
I am developing a web application in spring-boot, where a user can search for users using a search field. The users being searched (which depends on the value typed into the input field) will be queried according to their username, first name and last-name. This is my UserModel :
#Component
#Entity
#Table(name = "Users")
public class User extends DefaultEntity {
#Column(name = "FirstName")
#NotNull(message = "Enter a FirstName")
private String firstName;
#Column(name = "LastName")
#NotBlank(message = "Enter a LastName")
private String lastName;
#Column(unique = true,name = "UserName")
#NotBlank(message = "Enter a UserName")
private String userName;
#Column(unique = true, name = "Email")
#NotBlank(message = "Please enter an Email address")
#Email(message = "Enter a valid Email")
private String email;
#Column(name = "Password")
#NotBlank(message = "Enter a Password")
private String password;
#Enumerated(EnumType.STRING)
#Column(name = "Gender")
private Gender gender;
#Column(name = "Address")
#NotBlank(message = "Please enter your Home Address")
private String address;
#Column(name = "Country")
#NotBlank(message = "Please enter your Country")
private String country;
#Column(name = "Picture")
private String picture;
#Column(unique = true, name = "PhoneNumber") //make this accept only numbers
private String phoneNumber;
#Column(name = "Bio")
private String bio;
#Enumerated(EnumType.STRING)
#Column(name = "OnlineStatus")
private OnlineStatus onlineStatus;
#Enumerated(EnumType.STRING)
#Column(name = "UserType")
private UserType userType;
#Column(name = "Money")
private double money;
//#MapsId()
#OneToOne(cascade = CascadeType.ALL, fetch = FetchType.EAGER)
#JoinColumn(name = "playerstats")
private PlayerStats playerStats;
//columnDefinition = "tinyint default false"
#Column(name = "locked",columnDefinition = "BOOL default false")
private Boolean locked;
#Transient
private MultipartFile file;
public String getFirstName() {
return firstName;
}
public User setFirstName(String firstName) {
this.firstName = firstName;
return this;
}
public String getLastName() {
return lastName;
}
public User setLastName(String lastName) {
this.lastName = lastName;
return this;
}
public String getUserName() {
return userName;
}
public User setUserName(String userName) {
this.userName = userName;
return this;
}
public String getEmail() {
return email;
}
public User setEmail(String email) {
this.email = email;
return this;
}
public String getPassword() {
return password;
}
public User setPassword(String password) {
this.password = password;
return this;
}
public Enum.Gender getGender() {
return gender;
}
public User setGender(Enum.Gender gender) {
this.gender = gender;
return this;
}
public String getAddress() {
return address;
}
public User setAddress(String address) {
this.address = address;
return this;
}
public String getCountry() {
return country;
}
public User setCountry(String country) {
this.country = country;
return this;
}
public String getPicture() {
return picture;
}
public User setPicture(String picture) {
this.picture = picture;
return this;
}
public String getBio() {
return bio;
}
public User setBio(String bio) {
this.bio = bio;
return this;
}
public Enum.OnlineStatus getOnlineStatus() {
return onlineStatus;
}
public User setOnlineStatus(Enum.OnlineStatus onlineStatus) {
this.onlineStatus = onlineStatus;
return this;
}
public Enum.UserType getUserType() {
return userType;
}
public User setUserType(Enum.UserType userType) {
this.userType = userType;
return this;
}
public double getMoney() {
return money;
}
public User setMoney(double money) {
this.money = money;
return this;
}
public String getPhoneNumber() {
return phoneNumber;
}
public User setPhoneNumber(String phoneNumber) {
this.phoneNumber = phoneNumber;
return this;
}
public MultipartFile getFile() {
return file;
}
public User setFile(MultipartFile file) {
this.file = file;
return this;
}
public PlayerStats getPlayerStats() {
return playerStats;
}
public User setPlayerStats(PlayerStats playerStats) {
this.playerStats = playerStats;
return this;
}
public Boolean getLocked() {
return locked;
}
public void setLocked(Boolean locked) {
this.locked = locked;
}
}
this is my method for querying the usermodel in my UserRepository :
#Repository
public interface UserRepository extends JpaRepository<User,Long> {
Page<User> findUsersByUserNameContainingOrFirstNameContainingOrLastNameContaining(String UserName, String FirstName, String LastName, Pageable pageable);
}
My question: Is there a better way or more efficient way to achieve querying the user entity ?
As mentioned in the comments, what you're looking for is a fuzzy search. This is not something you can easily do within a database, but there are separate search engines that you can use:
Apache Solr (platform based on Apache Lucene)
ElasticSearch
Hibernate Search (Hibernate integration with Apache Lucene)
...
When using such solution, you'll have to index your entities into your search engine as well. Spring Data can help you with that since there is also a library for Solr.
First of all you need a new class that represents how your entity will look like in Solr. Be aware that you want to "flatten" everything if you would have nested relations:
#Document
public class UserDocument {
#Id
#Indexed("id")
private String id;
#Indexed("firstName")
private String firstName;
#Indexed("lastName")
private String lastName;
#Indexed("userName")
private String userName;
// ...
}
After that, you can write a repository like you're used to with Spring Data:
public interface UserDocumentRepository extends SolrCrudRepository<UserDocument, String> {
#Query("userName:?0 OR firstName:?0 OR lastName:?0")
List<UserDocument> findAll(String searchTerm);
}
After that, you can do something like this:
public User create(User input) {
// Create user in database
documentRepository.save(new UserDocument(input.getFirstName(), input.getLastName(), input.getUserName());
}
And you can query for fuzzy searches by using the repository as well:
documentRepository.findAll("vickz~3");
This will use the query that I just wrote, and will look first firstnames, lastnames or usernames containing vickz. The ~3 at the end is a special syntax to indicate that the name can be 3 characters different from the one I just used (= edit distance).
However, this will return the UserDocument Solr entities. If you want to get the entities, you'll have to look them up as well, which can be done by their username:
List<String> usernames = documentRepository
.findAll("vickz~3")
.stream()
.map(UserDocument::getUserName)
.collect(Collectors.toList());
repository.findByUsername(usernames); // Look in database for users matching those usernames
In our spring boot Restful WebService, we have two master tables with many-to-many relationship between them. But in the transaction table, we want one extra field (current_time) as part of the embedded key other than the primary keys of the two tables. Now, we’ve created a separate class for defining embedded primary key using #Embeddable. Now, while inserting one transaction row to transaction table using Spring JPA, I am manually setting the primary keys in the corresponding entity and calling the save method on corresponding repository. But It is giving me ConstraintViolationException as the current_time is going with null value even if I have manually set it. Any help would be highly appreciated.
First Entity is as follows :
#Entity
#Table(name = "project")
public class Project {
#Id
#GenericGenerator(name = "projectid", strategy = "com.sample.upload.entity.ProjectIDGenerator")
#GeneratedValue(generator = "projectid")
#Column(name = "projectid")
private String projectID;
#Column(name = "project_name")
private String projectName;
#Column(name = "project_descr")
private String projectDesc;
#Column(name = "project_input_path")
private String projectPath;
#Column(name = "project_creation_time")
private Calendar projectCreationTime;
#ManyToMany(cascade = CascadeType.ALL)
#JoinTable(name = "project_migration", joinColumns = #JoinColumn(name = "projectid", referencedColumnName = "projectid"), inverseJoinColumns = #JoinColumn(name = "migratorid", referencedColumnName = "migratorid"))
private List<Migrator> migrators;
#Column(name = "account_name")
private String accountName;
#Column(name = "account_group")
private String accountGroup;
public String getProjectID() {
return projectID;
}
public void setProjectID(String projectID) {
this.projectID = projectID;
}
public String getAccountName() {
return accountName;
}
public void setAccountName(String accountName) {
this.accountName = accountName;
}
public String getAccountGroup() {
return accountGroup;
}
public void setAccountGroup(String accountGroup) {
this.accountGroup = accountGroup;
}
public String getProjectName() {
return projectName;
}
public void setProjectName(String projectName) {
this.projectName = projectName;
}
public String getProjectDesc() {
return projectDesc;
}
public void setProjectDesc(String projectDesc) {
this.projectDesc = projectDesc;
}
public String getProjectPath() {
return projectPath;
}
public void setProjectPath(String projectPath) {
this.projectPath = projectPath;
}
public Calendar getProjectCreationTime() {
return projectCreationTime;
}
public void setProjectCreationTime(Calendar projectCreationTime) {
this.projectCreationTime = projectCreationTime;
}
public List<Migrator> getMigrators() {
return migrators;
}
public void setMigrators(List<Migrator> migrators) {
this.migrators = migrators;
}
}
Second Entity :
#Entity
#GenericGenerator(name = "generatorName", strategy = "increment")
#Table(name = "migrator")
public class Migrator {
#Id
#GeneratedValue(generator = "generatorName")
#Column(name = "migratorid")
private String migratorId;
#Column(name = "src_tech_name")
private String srcTechName;
#Column(name = "dest_tech_name")
private String destTechName;
#Column(name = "migrator_name")
private String migratorName;
#Column(name = "migrator_type")
private String migratorType;
public String getMigratorId() {
return migratorId;
}
public void setMigratorId(String migratorId) {
this.migratorId = migratorId;
}
public String getSrcTechName() {
return srcTechName;
}
public void setSrcTechName(String srcTechName) {
this.srcTechName = srcTechName;
}
public String getDestTechName() {
return destTechName;
}
public void setDestTechName(String destTechName) {
this.destTechName = destTechName;
}
public String getMigratorName() {
return migratorName;
}
public void setMigratorName(String migratorName) {
this.migratorName = migratorName;
}
public String getMigratorType() {
return migratorType;
}
public void setMigratorType(String migratorType) {
this.migratorType = migratorType;
}
#Override
public String toString() {
return "Technology [migratorId=" + migratorId + ", srcTechName=" + srcTechName + ", destTechName="
+ destTechName + ", migratorName=" + migratorName + ", migratorType=" + migratorType + "]";
}
}
The join (transaction) table's entity :
#Entity
#Table(name = "project_migration")
public class ProjectMigration {
#EmbeddedId
private ProjectMigrationID migrationId;
#Column(name ="migration_finish_time")
private Calendar migrationFinishTime;
#Column(name ="time_in_millis_for_migration")
private long timeInMillisForMigration;
#Column(name ="migration_status")
private String migrationStatus;
#Column(name ="migrated_codebase_path")
private String migratedCodeBasePath;
The embedded Primary Key class is as follows:
#Embeddable
public class ProjectMigrationID implements Serializable {
private static final long serialVersionUID = -3623993529011381924L;
#Column(name = "projectid")
private String projectId;
#Column(name = "migratorid")
private String migratorId;
#Column(name = "migration_start_time")
private Calendar migrationStartTime;
public ProjectMigrationID() {
}
public ProjectMigrationID(String projectId, String migratorId, Calendar migrationStartTime) {
this.projectId = projectId;
this.migratorId = migratorId;
this.migrationStartTime = migrationStartTime;
}
The snippet from service Class :
for (String migratorId : data.getMigratorIds()) {
Migrator migrator = migratorRepository.findByMigratorId(migratorId);
migrators.add(migrator);
}
if (projectId != null) {
project = projectRepository.findByProjectID(projectId);
System.out.println(project==null);
project.setMigrators(migrators);
System.out.println("I am here");
if (project != null) {
//project.setMigrationStatus("In Progress");
ProjectMigrationID pmId = new ProjectMigrationID();
pmId.setProjectId(project.getProjectID());
pmId.setMigratorId(project.getMigrators().get(0).getMigratorId());
pmId.setMigrationStartTime(new GregorianCalendar());
ProjectMigration pm = new ProjectMigration();
pm.setMigrationId(pmId);
pm.setMigrationStatus("Pending");
projectMigrationRepository.save(pm);
That's because of the #JoinTable where the date is not included and it skips the insertion. If you include a column with all the primary keys needed, it will work as expected.
Only the columns mapped via #JoinTable will be included during insertion or update (defaults to true when mapped)
Either include the date time column in the Project class or use association without #JoinTable.
I'm editing via mobile. So please ignore typos if any.
I am making a web based app in spring/hibernate. In database I am using onetomany and manytoone relations. I have manytoone relationship in users for location and onetomany relationship for users in location. In both entities I have lazy loading option turned on. As per my understanding if this is turned on, the database query to get the location should not be executed until explicitly called for it but whenever I do a get from the userdao the below query is executed which makes me think that even after having the lazy option turned on it is retrieving the location information. Can anyone let me know what am I doing wrong or is this the expected behavior.
Below is my user entity code
package com.kwisque.database.model;
import java.io.Serializable;
import java.util.HashSet;
import java.util.Set;
import javax.persistence.*;
#Entity
#Table(name = "USERS")
public class User implements Serializable{
#Id
#Column(name = "USER_ID", unique = true, nullable = false)
private String userId;
#Column(name = "NAME", nullable = true, length = 32)
private String name;
#Column(name = "PASSWORD", nullable = false, length = 64)
private String password;
#Column(name = "EMAIL_ID", nullable = true, length = 128)
private String emailId;
#Column(name = "ACTIVE", nullable = false, length = 1)
private Integer active;
#Column(name = "PROVIDER", nullable = false, length = 32)
private String provider;
#ManyToMany(fetch = FetchType.EAGER,cascade = CascadeType.ALL)
#JoinTable(
name = "USER_ROLE",
joinColumns = #JoinColumn(name = "USER_ID"),
inverseJoinColumns = #JoinColumn(name = "ROLE_ID")
)
private Set<Role> roles = new HashSet<>();
//#ManyToOne(fetch = FetchType.LAZY)
//#JoinColumn(name = "LOCATION_ID", nullable = true)
#ManyToOne(fetch=FetchType.LAZY, cascade={javax.persistence.CascadeType.ALL})
#JoinTable(name="USER_LOCATION_INFO",
joinColumns={#javax.persistence.JoinColumn(name="USER_ID")},
inverseJoinColumns={#javax.persistence.JoinColumn(name="LOCATION_ID")})
private Location location;
// #OneToMany(fetch = FetchType.LAZY)
// #JoinColumn(name = "SPECIALIZATION_ID", nullable = true)
#OneToMany(fetch=FetchType.LAZY, cascade={javax.persistence.CascadeType.ALL})
#JoinTable(name="USER_SPECIALIZATION_INFO",
joinColumns={#javax.persistence.JoinColumn(name="USER_ID")},
inverseJoinColumns={#javax.persistence.JoinColumn(name="SPECIALIZATION_ID")})
private Set<Specialization> specialization = new HashSet<>();
public User() {
}
public User(final String userId, final String name, final String password, final String emailId, final Integer active, final String provider, final Set<Role> roles, final Location location) {
this.userId = userId;
this.name = name;
this.password = password;
this.emailId = emailId;
this.active = active;
this.provider = provider;
this.roles = roles;
this.location = location;
}
public String getUserId() {
return userId;
}
public void setUserId(final String userId) {
this.userId = userId;
}
public String getName() {
return name;
}
public void setName(final String name) {
this.name = name;
}
public String getPassword() {
return password;
}
public void setPassword(final String password) {
this.password = password;
}
public Integer getActive() {
return active;
}
public void setActive(final Integer active) {
this.active = active;
}
public Set<Role> getRoles() {
return roles;
}
public void setRoles(final Set<Role> roles) {
this.roles = roles;
}
public String getProvider() {
return provider;
}
public void setProvider(final String provider) {
this.provider = provider;
}
public String getEmailId() {
return emailId;
}
public void setEmailId(final String emailId) {
this.emailId = emailId;
}
public Location getLocation() {
return location;
}
public void setLocation(final Location location) {
this.location = location;
}
}
Location entity code
package com.kwisque.database.model;
import java.io.Serializable;
import java.util.Set;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.OneToMany;
import javax.persistence.Table;
import com.fasterxml.jackson.annotation.JsonIgnore;
#Entity
#Table(name = "LOCATION")
public class Location implements Serializable {
private static final long serialVersionUID = -7153748534015057865L;
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
#Column(name = "LOCATION_ID", unique = true, nullable = false)
private Integer locationId;
#Column(name = "ZIP_CODE", nullable = true, length = 132)
private String zipCode;
#Column(name = "STATE_ABBR", nullable = true, length = 132)
private String stateAbbr;
#Column(name = "LATITUDE", nullable = true, length = 132)
private double latitude;
#Column(name = "LONGITUDE", nullable = true, length = 132)
private double longitude;
#Column(name = "CITY", nullable = true, length = 132)
private String city;
#Column(name = "STATE", nullable = true, length = 132)
private String state;
#JsonIgnore
#OneToMany(fetch = FetchType.LAZY, mappedBy = "location")
private Set<User> users;
public double getLatitude() {
return this.latitude;
}
public void setLatitude(double latitude) {
this.latitude = latitude;
}
public double getLongitude() {
return this.longitude;
}
public void setLongitude(double longitude) {
this.longitude = longitude;
}
public Location() {
}
public Location(Integer locationId, long longitude, String city, long latitude, String zipCode, String state,
String stateAbbr, Set<User> users) {
this.locationId = locationId;
this.longitude = longitude;
this.latitude = latitude;
this.city = city;
this.state = state;
this.stateAbbr = stateAbbr;
this.users = users;
}
public Integer getLocationId() {
return this.locationId;
}
public void setLocationId(Integer locationId) {
this.locationId = locationId;
}
#JsonIgnore
public Set<User> getUser() {
return this.users;
}
#JsonIgnore
public void setUser(Set<User> users) {
this.users = users;
}
public String getCity() {
return this.city;
}
public void setCity(String city) {
this.city = city;
}
public String getState() {
return this.state;
}
public void setState(String state) {
this.state = state;
}
public String getZipCode() {
return this.zipCode;
}
public void setZipCode(String zipCode) {
this.zipCode = zipCode;
}
public String getStateAbbr() {
return this.stateAbbr;
}
public void setStateAbbr(String stateAbbr) {
this.stateAbbr = stateAbbr;
}
}
Query being executed at my get from USerDao
Hibernate: select user0_.USER_ID as USER_ID1_3_0_, user0_.ACTIVE as ACTIVE2_3_0_, user0_.EMAIL_ID as EMAIL_ID3_3_0_, user0_.NAME as NAME4_3_0_, user0_.PASSWORD as PASSWORD5_3_0_, user0_.PROVIDER as PROVIDER6_3_0_, user0_1_.LOCATION_ID as LOCATION1_4_0_, roles1_.USER_ID as USER_ID1_3_1_, role2_.ROLE_ID as ROLE_ID2_5_1_, role2_.ROLE_ID as ROLE_ID1_1_2_, role2_.NAME as NAME2_1_2_ from USERS user0_ left outer join USER_LOCATION_INFO user0_1_ on user0_.USER_ID=user0_1_.USER_ID left outer join USER_ROLE roles1_ on user0_.USER_ID=roles1_.USER_ID left outer join ROLE role2_ on roles1_.ROLE_ID=role2_.ROLE_ID where user0_.USER_ID=?