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Realm Migration is not working in Android?

I am at present working on a android chat application like whatsapp but I stuck at a situation in where Realm Migration is issue. I am not knowing so much about realm but testing it for a successful offline chat application. I am not able to use more than one model in realm because it is saying about the migrator. I tried all the ways but my migrator is not working and I also not having idea that what statements I have to use after this (schema.) statement for migrate my model according to my situations.
Here is the Code for my Realm ChatList Model:-
public class RealmChatListModel extends RealmObject {
#Index
private String userID;
private String Username;
private String Descryption;
private String phoneNo;
private String lastMessage;
private String Date;
private String ImageURI;
private long lastMessageTime;
public RealmChatListModel() {
}
public String getUserID() {
return userID;
}
public void setUserID(String userID) {
this.userID = userID;
}
public String getUsername() {
return Username;
}
public void setUsername(String username) {
Username = username;
}
public String getDescryption() {
return Descryption;
}
public void setDescryption(String descryption) {
Descryption = descryption;
}
public String getPhoneNo() {
return phoneNo;
}
public void setPhoneNo(String phoneNo) {
this.phoneNo = phoneNo;
}
public String getLastMessage() {
return lastMessage;
}
public void setLastMessage(String lastMessage) {
this.lastMessage = lastMessage;
}
public String getDate() {
return Date;
}
public void setDate(String date) {
Date = date;
}
public String getImageURI() {
return ImageURI;
}
public void setImageURI(String imageURI) {
ImageURI = imageURI;
}
public long getLastMessageTime() {
return lastMessageTime;
}
public void setLastMessageTime(long lastMessageTime) {
this.lastMessageTime = lastMessageTime;
}
}
And here is my code for realm Chat Model :-
public class RealmChat extends RealmObject {
#PrimaryKey
#Index
private String messageKey;
private String time;
private String date;
private String textMessage;
private String type;
private String sender;
private String receiver;
private String uri;
private boolean isSeen;
private String duration;
private String receivername;
private String fileSize;
private boolean isNextDay;
private boolean isDeleted;
private Date extactdate;
private String repMesKey;
private String repMesUri;
private String repMesText;
private String repMesType;
private String repMesSender;
private long timestamp;
private String repMesSendPhone;
private boolean isReplied;
private String phoneNo;
private boolean isForwarded;
public String getMessageKey() {
return messageKey;
}
public void setMessageKey(String messageKey) {
this.messageKey = messageKey;
}
public String getTime() {
return time;
}
public void setTime(String time) {
this.time = time;
}
public String getDate() {
return date;
}
public void setDate(String date) {
this.date = date;
}
public String getTextMessage() {
return textMessage;
}
public void setTextMessage(String textMessage) {
this.textMessage = textMessage;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public String getSender() {
return sender;
}
public void setSender(String sender) {
this.sender = sender;
}
public String getReceiver() {
return receiver;
}
public void setReceiver(String receiver) {
this.receiver = receiver;
}
public String getUri() {
return uri;
}
public void setUri(String uri) {
this.uri = uri;
}
public boolean isSeen() {
return isSeen;
}
public void setSeen(boolean seen) {
isSeen = seen;
}
public String getDuration() {
return duration;
}
public void setDuration(String duration) {
this.duration = duration;
}
public String getReceivername() {
return receivername;
}
public void setReceivername(String receivername) {
this.receivername = receivername;
}
public String getFileSize() {
return fileSize;
}
public void setFileSize(String fileSize) {
this.fileSize = fileSize;
}
public boolean isNextDay() {
return isNextDay;
}
public void setNextDay(boolean nextDay) {
isNextDay = nextDay;
}
public boolean isDeleted() {
return isDeleted;
}
public void setDeleted(boolean deleted) {
isDeleted = deleted;
}
public Date getExtactdate() {
return extactdate;
}
public void setExtactdate(Date extactdate) {
this.extactdate = extactdate;
}
public String getRepMesKey() {
return repMesKey;
}
public void setRepMesKey(String repMesKey) {
this.repMesKey = repMesKey;
}
public String getRepMesUri() {
return repMesUri;
}
public void setRepMesUri(String repMesUri) {
this.repMesUri = repMesUri;
}
public String getRepMesText() {
return repMesText;
}
public void setRepMesText(String repMesText) {
this.repMesText = repMesText;
}
public String getRepMesType() {
return repMesType;
}
public void setRepMesType(String repMesType) {
this.repMesType = repMesType;
}
public String getRepMesSender() {
return repMesSender;
}
public void setRepMesSender(String repMesSender) {
this.repMesSender = repMesSender;
}
public String getRepMesSendPhone() {
return repMesSendPhone;
}
public void setRepMesSendPhone(String repMesSendPhone) {
this.repMesSendPhone = repMesSendPhone;
}
public boolean isReplied() {
return isReplied;
}
public void setReplied(boolean replied) {
isReplied = replied;
}
public String getPhoneNo() {
return phoneNo;
}
public void setPhoneNo(String phoneNo) {
this.phoneNo = phoneNo;
}
public boolean isForwarded() {
return isForwarded;
}
public void setForwarded(boolean forwarded) {
isForwarded = forwarded;
}
public long getTimestamp() {
return timestamp;
}
public void setTimestamp(long timestamp) {
this.timestamp = timestamp;
}
And Here is my code for my migrator :-
public class RealmMigration implements io.realm.RealmMigration {
#Override
public void migrate(DynamicRealm realm, long oldVersion, long newVersion) {
RealmSchema schema = realm.getSchema();
// Migrate from version 0 to version 1
if (oldVersion == 0) {
schema.get("RealmChatListModel")
.addField("Username", String.class)
.addRealmListField("lastMessageTime", long.class);
oldVersion++;
}
if (oldVersion == 1) {
schema.get("RealmChat")
.addField("extactdate", Date.class)
.addRealmListField("timestamp",long.class);
}
}
public static RealmConfiguration getDefaultConfig() {
return new RealmConfiguration.Builder()
.schemaVersion(2)
.migration(new RealmMigration())
.build();
}
#Override
public int hashCode() { return RealmMigration.class.hashCode(); }
#Override
public boolean equals(Object object) { return object != null && object instanceof RealmMigration; }
}
Please Help me...................................................................................
<<<<<<<<<<<<<<<<------------------(~~~~~~~~~~~~~~~~~~~)------------------->>>>>>>>>>>>>>>>>>>>>

Yes I got it my migration is working only by a single change :-
#Override
public void migrate(DynamicRealm realm, long oldVersion, long newVersion) {
RealmSchema schema = realm.getSchema();
// Migrate from version 0 to version 1
if (oldVersion == 0) {
schema.get("RealmChatListModel")
.addField("userID", String.class, FieldAttribute.REQUIRED);
oldVersion++;
}
}
Here I removed Realm Chat from migrating the old version because it is the last model and added in realmChatListSchema that userID field is required.Noting else reqired. I am happy 🥰 🥰 🥰 .

Spring Boot Mongodb search by ID returns null

I have created a spring boot project with mongodb , when i insert data into collection it get inserted but when i try to fetch from findOne by id the inserted value based on id it always returns null, I have given my model class and inserting method below,please tell me whats wrong
Account.java
#Document(collection = "account")
public class Account {
#Id
private long _id;
#Field("account_name")
private String accountName;
#Field("connector_type")
private String connectorType;
#Field("xsiURI1")
private String xsiURI1;
#Field("xsiURI2")
private String xsiURI2;
#Field("oci1")
private String OCI1;
#Field("oci2")
private String OCI2;
#Field("telcomadmin_username")
private String telcomadminUsername;
#Field("telcomadmin_password")
private String telcomadminPassword;
#Field("password_expdays")
private String passwordExpdays;
#Field("account_email_address")
private String accountEmailAddress;
#DateTimeFormat(iso = ISO.DATE_TIME)
#Field("inserted_date")
private Date insertedDate;
#DateTimeFormat(iso = ISO.DATE_TIME)
#Field("updated_date")
private Date updatedDate;
#Field("isActive")
private Boolean isActive;
public long get_id() {
return _id;
}
public void set_id(long _id) {
this._id = _id;
}
public String getXsiURI1() {
return xsiURI1;
}
public void setXsiURI1(String xsiURI1) {
this.xsiURI1 = xsiURI1;
}
public String getXsiURI2() {
return xsiURI2;
}
public void setXsiURI2(String xsiURI2) {
this.xsiURI2 = xsiURI2;
}
public String getOCI1() {
return OCI1;
}
public void setOCI1(String oCI1) {
OCI1 = oCI1;
}
public String getOCI2() {
return OCI2;
}
public void setOCI2(String oCI2) {
OCI2 = oCI2;
}
public String getAccountName() {
return accountName;
}
public void setAccountName(String accountName) {
this.accountName = accountName;
}
public String getConnectorType() {
return connectorType;
}
public void setConnectorType(String connectorType) {
this.connectorType = connectorType;
}
public String getTelcomadminUsername() {
return telcomadminUsername;
}
public void setTelcomadminUsername(String telcomadminUsername) {
this.telcomadminUsername = telcomadminUsername;
}
public String getTelcomadminPassword() {
return telcomadminPassword;
}
public void setTelcomadminPassword(String telcomadminPassword) {
this.telcomadminPassword = telcomadminPassword;
}
public String getPasswordExpdays() {
return passwordExpdays;
}
public void setPasswordExpdays(String passwordExpdays) {
this.passwordExpdays = passwordExpdays;
}
public String getAccountEmailAddress() {
return accountEmailAddress;
}
public void setAccountEmailAddress(String accountEmailAddress) {
this.accountEmailAddress = accountEmailAddress;
}
public Date getInsertedDate() {
return insertedDate;
}
public void setInsertedDate(Date insertedDate) {
this.insertedDate = insertedDate;
}
public Date getUpdatedDate() {
return updatedDate;
}
public void setUpdatedDate(Date updatedDate) {
this.updatedDate = updatedDate;
}
public Boolean getIsActive() {
return isActive;
}
public void setIsActive(Boolean isActive) {
this.isActive = isActive;
}
}
AccountsController.java
#RestController
#RequestMapping("/accounts")
#CrossOrigin("*")
public class AccountsController {
#Autowired
AccountsRepository accountsRepository;
#Autowired
SequenceRepository sequenceRepository;
private static final String ACCOUNT_SEQ_KEY = "accountsequence";
#PostMapping("/create")
public Account createAccount(#Valid #RequestBody Account account) {
account.set_id(sequenceRepository.getNextSequenceId(ACCOUNT_SEQ_KEY));
account.setIsActive(true);
return accountsRepository.save(account);
}
#GetMapping(value = "/findByID/{id}")
public ResponseEntity<Account> getAccountById(#PathVariable("id") String id) {
Account account = accountsRepository.findOne(id);
if (account == null) {
return new ResponseEntity<>(HttpStatus.NOT_FOUND);
} else {
return new ResponseEntity<>(account, HttpStatus.OK);
}
}
}
AccountsRepository
public interface AccountsRepository {
List<Account> findAll(Sort sortByCreatedAtDesc);
Account save(Account account);
Account findOne(String id);
void delete(String id);
}
AccountsRepositoryIMPL
#Repository
public class AccountsRepositoryImpl implements AccountsRepository {
DBOperations dbOperations = new DBOperations();
#Override
public List<Account> findAll(Sort sortByCreatedAtDesc) {
Query q = new Query().with(new Sort(Sort.Direction.ASC, "inserted_date"));
List<Account> accountList = dbOperations.getMongoOpertion().findAllAndRemove(q, Account.class);
return accountList;
}
#Override
public Account save(Account account) {
try {
dbOperations.getMongoOpertion().save(account);
} catch (Exception e) {
e.printStackTrace();
}
return account;
}
#Override
public Account fin**strong text**dOne(String id) {
Account account = dbOperations.getMongoOpertion().findOne(Query.query(Criteria.where("_id").is(id)),
Account.class, "account");
return account;
}
#Override
public void delete(String id) {
Query query = new Query();
query.addCriteria(Criteria.where("id").is(id));
Account account = dbOperations.getMongoOpertion().findOne(query, Account.class);
dbOperations.getMongoOpertion().remove(account);
}
}
DBOperations.java
public class DBOperations {
ApplicationContext ctx = new GenericXmlApplicationContext("SpringConfig.xml");
public MongoOperations getMongoOpertion() {
MongoOperations mongoOperation = (MongoOperations) ctx.getBean("mongoTemplate");
return mongoOperation;
}
}

Look at your code.
You have declared _id as Long type.
#Id
private long _id;
But in your below methods you are passing String id to match the criteria.
So it is not working.
#Override
public Account findOne(String id) {
Account account = dbOperations.getMongoOpertion().findOne(Query.query(Criteria.where("_id").is(id)),
Account.class, "account");
return account;
}
#Override
public void delete(String id) {
Query query = new Query();
query.addCriteria(Criteria.where("id").is(id));
Account account = dbOperations.getMongoOpertion().findOne(query, Account.class);
dbOperations.getMongoOpertion().remove(account);
}

Extending super class attribute

I have a class Wallet, which extends to 3 different wallets PaypalWallet, BankWallet and ChequeWallet. Each with different attributes save the super class attributes.
These wallets are used in Payout, which extends 2 payments, PaymentBank and PayoutCheque.
public class Payout {
#Id private String id;
private String userId;
protected Wallet userWalletInfo;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getUserId() {
return userId;
}
public void setUserId(String userId) {
this.userId = userId;
}
public Wallet getUserWalletInfo() {
return userWalletInfo;
}
public void setUserWalletInfo(Wallet userWalletInfo) {
this.userWalletInfo = userWalletInfo;
}
}
If I inherit this class in the ChequePayout, how can I specify that userWalletInfo should be an instance of ChequeWallet? Similar to extending the class?
My first thought was to override the setter, like this:
public class PayoutCheque extends Payout {
private String serialNumber;
private ChequeStatus status;
public String getSerialNumber() {
return serialNumber;
}
public void setSerialNumber(String serialNumber) {
this.serialNumber = serialNumber;
}
public ChequeStatus getStatus() {
return status;
}
public void setStatus(ChequeStatus status) {
this.status = status;
}
#Override
public void setUserWalletInfo(Wallet userWalletInfo) {
if (userWalletInfo instanceof ChequeWallet) {
super.setUserWalletInfo(userWalletInfo);
}
else {
//throw exception
}
}
}
However I don't feel like this is the right approach, or that I am missing something important here.

Sounds like you are looking for generics.
private class Wallet {
}
private class ChequeStatus {
}
private class ChequeWallet extends Wallet {
}
public class Payout<W extends Wallet> {
private String id;
private String userId;
protected W userWalletInfo;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getUserId() {
return userId;
}
public void setUserId(String userId) {
this.userId = userId;
}
public Wallet getUserWalletInfo() {
return userWalletInfo;
}
public void setUserWalletInfo(W userWalletInfo) {
this.userWalletInfo = userWalletInfo;
}
}
public class PayoutCheque extends Payout<ChequeWallet> {
private String serialNumber;
private ChequeStatus status;
public String getSerialNumber() {
return serialNumber;
}
public void setSerialNumber(String serialNumber) {
this.serialNumber = serialNumber;
}
public ChequeStatus getStatus() {
return status;
}
public void setStatus(ChequeStatus status) {
this.status = status;
}
#Override
public void setUserWalletInfo(ChequeWallet userWalletInfo) {
super.setUserWalletInfo(userWalletInfo);
}
}

if(userWalletInfo.getClass().equals(ChequeWallet.class)){
}

Realm object not fully persisted

I'm having trouble trying to understand how realm.io persist/save objects.
I have 3 Objects (Inventory, InventoryItem and Product);
When I create a Inventory containing InventoryItems it works fine until i close the app. When i re-open the app all InventoryItems loses the reference to Product and start to show "null" instead.
Strange thing is all other attributes like Inventory reference to InventoryItem is persisted fine. Just problem with Products.
this is how i'm trying to do:
Model
Product
public class Product extends RealmObject {
#PrimaryKey
private String id;
#Required
private String description;
private int qtdUnityType1;
private int qtdUnityType2;
private int qtdUnityType3;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public int getQtdUnityType1() {
return qtdUnityType1;
}
public void setQtdUnityType1(int qtdUnityType1) {
this.qtdUnityType1 = qtdUnityType1;
}
public int getQtdUnityType2() {
return qtdUnityType2;
}
public void setQtdUnityType2(int qtdUnityType2) {
this.qtdUnityType2 = qtdUnityType2;
}
public int getQtdUnityType3() {
return qtdUnityType3;
}
public void setQtdUnityType3(int qtdUnityType3) {
this.qtdUnityType3 = qtdUnityType3;
}
}
Inventory
public class Inventory extends RealmObject {
#PrimaryKey
private String id;
#Required
private String type;
#Required
private Date createdAt;
#Required
private String status;
public String getStatus() {
return status;
}
public void setStatus(String status) {
this.status = status;
}
private RealmList<InventoryItem> listItems;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public Date getCreatedAt() {
return createdAt;
}
public void setCreatedAt(Date createdAt) {
this.createdAt = createdAt;
}
public RealmList<InventoryItem> getListItems() {
return listItems;
}
public void setListItems(RealmList<InventoryItem> listItems) {
this.listItems = listItems;
}
}
InventoryItem
public class InventoryItem extends RealmObject {
#PrimaryKey
private String idItem;
private Inventory inventory;
private Product product;
public Product getProduct() {
return product;
}
public void setProduct(Product product) {
this.product = product;
}
private Date expirationDate;
private int qtdUnityType1;
private int qtdUnityType2;
private int qtdUnityType3;
private int qtdDiscard;
public String getIdItem() {
return idItem;
}
public void setIdItem(String idItem) {
this.idItem = idItem;
}
public Inventory getInventory() {
return inventory;
}
public void setInventory(Inventory inventory) {
this.inventory = inventory;
}
public Date getExpirationDate() {
return expirationDate;
}
public void setExpirationDate(Date expirationDate) {
this.expirationDate = expirationDate;
}
public int getQtdUnityType1() {
return qtdUnityType1;
}
public void setQtdUnityType1(int qtdUnityType1) {
this.qtdUnityType1 = qtdUnityType1;
}
public int getQtdUnityType2() {
return qtdUnityType2;
}
public void setQtdUnityType2(int qtdUnityType2) {
this.qtdUnityType2 = qtdUnityType2;
}
public int getQtdUnityType3() {
return qtdUnityType3;
}
public void setQtdUnityType3(int qtdUnityType3) {
this.qtdUnityType3 = qtdUnityType3;
}
public int getQtdDiscard() {
return qtdDiscard;
}
public void setQtdDiscard(int qtdDiscard) {
this.qtdDiscard = qtdDiscard;
}
}
and finally one of the millions ways i tried to persist
realm.beginTransaction();
Inventory inventory = realm.createObject(Inventory.class);
inventory.setId(id);
inventory.setCreatedAt(new DateTime().toDate());
if (radioGroup.getCheckedRadioButtonId() == R.id.rbInventario) {
inventory.setType("Inventário");
} else {
inventory.setType("Validade");
}
inventory.setStatus("Aberto");
RealmList<InventoryItem> inventoryItems = new RealmList<>();
RealmResults<Product> productsRealmResults = realm.allObjects(Product.class);
for (int i = 1; i <= productsRealmResults.size(); i++) {
InventoryItem item = realm.createObject(InventoryItem.class);
item.setIdProduct(productsRealmResults.get(i - 1).getId() + " - " + productsRealmResults.get(i - 1).getDescription());
item.setProduct(productsRealmResults.get(i - 1));
item.setIdItem(i + "-" + id);
item.setInventory(inventory);
item = realm.copyToRealmOrUpdate(item);
item = realm.copyToRealmOrUpdate(item);
inventoryItems.add(item);
}
inventory.setListItems(inventoryItems);
realm.copyToRealmOrUpdate(inventory);
realm.commitTransaction();
I already looked trough some answers here like this one:
stack answer
and the Java-examples (person, dog, cat)
provided with the API
but I can't understand how to properly insert this.

The problem is that you are setting a list of InventoryItem elements which are not added to the Realm database.
Change InventoryItem item = new InventoryItem(); to InventoryItem item = realm.createObject(InventoryItem.class);
Also, the inventoryItems themselves aren't stored in Realm db. Add realm.copyToRealmOrUpdate(inventoryItems) after the loop.

Hibernate JPA searching two joined tables

I am pretty new to Hibernate and JPA implementation in Spring, so basically have set up a MySQL 5 database which maps to the domain objects below.
I am trying to search for Location on the Company_Details table but I can't figure out how to search the class Product_Details for Product_Name at the same time
If anyone could help that would be great.
Company_Details
#Entity
public class Company_Details implements Serializable{
/**
*
*/
private static final long serialVersionUID = 3336251433829975771L;
#Id
#GeneratedValue
private Integer Id;
private String Company;
private String Address_Line_1;
private String Address_Line_2;
private String Postcode;
private String County;
private String Country;
private String Mobile_Number;
private String Telephone_Number;
private String URL;
private String Contact;
private String Logo_URL;
private double Amount_Overall;
private double Amount_Paid;
private Timestamp Date_Joined;
private int Account_Details;
#OneToMany(fetch = FetchType.EAGER, mappedBy = "Company_Id")
private List<Product_Details> products;
public Integer getId() {
return Id;
}
public void setId(Integer id) {
Id = id;
}
public String getCompany() {
return Company;
}
public void setCompany(String company) {
Company = company;
}
public String getAddress_Line_1() {
return Address_Line_1;
}
public void setAddress_Line_1(String address_Line_1) {
Address_Line_1 = address_Line_1;
}
public String getAddress_Line_2() {
return Address_Line_2;
}
public void setAddress_Line_2(String address_Line_2) {
Address_Line_2 = address_Line_2;
}
public String getPostcode() {
return Postcode;
}
public void setPostcode(String postcode) {
Postcode = postcode;
}
public String getCounty() {
return County;
}
public void setCounty(String county) {
County = county;
}
public String getCountry() {
return Country;
}
public void setCountry(String country) {
Country = country;
}
public String getMobile_Number() {
return Mobile_Number;
}
public void setMobile_Number(String mobile_Number) {
Mobile_Number = mobile_Number;
}
public String getTelephone_Number() {
return Telephone_Number;
}
public void setTelephone_Number(String telephone_Number) {
Telephone_Number = telephone_Number;
}
public String getURL() {
return URL;
}
public void setURL(String uRL) {
URL = uRL;
}
public String getContact() {
return Contact;
}
public void setContact(String contact) {
Contact = contact;
}
public String getLogo_URL() {
return Logo_URL;
}
public void setLogo_URL(String logo_URL) {
Logo_URL = logo_URL;
}
public double getAmount_Overall() {
return Amount_Overall;
}
public void setAmount_Overall(double amount_Overall) {
Amount_Overall = amount_Overall;
}
public double getAmount_Paid() {
return Amount_Paid;
}
public void setAmount_Paid(double amount_Paid) {
Amount_Paid = amount_Paid;
}
public Timestamp getDate_Joined() {
return Date_Joined;
}
public void setDate_Joined(Timestamp date_Joined) {
Date_Joined = date_Joined;
}
public int getAccount_Details() {
return Account_Details;
}
public void setAccount_Details(int account_Details) {
Account_Details = account_Details;
}
public List<Product_Details> getProducts() {
return products;
}
public void setProducts(List<Product_Details> products) {
this.products = products;
}
Product_Details
#Entity
public class Product_Details implements Serializable{
/**
*
*/
private static final long serialVersionUID = 6477618197240654478L;
#Id
#GeneratedValue
private Integer Id;
private Integer Company_Id;
private String Product_Name;
private String Description;
private String Main_Photo_URL;
private String Other_Photo_URLS;
private Integer Total_Bookings;
private double Average_Rating;
private Integer Number_Of_Slots;
private Integer Time_Per_Slot;
private double Price_Per_Slot;
private String Monday_Open;
private String Tuesday_Open;
private String Wednesday_Open;
private String Thursday_Open;
private String Friday_Open;
private String Saturday_Open;
private String Sunday_Open;
private String Dates_Closed;
public Integer getId() {
return Id;
}
public void setId(Integer id) {
Id = id;
}
public Integer getCompany_Id() {
return Company_Id;
}
public void setCompany_Id(Integer company_Id) {
Company_Id = company_Id;
}
public String getProduct_Name() {
return Product_Name;
}
public void setProduct_Name(String product_Name) {
Product_Name = product_Name;
}
public String getDescription() {
return Description;
}
public void setDescription(String description) {
Description = description;
}
public String getMain_Photo_URL() {
return Main_Photo_URL;
}
public void setMain_Photo_URL(String main_Photo_URL) {
Main_Photo_URL = main_Photo_URL;
}
public String getOther_Photos_URLS() {
return Other_Photo_URLS;
}
public void setOther_Photos_URLS(String other_Photo_URLS) {
Other_Photo_URLS = other_Photo_URLS;
}
public Integer getTotal_Bookings() {
return Total_Bookings;
}
public void setTotal_Bookings(Integer total_Bookings) {
Total_Bookings = total_Bookings;
}
public double getAverage_Rating() {
return Average_Rating;
}
public void setAverage_Rating(double average_Rating) {
Average_Rating = average_Rating;
}
public Integer getNumber_Of_Slots() {
return Number_Of_Slots;
}
public void setNumber_Of_Slots(Integer number_Of_Slots) {
Number_Of_Slots = number_Of_Slots;
}
public Integer getTime_Per_Slot() {
return Time_Per_Slot;
}
public void setTime_Per_Slot(Integer time_Per_Slot) {
Time_Per_Slot = time_Per_Slot;
}
public double getPrice_Per_Slot() {
return Price_Per_Slot;
}
public void setPrice_Per_Slot(double price_Per_Slot) {
Price_Per_Slot = price_Per_Slot;
}
public String getMonday_Open() {
return Monday_Open;
}
public void setMonday_Open(String monday_Open) {
Monday_Open = monday_Open;
}
public String getTuesday_Open() {
return Tuesday_Open;
}
public void setTuesday_Open(String tuesday_Open) {
Tuesday_Open = tuesday_Open;
}
public String getWednesday_Open() {
return Wednesday_Open;
}
public void setWednesday_Open(String wednesday_Open) {
Wednesday_Open = wednesday_Open;
}
public String getThursday_Open() {
return Thursday_Open;
}
public void setThursday_Open(String thursday_Open) {
Thursday_Open = thursday_Open;
}
public String getFriday_Open() {
return Friday_Open;
}
public void setFriday_Open(String friday_Open) {
Friday_Open = friday_Open;
}
public String getSaturday_Open() {
return Saturday_Open;
}
public void setSaturday_Open(String saturday_Open) {
Saturday_Open = saturday_Open;
}
public String getSunday_Open() {
return Sunday_Open;
}
public void setSunday_Open(String sunday_Open) {
Sunday_Open = sunday_Open;
}
public String getDates_Closed() {
return Dates_Closed;
}
public void setDates_Closed(String dates_Closed) {
Dates_Closed = dates_Closed;
}
}
#Service
public class ProductServiceImpl implements ProductService{
private final static Logger LOG = Logger.getLogger(ProductServiceImpl.class.getName());
#PersistenceContext
EntityManager em;
#Transactional
public List<Company_Details> search(Search search) {
LOG.info("Entering search method");
CriteriaBuilder builder = em.getCriteriaBuilder();
CriteriaQuery<Company_Details> c = builder.createQuery(Company_Details.class);
Root<Company_Details> companyRoot = c.from(Company_Details.class);
c.select(companyRoot);
c.where(builder.equal(companyRoot.get("County"),search.getLocation()));
return em.createQuery(c).getResultList();
}
}

You need two criteria: criteria on the Company_Details class
And criteria on the Product_Details class
Then
Criteria crit1 = session.createCriteria(Company_Details.class);
crit1.add(restriction)
Criteria crit2 = crit1.createCriteria("products");
crit2.add(restriction)
// Then query crit1
List results = crit1.list();