I have an entity with @embeded object in spring data jpa,
While querying example matcher I am getting bellow error:
java.lang.IllegalArgumentException: Unexpected path type for address.mylocation.country. Found org.hibernate.query.criteria.internal.path.SingularAttributePath@2d0c22c6 where From.class was expected. at org.springframework.data.jpa.convert.QueryByExamplePredicateBuilder.getPredicates(QueryByExamplePredicateBuilder.java:142) ~[spring-data-jpa-2.0.5.RELEASE.jar:2.0.5.RELEASE]
My Source code is available here : https://github.com/harsh-hardaha/springboot-h2-example
Product.java
package com.harsh.springframework.domain;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import java.math.BigDecimal;
@Entity
public class Product {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long _id;
private String description;
private BigDecimal price;
private String imageUrl;
@ManyToOne
@JoinColumn(name="addressId")
private Address address;
public Long getId() {
return _id;
}
public void setId(Long id) {
this._id = id;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public BigDecimal getPrice() {
return price;
}
public void setPrice(BigDecimal price) {
this.price = price;
}
public String getImageUrl() {
return imageUrl;
}
public void setImageUrl(String imageUrl) {
this.imageUrl = imageUrl;
}
/**
* @return the address
*/
public Address getAddress() {
return address;
}
/**
* @param address the address to set
*/
public void setAddress(Address address) {
this.address = address;
}
}
Address.java
package com.harsh.springframework.domain;
import javax.persistence.Embedded;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
@Entity
public class Address {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
private String building;
private String street;
@Embedded
private Location mylocation;
/**
* @return the id
*/
public Long getId() {
return id;
}
/**
* @param id the id to set
*/
public void setId(Long id) {
this.id = id;
}
/**
* @return the building
*/
public String getBuilding() {
return building;
}
/**
* @param building the building to set
*/
public void setBuilding(String building) {
this.building = building;
}
/**
* @return the street
*/
public String getStreet() {
return street;
}
/**
* @param street the street to set
*/
public void setStreet(String street) {
this.street = street;
}
/**
* @return the mylocation
*/
@Embedded
public Location getMylocation() {
return mylocation;
}
/**
* @param mylocation the mylocation to set
*/
public void setMylocation(Location mylocation) {
this.mylocation = mylocation;
}
}
Location.java
package com.harsh.springframework.domain;
import javax.persistence.Embeddable;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
@Embeddable
public class Location {
private String city;
private String zip;
@ManyToOne
@JoinColumn(name="countryId")
private Country country;
/**
* @return the city
*/
public String getCity() {
return city;
}
/**
* @param city the city to set
*/
public void setCity(String city) {
this.city = city;
}
/**
* @return the zip
*/
public String getZip() {
return zip;
}
/**
* @param zip the zip to set
*/
public void setZip(String zip) {
this.zip = zip;
}
/**
* @return the country
*/
public Country getCountry() {
return country;
}
/**
* @param country the country to set
*/
public void setCountry(Country country) {
this.country = country;
}
}
Country.java
package com.harsh.springframework.domain;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
@Entity
public class Country {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
private String name;
/**
* @return the id
*/
public Long getId() {
return id;
}
/**
* @param id the id to set
*/
public void setId(Long id) {
this.id = id;
}
/**
* @return the name
*/
public String getName() {
return name;
}
/**
* @param name the name to set
*/
public void setName(String name) {
this.name = name;
}
}
ProductServiceImpl
package com.harsh.springframework.services;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Example;
import org.springframework.data.domain.ExampleMatcher;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;
import org.springframework.stereotype.Service;
import com.harsh.springframework.domain.Address;
import com.harsh.springframework.domain.Country;
import com.harsh.springframework.domain.Location;
import com.harsh.springframework.domain.Product;
import com.harsh.springframework.repositories.ProductRepository;
@Service
public class ProductServiceImpl implements ProductService {
@Autowired
private ProductRepository productRepository;
@Override
public Page<Product> searchProductWithError() {
Pageable pageable = new PageRequest(0, 4);
Product product = new Product();
product.setDescription("top");
Address adress = new Address();
Location location = new Location();
Country country = new Country();
location.setCountry(country);
country.setName("france");
adress.setMylocation(location);
product.setAddress(adress);
//product.setDescription("top");
ExampleMatcher exampleMatcher = ExampleMatcher.matching();
exampleMatcher = ExampleMatcher.matching()
.withIgnoreNullValues()
.withIgnoreCase()
.withMatcher("address.mylocation.country.name", match ->
match.contains());
exampleMatcher = exampleMatcher.withIgnoreNullValues()
.withIgnoreCase()
.withMatcher("description", match -> match.contains());
Example<Product> example = Example.of(product, exampleMatcher);
Page<Product> page = productRepository.findAll(example, pageable);
return page;
}
}
ProductRepository.java
package com.harsh.springframework.repositories;
import org.springframework.data.jpa.repository.JpaRepository;
import com.harsh.springframework.domain.Product;
public interface ProductRepository extends JpaRepository<Product, Long> {
}