Spring table relationship problems - spring

Question

I have two entities Product and Image, the image has a Product foreign key.
When i try to run the code i get the following error
org.springframework.beans.factory.UnsatisfiedDependencyException:
Error creating bean with name 'mainController': Unsatisfied dependency
expressed through field 'imageRepository'; nested exception is
org.springframework.beans.factory.BeanCreationException: Error
creating bean with name 'imageRepository': Invocation of init method
failed; nested exception is
org.springframework.data.mapping.PropertyReferenceException: No
property product found for type Image! at
org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:588)
~[spring-beans-4.3.11.RELEASE.jar:4.3.11.RELEASE] at
org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
~[spring-beans-4.3.11.RELEASE.jar:4.3.11.RELEASE] at
org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:366)
~[spring-beans-4.3.11.RELEASE.jar:4.3.11.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1264)
~[spring-beans-4.3.11.RELEASE.jar:4.3.11.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
~[spring-beans-4.3.11.RELEASE.jar:4.3.11.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
~[spring-beans-4.3.11.RELEASE.jar:4.3.11.RELEASE] at
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
~[spring-beans-4.3.11.RELEASE.jar:4.3.11.RELEASE] at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
~[spring-beans-4.3.11.RELEASE.jar:4.3.11.RELEASE] at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
~[spring-beans-4.3.11.RELEASE.jar:4.3.11.RELEASE] at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
~[spring-beans-4.3.11.RELEASE.jar:4.3.11.RELEASE] at
org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761)
~[spring-beans-4.3.11.RELEASE.jar:4.3.11.RELEASE] at
org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867)
~[spring-context-4.3.11.RELEASE.jar:4.3.11.RELEASE] at
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543)
~[spring-context-4.3.11.RELEASE.jar:4.3.11.RELEASE] at
org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122)
~[spring-boot-1.5.7.RELEASE.jar:1.5.7.RELEASE] at
org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693)
[spring-boot-1.5.7.RELEASE.jar:1.5.7.RELEASE] at
org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360)
[spring-boot-1.5.7.RELEASE.jar:1.5.7.RELEASE] at
org.springframework.boot.SpringApplication.run(SpringApplication.java:303)
[spring-boot-1.5.7.RELEASE.jar:1.5.7.RELEASE] at
org.springframework.boot.SpringApplication.run(SpringApplication.java:1118)
[spring-boot-1.5.7.RELEASE.jar:1.5.7.RELEASE] at
org.springframework.boot.SpringApplication.run(SpringApplication.java:1107)
[spring-boot-1.5.7.RELEASE.jar:1.5.7.RELEASE] at
model.Application.main(Application.java:10) [classes/:na] Caused by:
org.springframework.beans.factory.BeanCreationException: Error
creating bean with name 'imageRepository': Invocation of init method
failed; nested exception is
org.springframework.data.mapping.PropertyReferenceException: No
property product found for type Image! at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1628)
~[spring-beans-4.3.11.RELEASE.jar:4.3.11.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555)
~[spring-beans-4.3.11.RELEASE.jar:4.3.11.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
~[spring-beans-4.3.11.RELEASE.jar:4.3.11.RELEASE] at
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
~[spring-beans-4.3.11.RELEASE.jar:4.3.11.RELEASE] at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
~[spring-beans-4.3.11.RELEASE.jar:4.3.11.RELEASE] at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
~[spring-beans-4.3.11.RELEASE.jar:4.3.11.RELEASE] at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
~[spring-beans-4.3.11.RELEASE.jar:4.3.11.RELEASE] at
org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:208)
~[spring-beans-4.3.11.RELEASE.jar:4.3.11.RELEASE] at
org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1138)
~[spring-beans-4.3.11.RELEASE.jar:4.3.11.RELEASE] at
org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066)
~[spring-beans-4.3.11.RELEASE.jar:4.3.11.RELEASE] at
org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:585)
~[spring-beans-4.3.11.RELEASE.jar:4.3.11.RELEASE] ... 19 common
frames omitted Caused by:
org.springframework.data.mapping.PropertyReferenceException: No
property product found for type Image! at
org.springframework.data.mapping.PropertyPath.(PropertyPath.java:77)
~[spring-data-commons-1.13.7.RELEASE.jar:na] at
org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:329)
~[spring-data-commons-1.13.7.RELEASE.jar:na] at
org.springframework.data.mapping.PropertyPath.create(PropertyPath.java:309)
~[spring-data-commons-1.13.7.RELEASE.jar:na] at
org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:272)
~[spring-data-commons-1.13.7.RELEASE.jar:na] at
org.springframework.data.mapping.PropertyPath.from(PropertyPath.java:243)
~[spring-data-commons-1.13.7.RELEASE.jar:na] at
org.springframework.data.repository.query.parser.Part.(Part.java:76)
~[spring-data-commons-1.13.7.RELEASE.jar:na] at
org.springframework.data.repository.query.parser.PartTree$OrPart.(PartTree.java:247)
~[spring-data-commons-1.13.7.RELEASE.jar:na] at
org.springframework.data.repository.query.parser.PartTree$Predicate.buildTree(PartTree.java:398)
~[spring-data-commons-1.13.7.RELEASE.jar:na] at
org.springframework.data.repository.query.parser.PartTree$Predicate.(PartTree.java:378)
~[spring-data-commons-1.13.7.RELEASE.jar:na] at
org.springframework.data.repository.query.parser.PartTree.(PartTree.java:89)
~[spring-data-commons-1.13.7.RELEASE.jar:na] at
org.springframework.data.jpa.repository.query.PartTreeJpaQuery.(PartTreeJpaQuery.java:64)
~[spring-data-jpa-1.11.7.RELEASE.jar:na] at
org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$CreateQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:103)
~[spring-data-jpa-1.11.7.RELEASE.jar:na] at
org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$CreateIfNotFoundQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:214)
~[spring-data-jpa-1.11.7.RELEASE.jar:na] at
org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$AbstractQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:77)
~[spring-data-jpa-1.11.7.RELEASE.jar:na] at
org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.(RepositoryFactorySupport.java:436)
~[spring-data-commons-1.13.7.RELEASE.jar:na] at
org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:221)
~[spring-data-commons-1.13.7.RELEASE.jar:na] at
org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.initAndReturn(RepositoryFactoryBeanSupport.java:277)
~[spring-data-commons-1.13.7.RELEASE.jar:na] at
org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:263)
~[spring-data-commons-1.13.7.RELEASE.jar:na] at
org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.afterPropertiesSet(JpaRepositoryFactoryBean.java:101)
~[spring-data-jpa-1.11.7.RELEASE.jar:na] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1687)
~[spring-beans-4.3.11.RELEASE.jar:4.3.11.RELEASE] at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1624)
~[spring-beans-4.3.11.RELEASE.jar:4.3.11.RELEASE] ... 29 common
frames omitted
Product entity
#Entity
#Table(name = "product")
public class Product {
#Id
#GeneratedValue(strategy=GenerationType.AUTO)
private Integer id;
private String name;
private String description;
private Integer parent_product_id;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public Integer getParent_product_id() {
return parent_product_id;
}
#OneToMany
#JoinColumn(name = "product_id")
public void setParent_product_id(Integer parent_product_id) {
this.parent_product_id = parent_product_id;
}
}
Image Entity
#Entity
public class Image {
#Id
#GeneratedValue(strategy=GenerationType.AUTO)
private Integer id;
private String type;
#ManyToOne
private Product product_id;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public Product getParent_product_id() {
return product_id;
}
public void setProduct_id(Product product_id) {
this.product_id = product_id;
}
}
My ImageRepository
package model;
import org.springframework.data.repository.CrudRepository;
import java.util.List;
// This will be AUTO IMPLEMENTED by Spring into a Bean called userRepository
// CRUD refers Create, Read, Update, Delete
public interface ImageRepository extends CrudRepository<Image, Long> {
List<Image> findByProduct_id(String id);
}
Thanks for the help guys!

Answer 1

Your repository should be:
public interface ImageRepository extends CrudRepository<Image, Long> {
List<Image> findByProductId(Integer id);
}
Your Product Entity should be:
#Entity
#Table(name = "product")
public class Product {
#Id
#GeneratedValue(strategy=GenerationType.AUTO)
private Integer id;
private String name;
private String description;
#Transient
private Integer parentId;
#ManyToOne
#JoinColumn(name="parent_id")
private Product parentProduct;
//getters/setters
}
And your Image Entity should be:
#Entity
#Table(name = "image")
public class Image {
#Id
#GeneratedValue(strategy=GenerationType.AUTO)
private Integer id;
private String type;
#ManyToOne
#JoinColumn(name = "product_id")
private Product product;
//getters/setters
}

Answer 2

Please change the name of the product_id to product and change the String type from the repository to Product !
Also try this query :
#Query("select * from Image image where image.product=:product")
List<Image> findByProduct(#Param("product") Product product);