java.lang.IllegalArgumentException: Not a managed type: class while initiating repository bean - spring-boot

Question

Hi I am trying to load some database values at start time of spring boot application. I have autowired service, and in service i have autowired Dao. Below is the error.
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'validationExpressionService': Unsatisfied dependency expressed through field 'validationExpressionDao'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'IValidationExpressionDao': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Not a managed type: class com.ril.nfg.dao.bean.ValidationExpression
I have added #EnitityScan #EnableJPARepository
FYI, Primary key in the case in String, hope that is ok.
Entity
import java.io.Serializable;
import java.util.Date;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;
/**
* The Class ValidationExpression.
*/
package com.ril.nfg.dao.bean;
#Entity
#Table(name = "VALIDATION_EXPRESSION")
public class ValidationExpression implements Serializable {
private static final long serialVersionUID = 9096950800262493651L;
private String validationId;
private String expression;
private String createdBy;
private Date createdOn;
private String description;
private String responseCode;
#Id
#Column(name = "VALIDATION_ID", nullable = false, length = 100)
public String getValidationId() {
return validationId;
}
public void setValidationId(String validationId) {
this.validationId = validationId;
}
#Column(name = "EXPRESSION", nullable = false, length = 200)
public String getExpression() {
return expression;
}
public void setExpression(String expression) {
this.expression = expression;
}
//remaining getters and setters
}
Repository
package com.ril.nfg.dao.repos;
import com.ril.nfg.dao.bean.ValidationExpression;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;
/**
* The Interface IValidationExpressionDao.
*/
#Repository
public interface IValidationExpressionDao extends JpaRepository<ValidationExpression, String> {
}
Service
import java.util.List;
#Service
public class ValidationExpressionService {
#Autowired
IValidationExpressionDao validationExpressionDao;
public List<ValidationExpression> getAll() {
return validationExpressionDao.findAll();
}
}
Class with #Autwired Service
public class CacheModuleParam implements ApplicationContextAware{
private static List<ValidationExpression> validationExpressionList = null;
#Autowired
ValidationExpressionService validationExpressionService;
#Override
public void setApplicationContext(final ApplicationContext appContext) throws BeansException {
validationExpressionList = validationExpressionService.getAll();
}
}
Application Class
#ComponentScan(basePackages = {"com.ril.nfg"})
#EnableWebMvc
#EnableAutoConfiguration
#SpringBootApplication//(exclude={DataSourceAutoConfiguration.class})
#EnableJpaRepositories(basePackages="com.ril.nfg.dao.repos",entityManagerFactoryRef="oracleEntityManagerFactory")
//#EntityScan(basePackages = "com.ril.nfg.dao.bean")
public class NFGApplication {
public static void main(String[] args) {
SpringApplication.run(NFGApplication.class, args);
}
}
All solutions on internet focuses on #EntityScan. Please help me understand what is wrong with this code. Thanks in advance

Answer 1

Why do you have all this configuration? Simply put our application in the package tree one level above all the other classes and you can go with a class like this:
#SpringBootApplication
public class NFGApplication {
public static void main(String[] args) {
SpringApplication.run(NFGApplication.class, args);
}
}
Packages:
com.ril.nfg <- here you put NFGApplication
And all other classes in subpackages of com.ril.nfg
And then everything will work!