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PONot-null property references a transient value - transient instance must be saved before current operation
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  1. PONot-null property references a transient value - transient instance must be saved before current operation
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    copied!<p>I have 2 domain models and one Spring REST Controller like below:</p> <pre><code>@Entity public class Customer{ @Id private Long id; @OneToOne(fetch = FetchType.EAGER) @JoinColumn(name="COUNTRY_ID", nullable=false) private Country country; // other stuff with getters/setters } @Entity public class Country{ @Id @Column(name="COUNTRY_ID") private Integer id; // other stuff with getters/setters } </code></pre> <p><strong>Spring REST Controller:</strong></p> <pre><code>@Controller @RequestMapping("/shop/services/customers") public class CustomerRESTController { /** * Create new customer */ @RequestMapping( method=RequestMethod.POST) @ResponseStatus(HttpStatus.CREATED) @ResponseBody public com.salesmanager.web.entity.customer.Customer createCustomer(@Valid @RequestBody Customer customer, Model model, HttpServletRequest request, HttpServletResponse response) throws Exception { customerService.saveOrUpdate(customer); return customer; } // other stuff } </code></pre> <p>I am trying to call above REST service with below JSON as body:</p> <pre><code>{ "firstname": "Tapas", "lastname": "Jena", "city": "Hyderabad", "country": "1" } </code></pre> <p>Where country code 1 is already there in Country table. The problem is when I am calling this service getting below error:</p> <pre><code>org.springframework.dao.InvalidDataAccessApiUsageException: org.hibernate.TransientPropertyValueException: Not-null property references a transient value - transient instance must be saved before current operation: com.test.model.Customer.country -&gt; com.test.model.Country; nested exception is java.lang.IllegalStateException: org.hibernate.TransientPropertyValueException: Not-null property references a transient value - transient instance must be saved before current operation: com.test.model.Customer.country -&gt; com.test.model.Country </code></pre> <p>Any help will be appreciated!</p>
 

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