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  • org.hibernate.PropertyValueException: not-null property references a null or transien

    org.hibernate.PropertyValueException: not-null property references a null or transient value: com.xxx.Child.parent

    I am trying to save the parent and child values using jpa by passing parent and child values in JSON format

    <code>

    //restful controller
    //sending in the json format and placed the jackson jars in classpath
    /*
    {
    "parentname": "1313131",
    "parentcreate_date": "2013-07-11",
    "child": [
    {
    "name": "1.mov",
    "create_date": "2013-07-11"
    },
    {
    "name": "2.mov",
    "create_date": "2013-07-11"
    }
    ]
    }
    */
    @RequestMapping(value = "/saveparent", method = RequestMethod.POST)
    public ResponseEntity<ErrorMessage> saveParent(@RequestBody Parent parent) {
    service.saveParent(parent);
    }


    @Entity
    public class Parent {

    @Id
    @GeneratedValue(strategy=GenerationType.AUTO)
    private Long id;

    private String parentname;
    private String parentcreate_date;

    public List<Child> getChild() {
    return child;
    }
    public void setChild(List<Child> child) {
    this.child = child;
    }

    @OneToMany(cascade = CascadeType.PERSIST,fetch=FetchType.LAZY, mappedBy = "parent")
    public List<Child> child;


    public void addChild(Child children){
    if (this.children == null) {
    this.children = new ArrayList<Child>();
    }
    this.children.add(children);
    children.setParent(this);
    }


    }

    @Entity
    public class Child {

    @Id
    @GeneratedValue(strategy=GenerationType.AUTO)
    private Long id;

    private String name;
    private String create_date;

    @ManyToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "parent_id",nullable = false, updatable = false, insertable = true)
    private Parent parent;

    public Parent getParent() {
    return parent;
    }

    public void setParent(Parent parent) {
    this.parent = parent;
    }





    </code>
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