JPA cascade ?

czy11421 · **Joined:** Mon Jul 09, 2007 9:32 am **Posts:** 17

I am using JPA + hibernate + Spring, but looks like the Cascade doesn't work.

Please see the coding, what I expect is, "John" is deleted, "Mary" is added. But I try all javax.persistence.CascadeType, it will not give me the result. Then I try to use org.hibernate.annotations.CascadeType, it will always give me syntax error.

Where is the problem ?

Thanks.

Code:

class Company{
    ....
    @OneToMany(cascade = javax.persistence.CascadeType.ALL, fetch = FetchType.EAGER)
    List<Employee> employeeList;
}

// test coding
Company company = new Company();
List<Employee> employeeList = new ArrayList<Employee>();
employeeList.add(new Empployee("John"));
employeeList.add(new Empployee("Peter"));
company.setEmployeeList(employeeList);
dao.getHibernateTemplate().merge(company);

//-------------
company.getEmployeeList().remove(0);
company.getEmployeeList().add(new Employee("Mary"));
dao.getHibernateTemplate().merge(company);
// what I expect is, "John" is deleted, "Mary" is added. 

Cameron McKenzie · **Posted:** Mon Jan 18, 2010 9:34 am

Does the remove delete the entity, or simply remove the association? Try to delete the entity instead.