现在使用spring-data-jpa为什么运行下面的代码courseDetai没有被删除呢?
[code="java"]@Transactional(readOnly = false)
public void deleteCourseDetail(Long id, Long courseId) {
Course course = courseDao.findOne(courseId);
CourseDetail courseDetail = courseDetailDao.findOne(id);
System.out.println(course.getCourseDetails().size());
course.getCourseDetails().remove(courseDetail);
System.out.println("after: " + course.getCourseDetails().size());
courseDao.save(course);
}
@OneToMany(mappedBy = "course", fetch = FetchType.LAZY, cascade = {CascadeType.ALL})
public List getCourseDetails() {
return courseDetails;
}[/code]