@Entity
@Table(name = "schools")
public class School implements java.io.Serializable
{
private Integer id;
private String phone;//is not being populate
private Set<Student> students = new HashSet<Student(0);
@OneToMany(fetch = FetchType.LAZY, mappedBy = "school")
public Set<Student> getStudents(){return this.students;}
public void setStudents(Set<Student>students){this.students = students;}   
}   

@Entity
@Table(name = "students")
public class Student implements java.io.Serializable
{
private Integer id;
private School school;
private Boolean phone;//this is being populate but is wrong.
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name="school_id")
public School getSchool() {return this.school;}   
}
i need a criteria which returns a School only a field[PhoneNumber] applying filters on both tables....

public Student getSchoolName(String studentId)
{
    ProjectionList p = Projections.projectionList().add(Projections.property("phone"),"phone");//i only need the phone of the school the parent of student.
    Criterion filters = Restrictions.and(Restrictions.isNotNull("phone"));//restrictions on parent....       
    Session session = getHibernateTemplate().getSessionFactory().openSession();       
    Criteria criteria = session.createCriteria(Student.class,"student").add(Restrictions.eq("id",studentId)).add(Restrictions.eq("status",true))       
    .createCriteria("school","school",JoinType.LEFT_OUTER_JOIN,filters).setProjection(p);// i bring the parent[School] apply the filters...
    criteria.setResultTransformer(Transformers.aliasToBean(Student.class));//unfortunately Student have a phone column as well and Student.phone is populate and School is NULL.               
    Student student =(Student)criteria.uniqueResult();
    //i would like a student with school class with School.phone being populate but Student.phone is being populate and School is NULL       
    session.close();
    return student;
}

Projections.projectionList().add(Projections.property("school.phone"),"school.phone");

org.hibernate.PropertyNotFoundException: Could not find setter for school.phone on class com.generic.model.Student

student.getSchool().getPhone()