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I want to write a boolean return type method using JPA criteria.

Like

Java
public boolean isEmployeeType(int id) {

// to do

return session.createQuery(criteriaQuery).getSingleResult();
}


I don't know how to accomplish this.

In following code snippet instead of return Employees I want to return boolean so when I'll call the method I don't need to check null but boolean.

like
Java
if(bLManager.isEmployeeType(12).false {
// to do
}


What I have tried:

 public Employees isEmployeeType(int id) {
        Employees employees;
        try (Session session = sf.openSession()) {
            CriteriaBuilder criteriaBuilder = sf.getCriteriaBuilder();
            CriteriaQuery criteriaQuery = criteriaBuilder.createQuery();

            Root root = criteriaQuery.from(Employees.class);

         criteriaQuery.select(criteriaBuilder.equal(root.get("id"),id))
 .where(criteriaBuilder.equal(root.get("employeetype"), "Store Clerk"));
return employees = Employees)session.createQuery(criteriaQuery).getSingleResult();
        }
    }
Posted
Updated 14-Jun-21 9:26am
v4
Comments
Mr.Corona 13-Jul-21 9:44am
   
Can you Explain your question

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