getSingleResult() - JPA Query's method
Method javax.persistence.Query
Object getSingleResult()
Execute a SELECT query that returns a single untyped result.
- Returns:
- the result
- Throws:
-
NoResultException- if there is no result -
NonUniqueResultException- if more than one result -
IllegalStateException- if called for a Java Persistence query language UPDATE or DELETE statement -
QueryTimeoutException- if the query execution exceeds the query timeout value set and only the statement is rolled back -
TransactionRequiredException- if a lock mode has been set and there is no transaction -
PessimisticLockException- if pessimistic locking fails and the transaction is rolled back -
LockTimeoutException- if pessimistic locking fails and only the statement is rolled back -
PersistenceException- if the query execution exceeds the query timeout value set and the transaction is rolled back
- Since:
- JPA 1.0
