org.nuiton.topia.persistence

Interface TopiaQueryBuilderRunQueryWithUniqueResultStep<E extends TopiaEntity>

All Known Subinterfaces:

TopiaQueryBuilderAddCriteriaOrRunQueryStep<E>, TopiaQueryBuilderRunQueryStep<E>

All Known Implementing Classes:

AbstractTopiaDao.InnerTopiaQueryBuilderAddCriteriaOrRunQueryStep, AbstractTopiaDao.InnerTopiaQueryBuilderRunQueryStep

public interface TopiaQueryBuilderRunQueryWithUniqueResultStep<E extends TopiaEntity>

A subset of TopiaQueryBuilderRunQueryStep for certain API methods that should not allow findAll.

Since:

3.0

Method Summary

Methods

Modifier and Type	Method and Description
boolean	exists()
E	findUnique()
E	findUniqueOrNull()
com.google.common.base.Optional<E>	tryFindUnique()

Method Detail

exists

boolean exists()

Returns:

true if the query returns at least one element

findUnique

E findUnique()
                                 throws TopiaNoResultException,
                                        TopiaNonUniqueResultException

Throws:

TopiaNoResultException

TopiaNonUniqueResultException

findUniqueOrNull

E findUniqueOrNull()
                                       throws TopiaNonUniqueResultException

Throws:

TopiaNonUniqueResultException

tryFindUnique

com.google.common.base.Optional<E> tryFindUnique()
                                                                     throws TopiaNonUniqueResultException

Throws:

TopiaNonUniqueResultException