org.springframework.data.jpa.repository
Interface JpaSpecificationExecutor<T>

All Known Implementing Classes:

QueryDslJpaRepository, SimpleJpaRepository

public interface JpaSpecificationExecutor<T>

Interface to allow execution of Specifications based on the JPA criteria API.

Author:

Oliver Gierke

Method Summary

Long	count(Specification<T> spec) Returns the number of instances that the given Specification will return.
List<T>	findAll(Specification<T> spec) Returns all entities matching the given Specification.
org.springframework.data.domain.Page<T>	findAll(Specification<T> spec, org.springframework.data.domain.Pageable pageable) Returns a Page of entities matching the given Specification.
T	findOne(Specification<T> spec) Returns a single entity matching the given Specification.

Method Detail

findOne

T findOne(Specification<T> spec)

Returns a single entity matching the given Specification.

Parameters:

spec -

Returns:

findAll

List<T> findAll(Specification<T> spec)

Returns all entities matching the given Specification.

Parameters:

spec -

Returns:

findAll

org.springframework.data.domain.Page<T> findAll(Specification<T> spec,
                                                org.springframework.data.domain.Pageable pageable)

Returns a Page of entities matching the given Specification.

Parameters:

spec -

pageable -

Returns:

count

Long count(Specification<T> spec)

Returns the number of instances that the given Specification will return.

Parameters:

spec - the Specification to count instances for

Returns:

the number of instances