Package org.springframework.data.jpa.repository.support

Class QuerydslJpaPredicateExecutor<T>

java.lang.Object

org.springframework.data.jpa.repository.support.QuerydslJpaPredicateExecutor<T>

All Implemented Interfaces:

QuerydslPredicateExecutor<T>

public class QuerydslJpaPredicateExecutor<T>
extends Object
implements QuerydslPredicateExecutor<T>

Querydsl specific fragment for extending SimpleJpaRepository with an implementation of QuerydslPredicateExecutor.

Author:

Oliver Gierke, Thomas Darimont, Mark Paluch, Jocelyn Ntakpe, Christoph Strobl, Jens Schauder, Greg Turnquist, Yanming Zhou

Constructor Summary

Constructors

Constructor	Description
QuerydslJpaPredicateExecutor(JpaEntityInformation<T,?> entityInformation, jakarta.persistence.EntityManager entityManager, EntityPathResolver resolver, CrudMethodMetadata metadata)	Creates a new QuerydslJpaPredicateExecutor from the given domain class and EntityManager and uses the given EntityPathResolver to translate the domain class into an EntityPath.

Method Summary

Modifier and Type	Method	Description
long	count(com.querydsl.core.types.Predicate predicate)
protected com.querydsl.jpa.JPQLQuery<?>	createCountQuery(com.querydsl.core.types.Predicate... predicate)	Creates a new JPQLQuery count query for the given Predicate.
protected com.querydsl.jpa.impl.AbstractJPAQuery<?,?>	createQuery(com.querydsl.core.types.Predicate... predicate)	Creates a new JPQLQuery for the given Predicate.
boolean	exists(com.querydsl.core.types.Predicate predicate)
List<T>	findAll(com.querydsl.core.types.OrderSpecifier<?>... orders)
List<T>	findAll(com.querydsl.core.types.Predicate predicate)
List<T>	findAll(com.querydsl.core.types.Predicate predicate, com.querydsl.core.types.OrderSpecifier<?>... orders)
Page<T>	findAll(com.querydsl.core.types.Predicate predicate, Pageable pageable)
List<T>	findAll(com.querydsl.core.types.Predicate predicate, Sort sort)
<S extends T, R> R	findBy(com.querydsl.core.types.Predicate predicate, Function<FluentQuery.FetchableFluentQuery<S>,R> queryFunction)
Optional<T>	findOne(com.querydsl.core.types.Predicate predicate)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

QuerydslJpaPredicateExecutor

public QuerydslJpaPredicateExecutor(JpaEntityInformation<T,?> entityInformation,
 jakarta.persistence.EntityManager entityManager,
 EntityPathResolver resolver,
 @Nullable
 CrudMethodMetadata metadata)

Creates a new QuerydslJpaPredicateExecutor from the given domain class and EntityManager and uses the given EntityPathResolver to translate the domain class into an EntityPath.

Parameters:

entityInformation - must not be null.

entityManager - must not be null.

resolver - must not be null.

metadata - maybe null.

Method Details

findOne

public Optional<T> findOne(com.querydsl.core.types.Predicate predicate)

Specified by:

findOne in interface QuerydslPredicateExecutor<T>

findAll

public List<T> findAll(com.querydsl.core.types.Predicate predicate)

Specified by:

findAll in interface QuerydslPredicateExecutor<T>

findAll

public List<T> findAll(com.querydsl.core.types.Predicate predicate,
 com.querydsl.core.types.OrderSpecifier<?>... orders)

Specified by:

findAll in interface QuerydslPredicateExecutor<T>

findAll

public List<T> findAll(com.querydsl.core.types.Predicate predicate,
 Sort sort)

Specified by:

findAll in interface QuerydslPredicateExecutor<T>

findAll

public List<T> findAll(com.querydsl.core.types.OrderSpecifier<?>... orders)

Specified by:

findAll in interface QuerydslPredicateExecutor<T>

findAll

public Page<T> findAll(com.querydsl.core.types.Predicate predicate,
 Pageable pageable)

Specified by:

findAll in interface QuerydslPredicateExecutor<T>

findBy

public <S extends T,
R> R findBy(com.querydsl.core.types.Predicate predicate,
 Function<FluentQuery.FetchableFluentQuery<S>,R> queryFunction)

Specified by:

findBy in interface QuerydslPredicateExecutor<T>

count

public long count(com.querydsl.core.types.Predicate predicate)

Specified by:

count in interface QuerydslPredicateExecutor<T>

exists

public boolean exists(com.querydsl.core.types.Predicate predicate)

Specified by:

exists in interface QuerydslPredicateExecutor<T>

createQuery

protected com.querydsl.jpa.impl.AbstractJPAQuery<?,?> createQuery(com.querydsl.core.types.Predicate... predicate)

Creates a new JPQLQuery for the given Predicate.

Parameters:

predicate -

Returns:

the Querydsl JPQLQuery.

createCountQuery

protected com.querydsl.jpa.JPQLQuery<?> createCountQuery(@Nullable
 com.querydsl.core.types.Predicate... predicate)

Creates a new JPQLQuery count query for the given Predicate.

Parameters:

predicate - , can be null.

Returns:

the Querydsl count JPQLQuery.