com.querydsl.jpa

Interface JPQLQueryFactory

All Superinterfaces:

QueryFactory<JPQLQuery<?>>

All Known Implementing Classes:

HibernateQueryFactory, JPAQueryFactory

public interface JPQLQueryFactory
extends QueryFactory<JPQLQuery<?>>

Common interface for JPA related QueryFactory implementations

Author:

tiwe

Method Summary

Methods

Modifier and Type	Method and Description
DeleteClause<?>	delete(EntityPath<?> path) Create a new DELETE clause
JPQLQuery<?>	from(EntityPath<?> from) Create a new Query with the given source
JPQLQuery<Tuple>	select(Expression<?>... exprs) Create a new JPQLQuery instance with the given projection
<T> JPQLQuery<T>	select(Expression<T> expr) Create a new JPQLQuery instance with the given projection
JPQLQuery<Tuple>	selectDistinct(Expression<?>... exprs) Create a new JPQLQuery instance with the given projection
<T> JPQLQuery<T>	selectDistinct(Expression<T> expr) Create a new JPQLQuery instance with the given projection
<T> JPQLQuery<T>	selectFrom(EntityPath<T> from) Create a new JPQLQuery instance with the given source and projection
JPQLQuery<Integer>	selectOne() Create a new JPQLQuery instance with the projection one
JPQLQuery<Integer>	selectZero() Create a new JPQLQuery instance with the projection zero
UpdateClause<?>	update(EntityPath<?> path) Create a new UPDATE clause

Methods inherited from interface com.querydsl.core.QueryFactory

query

Method Detail

delete

DeleteClause<?> delete(EntityPath<?> path)

Create a new DELETE clause

Parameters:

path - entity to delete from

Returns:

delete clause

select

<T> JPQLQuery<T> select(Expression<T> expr)

Create a new JPQLQuery instance with the given projection

Type Parameters:

T -

Parameters:

expr - projection

Returns:

select(expr)

select

JPQLQuery<Tuple> select(Expression<?>... exprs)

Create a new JPQLQuery instance with the given projection

Parameters:

exprs - projection

Returns:

select(exprs)

selectDistinct

<T> JPQLQuery<T> selectDistinct(Expression<T> expr)

Create a new JPQLQuery instance with the given projection

Type Parameters:

T -

Parameters:

expr - projection

Returns:

select(distinct expr)

selectDistinct

JPQLQuery<Tuple> selectDistinct(Expression<?>... exprs)

Create a new JPQLQuery instance with the given projection

Parameters:

exprs - projection

Returns:

select(distinct exprs)

selectOne

JPQLQuery<Integer> selectOne()

Create a new JPQLQuery instance with the projection one

Returns:

select(1)

selectZero

JPQLQuery<Integer> selectZero()

Create a new JPQLQuery instance with the projection zero

Returns:

select(0)

selectFrom

<T> JPQLQuery<T> selectFrom(EntityPath<T> from)

Create a new JPQLQuery instance with the given source and projection

Type Parameters:

T -

Parameters:

from - projection and source

Returns:

select(from).from(from)

from

JPQLQuery<?> from(EntityPath<?> from)

Create a new Query with the given source

Parameters:

from - from

Returns:

from(from)

update

UpdateClause<?> update(EntityPath<?> path)

Create a new UPDATE clause

Parameters:

path - entity to update

Returns:

update clause