Interface Path<X,U>

Type Parameters:

X - The root entity type

U - The leaf attribute type

@Incubating
public interface Path<X,U>

Allows construction of a Restriction on a compound path.

A compound path is a sequence of attribute references rooted at the root entity type of the query.

SelectionSpecification.create(Book.class)
        .restrict(from(Book.class).to(Book_.publisher).to(Publisher_.name)
                        .equalTo("Manning"))
        .fetch(from(Book.class).to(Book_.publisher))
        .createQuery(session)
        .getResultList()

A compound path-based restriction has the same semantics as the equivalent implicit join in HQL.

Since:

7.0

See Also:

• Restriction

Method Summary

Modifier and Type	Method	Description
default Restriction<X>	equalTo(U value)
FetchParent<?, ? extends U>	fetch(Root<? extends X> root)
static <X> Path<X,X>	from(Class<X> type)
Class<U>	getType()
default Restriction<X>	in(List<U> values)
default Restriction<X>	notEqualTo(U value)
default Restriction<X>	notIn(List<U> values)
default Restriction<X>	notNull()
Path<U>	path(Root<? extends X> root)
default Restriction<X>	restrict(Range<? super U> range)
default <V> Path<X,V>	to(SingularAttribute<? super U, V> attribute)
default <V> Path<X,V>	to(String attributeName, Class<V> attributeType)

Method Details

path

Path<U> path(Root<? extends X> root)

getType

Class<U> getType()

to

default <V> Path<X,V> to(SingularAttribute<? super U, V> attribute)

to

default <V> Path<X,V> to(String attributeName,
 Class<V> attributeType)

from

static <X> Path<X,X> from(Class<X> type)

restrict

default Restriction<X> restrict(Range<? super U> range)

equalTo

default Restriction<X> equalTo(U value)

notEqualTo

default Restriction<X> notEqualTo(U value)

in

default Restriction<X> in(List<U> values)

notIn

default Restriction<X> notIn(List<U> values)

notNull

default Restriction<X> notNull()

fetch

FetchParent<?, ? extends U> fetch(Root<? extends X> root)