Package in.co.akshitbansal.springwebquery.repository

Interface SelectionsProvider<T>

Type Parameters:

T - entity type backing the repository

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface SelectionsProvider<T>

Callback for defining tuple selections for a WebQueryRepository query.

The provided query may be used to create correlated subqueries or inspect outer-query state. Callers should avoid mutating the outer query in ways that change row cardinality, such as enabling distinct results or adding grouping, because paged execution derives the total count from a separate count query.

Method Summary

Modifier and Type	Method	Description
List<jakarta.persistence.criteria.Selection<?>>	getSelections(jakarta.persistence.criteria.Root<T> root, jakarta.persistence.criteria.CriteriaQuery<?> query, jakarta.persistence.criteria.CriteriaBuilder cb)	Defines the tuple selections to apply to the result query.

Method Details

getSelections

List<jakarta.persistence.criteria.Selection<?>> getSelections(jakarta.persistence.criteria.Root<T> root,
 jakarta.persistence.criteria.CriteriaQuery<?> query,
 jakarta.persistence.criteria.CriteriaBuilder cb)

Defines the tuple selections to apply to the result query.

Parameters:

root - entity root for the result query

query - result query being assembled

cb - criteria builder for creating expressions

Returns:

selections to project into the tuple result