com.blazebit.persistence.deltaspike.data

Interface Specification<T>

Type Parameters:

T - The entity type

public interface Specification<T>

A type to represent a specific view on data, heavily inspired by Spring Data's Specification.

Since:

1.2.0

Author:

Christian Beikov

Method Summary

Modifier and Type	Method and Description
javax.persistence.criteria.Predicate	toPredicate(javax.persistence.criteria.Root<T> root, javax.persistence.criteria.CriteriaQuery<?> query, javax.persistence.criteria.CriteriaBuilder cb) Creates a WHERE clause for a query of the referenced entity in form of a Predicate for the given Root and CriteriaQuery.

Method Detail

toPredicate

javax.persistence.criteria.Predicate toPredicate(javax.persistence.criteria.Root<T> root,
                                                 javax.persistence.criteria.CriteriaQuery<?> query,
                                                 javax.persistence.criteria.CriteriaBuilder cb)

Creates a WHERE clause for a query of the referenced entity in form of a Predicate for the given Root and CriteriaQuery.

Parameters:

root - The query root

query - The criteria query

Returns:

a Predicate, may be null