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public class QueryParamsimplements Specification { @Override public Predicate toPredicate(Root root, CriteriaQuery query, CriteriaBuilder criteriaBuilder) { return null; }}
public interface Specificationextends Serializable { long serialVersionUID = 1L; static Specification not(Specification spec) { return Specifications.negated(spec); } static Specification where(Specification spec) { return Specifications.where(spec); } default Specification and(Specification other) { return Specifications.composed(this, other, AND); } default Specification or(Specification other) { return Specifications.composed(this, other, OR); } @Nullable Predicate toPredicate(Root root, CriteriaQuery query, CriteriaBuilder criteriaBuilder);}
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