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/**
* Copyright 2014-2020 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.kaczmarzyk.spring.data.jpa.domain;
import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.Expression;
import javax.persistence.criteria.Predicate;
import net.kaczmarzyk.spring.data.jpa.utils.Converter;
import net.kaczmarzyk.spring.data.jpa.utils.QueryContext;
/**
* Filters with less than or equal where-clause (e.g. {@code where firstName <= "Homer"}).
*
* Supports multiple field types: strings, numbers, booleans, enums, dates.
*
* Field types must be Comparable (e.g, implement the {@code Comparable} interface); this is
* a JPA constraint.
*
* NOTE: comparisons are dependent on the underlying database.
* Comparisons of floats and doubles (especially floats) may be incorrect due to precision loss.
* Comparisons of booleans may be dependent on the underlying database representation.
* Comparisons of enums will be of their ordinal or string representations, depending on what you specified to JPA,
* e.g., {@code @Enumerated(EnumType.STRING)}, {@code @Enumerated(EnumType.ORDINAL)} or the default ({@code @Enumerated(EnumType.ORDINAL)})
*
* @author TP Diffenbach
*/
public class LessThanOrEqual extends ComparableSpecification {
private static final long serialVersionUID = 1L;
public LessThanOrEqual(QueryContext queryContext, String path, String[] httpParamValues, Converter converter) {
super(queryContext, path, httpParamValues, converter);
}
@Override
protected > Predicate makePredicate(CriteriaBuilder cb, Expression x, Y y) {
return cb.lessThanOrEqualTo(x, y);
}
}