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1   package net.sumaris.core.dao.technical.jpa;
2   
3   /*-
4    * #%L
5    * SUMARiS:: Core shared
6    * %%
7    * Copyright (C) 2018 - 2019 SUMARiS Consortium
8    * %%
9    * This program is free software: you can redistribute it and/or modify
10   * it under the terms of the GNU General Public License as
11   * published by the Free Software Foundation, either version 3 of the
12   * License, or (at your option) any later version.
13   * 
14   * This program is distributed in the hope that it will be useful,
15   * but WITHOUT ANY WARRANTY; without even the implied warranty of
16   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17   * GNU General Public License for more details.
18   * 
19   * You should have received a copy of the GNU General Public
20   * License along with this program.  If not, see
21   * <http://www.gnu.org/licenses/gpl-3.0.html>.
22   * #L%
23   */
24  
25  import com.google.common.collect.Maps;
26  import org.springframework.data.jpa.domain.Specification;
27  
28  import javax.persistence.criteria.ParameterExpression;
29  import java.util.Map;
30  
31  public abstract class SpecificationWithParameters<T> implements Specification<T> {
32          
33          private Map<String, ParameterExpression<?>> parameters = Maps.newHashMap();
34  
35  
36          public <R> ParameterExpression<R> get(String name) {
37              return (ParameterExpression<R>) parameters.get(name);
38          }
39  
40          protected <R> ParameterExpression<R> add(ParameterExpression<R> param) {
41                  parameters.put(param.getName(), param);
42                  return param;
43          }
44  
45  
46  }