/*
    *    Copyright 2009-2023 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
    *
    *       https://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 org.apache.ibatis.submitted.empty_row;
  
  import java.util.Map;
  
  import org.apache.ibatis.annotations.ResultMap;
  import org.apache.ibatis.annotations.Select;
  
  public interface Mapper {
  
    @Select("select null from (values(0))")
    String getString();
  
    @ResultMap("parentRM")
    @Select("select col1, col2 from parent where id = #{id}")
    Parent getBean(Integer id);
  
    @Select("select col1, col2 from parent where id = #{id}")
    Map<String, String> getMap(Integer id);
  
    @ResultMap("associationRM")
    @Select({ "select p.id, c.name child_name from parent p",
        "left join child c on c.parent_id = p.id where p.id = #{id}" })
    Parent getAssociation(Integer id);
  
    @ResultMap("associationWithNotNullColumnRM")
    @Select({ "select p.id, c.id child_id, c.name child_name from parent p",
        "left join child c on c.parent_id = p.id where p.id = #{id}" })
    Parent getAssociationWithNotNullColumn(Integer id);
  
    @ResultMap("nestedAssociationRM")
    @Select("select 1 id, null child_name, null grandchild_name from (values(0))")
    Parent getNestedAssociation();
  
    @ResultMap("collectionRM")
    @Select({ "select p.id, c.name child_name from parent p",
        "left join child c on c.parent_id = p.id where p.id = #{id}" })
    Parent getCollection(Integer id);
  
    @ResultMap("twoCollectionsRM")
    // @formatter:off
    @Select({"select p.id, c.name child_name, e.name pet_name from parent p",
        "left join child c on c.parent_id = p.id",
        "left join pet e on e.parent_id = p.id", "where p.id = #{id}"})
    // @formatter:on
    Parent getTwoCollections(Integer id);
  
    @Select("select col1, col2 from parent where id = #{id}")
    ImmutableParent selectImmutable(Integer id);
  }