/*
    *    Copyright 2016-2024 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.mybatis.dynamic.sql.render;
  
  import java.util.Optional;
  
  import org.mybatis.dynamic.sql.SqlTable;
  
  public interface TableAliasCalculator {
  
      Optional<String> aliasForColumn(SqlTable table);
  
      Optional<String> aliasForTable(SqlTable table);
  
      static TableAliasCalculator empty() {
          return new TableAliasCalculator() {
              @Override
              public Optional<String> aliasForColumn(SqlTable table) {
                  return table.tableAlias();
              }
  
              @Override
              public Optional<String> aliasForTable(SqlTable table) {
                  return table.tableAlias();
              }
          };
      }
  }