/*
    * Licensed to the Apache Software Foundation (ASF) under one or more
    * contributor license agreements.  See the NOTICE file distributed with
    * this work for additional information regarding copyright ownership.
    * The ASF licenses this file to You 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 org.apache.shardingsphere.sql.parser.sql.dialect.statement.mysql.dml;
  
  import lombok.Setter;
  import org.apache.shardingsphere.sql.parser.sql.common.segment.dml.pagination.limit.LimitSegment;
  import org.apache.shardingsphere.sql.parser.sql.common.segment.dml.predicate.LockSegment;
  import org.apache.shardingsphere.sql.parser.sql.common.segment.generic.WindowSegment;
  import org.apache.shardingsphere.sql.parser.sql.common.segment.generic.WithSegment;
  import org.apache.shardingsphere.sql.parser.sql.common.segment.generic.table.SimpleTableSegment;
  import org.apache.shardingsphere.sql.parser.sql.common.statement.dml.SelectStatement;
  import org.apache.shardingsphere.sql.parser.sql.dialect.statement.mysql.MySQLStatement;
  
  import java.util.Optional;
  
  /**
   * MySQL select statement.
   */
  @Setter
  public final class MySQLSelectStatement extends SelectStatement implements MySQLStatement {
      
      private SimpleTableSegment table;
      
      private LimitSegment limit;
      
      private LockSegment lock;
      
      private WindowSegment window;
      
      private WithSegment withSegment;
      
      /**
       * Get order by segment.
       *
       * @return order by segment
       */
      public Optional<LimitSegment> getLimit() {
          return Optional.ofNullable(limit);
      }
      
      /**
       * Get lock segment.
       *
       * @return lock segment
       */
      public Optional<LockSegment> getLock() {
          return Optional.ofNullable(lock);
      }
      
      /**
       * Get window segment.
       *
       * @return window segment
       */
      public Optional<WindowSegment> getWindow() {
          return Optional.ofNullable(window);
      }
      
      /**
       * Get simple table segment.
       *
       * @return simple table segment
       */
      public Optional<SimpleTableSegment> getTable() {
          return Optional.ofNullable(table);
      }
      
      /**
       * Get with segment.
       *
       * @return with segment.
       */
      public Optional<WithSegment> getWithSegment() {
          return Optional.ofNullable(withSegment);
      }
  }