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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *     http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  
18  package org.apache.shardingsphere.sql.parser.sql.common.segment.generic;
19  
20  import org.apache.shardingsphere.sql.parser.sql.common.segment.SQLSegment;
21  import org.apache.shardingsphere.sql.parser.sql.common.value.identifier.IdentifierValue;
22  
23  import java.util.Optional;
24  
25  /**
26   * Alias available.
27   */
28  public interface AliasAvailable extends SQLSegment {
29      
30      /**
31       * Get alias name.
32       *
33       * @return alias name
34       */
35      Optional<String> getAliasName();
36      
37      /**
38       * Get alias.
39       *
40       * @return alias
41       */
42      Optional<IdentifierValue> getAlias();
43      
44      /**
45       * Set alias.
46       *
47       * @param alias alias
48       */
49      void setAlias(AliasSegment alias);
50  }