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.distsql.statement.rql.resource;
19
20 import lombok.RequiredArgsConstructor;
21 import org.apache.shardingsphere.sql.parser.sql.common.segment.generic.DatabaseSegment;
22 import org.apache.shardingsphere.sql.parser.sql.common.statement.available.FromDatabaseAvailable;
23
24 import java.util.Optional;
25
26 /**
27 * Show tables statement.
28 */
29 @RequiredArgsConstructor
30 public abstract class ShowTablesStatement extends ResourceQueryStatement implements FromDatabaseAvailable {
31
32 private final String likePattern;
33
34 private final DatabaseSegment database;
35
36 /**
37 * Get like pattern.
38 *
39 * @return like pattern
40 */
41 public Optional<String> getLikePattern() {
42 return Optional.ofNullable(likePattern);
43 }
44
45 /**
46 * Get database.
47 *
48 * @return database
49 */
50 @Override
51 public final Optional<DatabaseSegment> getDatabase() {
52 return Optional.ofNullable(database);
53 }
54 }