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.Getter;
21 import lombok.RequiredArgsConstructor;
22 import org.apache.shardingsphere.sql.parser.statement.core.segment.dal.FromDatabaseSegment;
23 import org.apache.shardingsphere.sql.parser.statement.core.statement.attribute.SQLStatementAttributes;
24 import org.apache.shardingsphere.sql.parser.statement.core.statement.attribute.type.FromDatabaseSQLStatementAttribute;
25
26 import java.util.Optional;
27
28 /**
29 * Show tables statement.
30 */
31 @RequiredArgsConstructor
32 @Getter
33 public abstract class ShowTablesStatement extends ResourceQueryStatement {
34
35 private final FromDatabaseSegment fromDatabase;
36
37 private final String likePattern;
38
39 /**
40 * Get like pattern.
41 *
42 * @return like pattern
43 */
44 public Optional<String> getLikePattern() {
45 return Optional.ofNullable(likePattern);
46 }
47
48 @Override
49 public SQLStatementAttributes getAttributes() {
50 return new SQLStatementAttributes(new FromDatabaseSQLStatementAttribute(fromDatabase));
51 }
52 }