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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.sharding.distsql.statement;
19  
20  import lombok.Getter;
21  import org.apache.shardingsphere.distsql.statement.rdl.rule.database.type.CreateRuleStatement;
22  import org.apache.shardingsphere.sharding.distsql.segment.table.TableReferenceRuleSegment;
23  
24  import java.util.Collection;
25  import java.util.stream.Collectors;
26  
27  /**
28   * Create sharding table reference rule statement.
29   */
30  @Getter
31  public final class CreateShardingTableReferenceRuleStatement extends CreateRuleStatement {
32      
33      private final Collection<TableReferenceRuleSegment> rules;
34      
35      public CreateShardingTableReferenceRuleStatement(final boolean ifNotExists, final Collection<TableReferenceRuleSegment> rules) {
36          super(ifNotExists);
37          this.rules = rules;
38      }
39      
40      /**
41       * Get table names.
42       *
43       * @return table names
44       */
45      public Collection<String> getTableNames() {
46          return rules.stream().flatMap(each -> each.getTableNames().stream()).collect(Collectors.toList());
47      }
48  }