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.sqlfederation.optimizer.planner.cache;
19
20 import lombok.EqualsAndHashCode;
21 import lombok.Getter;
22 import lombok.RequiredArgsConstructor;
23 import org.apache.shardingsphere.sql.parser.sql.common.statement.SQLStatement;
24 import org.apache.shardingsphere.sqlfederation.optimizer.statement.SQLStatementCompiler;
25
26 import java.util.LinkedHashMap;
27 import java.util.Map;
28
29 /**
30 * Execution plan cache key.
31 */
32 @RequiredArgsConstructor
33 @Getter
34 @EqualsAndHashCode(of = {"sql", "tableMetaDataVersions"})
35 public final class ExecutionPlanCacheKey {
36
37 // TODO replace sql with parameterized sql
38 private final String sql;
39
40 private final SQLStatement sqlStatement;
41
42 private final String databaseType;
43
44 private final SQLStatementCompiler sqlStatementCompiler;
45
46 private final Map<String, Integer> tableMetaDataVersions = new LinkedHashMap<>();
47 }