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.context.planner;
19
20 import lombok.RequiredArgsConstructor;
21 import org.apache.calcite.schema.Schema;
22
23 import java.util.Map;
24
25 /**
26 * Optimize meta data.
27 */
28 @RequiredArgsConstructor
29 public final class OptimizerMetaData {
30
31 private final Map<String, Schema> schemas;
32
33 /**
34 * Get schema.
35 *
36 * @param schemaName schema name
37 * @return schema
38 */
39 public Schema getSchema(final String schemaName) {
40 return schemas.get(schemaName);
41 }
42 }