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.sql.parser.sql.common.segment.dml.expr;
19
20 import lombok.Getter;
21 import lombok.RequiredArgsConstructor;
22 import org.apache.shardingsphere.sql.parser.sql.common.segment.dml.expr.simple.SimpleExpressionSegment;
23
24 import java.util.Optional;
25
26 /**
27 * Collate expression.
28 */
29 @RequiredArgsConstructor
30 @Getter
31 public final class CollateExpression implements ExpressionSegment {
32
33 private final int startIndex;
34
35 private final int stopIndex;
36
37 private final SimpleExpressionSegment collateName;
38
39 private final ExpressionSegment expr;
40
41 @Override
42 public String getText() {
43 return collateName.getText();
44 }
45
46 public Optional<ExpressionSegment> getExpr() {
47 return Optional.ofNullable(expr);
48 }
49 }