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
23 import java.util.Collection;
24
25 /**
26 * Case when expression.
27 */
28 @RequiredArgsConstructor
29 @Getter
30 public final class CaseWhenExpression implements ExpressionSegment {
31
32 private final int startIndex;
33
34 private final int stopIndex;
35
36 private final ExpressionSegment caseExpr;
37
38 private final Collection<ExpressionSegment> whenExprs;
39
40 private final Collection<ExpressionSegment> thenExprs;
41
42 private final ExpressionSegment elseExpr;
43
44 @Override
45 public String getText() {
46 return null == caseExpr ? "" : caseExpr.getText();
47 }
48 }