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.data.pipeline.core.ingest.record;
19
20 /**
21 * Column.
22 */
23 public interface Column {
24
25 /**
26 * Get name.
27 *
28 * @return name
29 */
30 String getName();
31
32 /**
33 * Get old value.
34 *
35 * @return old value
36 */
37 Object getOldValue();
38
39 /**
40 * Get value.
41 *
42 * @return value
43 */
44 Object getValue();
45
46 /**
47 * Judge whether the column is updated.
48 *
49 * @return true if the column is updated, otherwise false
50 */
51 boolean isUpdated();
52
53 /**
54 * Judge whether the column is unique key.
55 *
56 * @return true if the column is unique key, otherwise false
57 */
58 boolean isUniqueKey();
59 }