1 /**
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18 package org.apache.hadoop.hbase.hbtop.mode;
19
20 import edu.umd.cs.findbugs.annotations.Nullable;
21 import java.util.List;
22
23 import org.apache.hadoop.hbase.ClusterStatus;
24 import org.apache.hadoop.hbase.classification.InterfaceAudience;
25 import org.apache.hadoop.hbase.hbtop.Record;
26 import org.apache.hadoop.hbase.hbtop.field.Field;
27 import org.apache.hadoop.hbase.hbtop.field.FieldInfo;
28
29 /**
30 * An interface for strategy logic for {@link Mode}.
31 */
32 @InterfaceAudience.Private
33 interface ModeStrategy {
34 List<FieldInfo> getFieldInfos();
35 Field getDefaultSortField();
36 List<Record> getRecords(ClusterStatus clusterStatus);
37 @Nullable DrillDownInfo drillDown(Record selectedRecord);
38 }