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.filter;
19
20 import java.io.IOException;
21
22 import org.apache.hadoop.hbase.Cell;
23 import org.apache.hadoop.hbase.exceptions.DeserializationException;
24
25 public class FilterAllFilter extends FilterBase {
26
27 public FilterAllFilter() {
28 }
29
30 @Override
31 public ReturnCode filterKeyValue(Cell v) throws IOException {
32 return ReturnCode.SKIP;
33 }
34
35 // Override here explicitly as the method in super class FilterBase might do a KeyValue recreate.
36 // See HBASE-12068
37 @Override
38 public Cell transformCell(Cell v) {
39 return v;
40 }
41
42 @Override
43 public boolean hasFilterRow() {
44 return true;
45 }
46
47 @Override
48 public boolean filterRow() throws IOException {
49 return true;
50 }
51
52 public static FilterAllFilter parseFrom(final byte[] pbBytes) throws DeserializationException {
53 // No options to parse, so why bother
54 return new FilterAllFilter();
55 }
56
57 @Override
58 boolean areSerializedFieldsEqual(Filter o) {
59 if (o == this)
60 return true;
61 if (!(o instanceof FilterAllFilter))
62 return false;
63
64 return true;
65 }
66 }