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 package org.apache.accumulo.core.iterators.aggregation;
18
19 import org.apache.accumulo.core.data.Value;
20
21 /**
22 * @deprecated since 1.4, replaced by {@link org.apache.accumulo.core.iterators.user.MaxCombiner} with
23 * {@link org.apache.accumulo.core.iterators.LongCombiner.Type#STRING}
24 */
25 @Deprecated
26 public class StringMax implements Aggregator {
27
28 long max = Long.MIN_VALUE;
29
30 public Value aggregate() {
31 return new Value(Long.toString(max).getBytes());
32 }
33
34 public void collect(Value value) {
35 long l = Long.parseLong(new String(value.get()));
36 if (l > max) {
37 max = l;
38 }
39 }
40
41 public void reset() {
42 max = Long.MIN_VALUE;
43 }
44
45 }