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,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 *
19 */
20 package org.apache.directory.mavibot.btree;
21
22 /**
23 * The result of an insert operation, returned when the given <key,value> tuple
24 * already exists in the btree that doesn't support duplicates, or while inserting
25 * a <key, null> in a sub-btree that is used to hold the values of a key.
26 *
27 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
28 */
29 /* No qualifier*/ class ExistsResult<K, V> extends AbstractResult<K, V> implements InsertResult<K, V>
30 {
31 public static final ExistsResult EXISTS = new ExistsResult();
32 }