| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| */ |
| package org.apache.directory.mavibot.btree; |
| |
| |
| /** |
| * The result of an delete operation, when the key to delete is not present in the tree. |
| * |
| * @param <K> The type for the Key |
| * @param <V> The type for the stored value |
| |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| /* No qualifier*/class NotPresentResult<K, V> extends AbstractResult<K, V> implements DeleteResult<K, V> |
| { |
| /** The unique instance for this class */ |
| @SuppressWarnings("rawtypes") |
| public static final NotPresentResult NOT_PRESENT = new NotPresentResult(); |
| |
| |
| /** |
| * A private void constructor, as we won't have any other instance. |
| */ |
| private NotPresentResult() |
| { |
| // Do nothing |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public Page<K, V> getModifiedPage() |
| { |
| return null; |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public Tuple<K, V> getRemovedElement() |
| { |
| return null; |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public K getNewLeftMost() |
| { |
| return null; |
| } |
| } |