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.memory; 21 22 23 import java.util.List; 24 25 import org.apache.directory.mavibot.btree.Tuple; 26 27 28 /** 29 * An abstract class to gather common elements of the DeleteResult 30 * 31 * @param <K> The type for the Key 32 * @param <V> The type for the stored value 33 * 34 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 35 */ 36 /* No qualifier */abstract class AbstractDeleteResult<K, V> extends AbstractResult<K, V> implements 37 DeleteResult<K, V> 38 { 39 /** The modified page reference */ 40 private Page<K, V> modifiedPage; 41 42 /** The removed element if the key was found in the tree*/ 43 private Tuple<K, V> removedElement; 44 45 46 /** 47 * The default constructor for AbstractDeleteResult. 48 * 49 * @param modifiedPage The modified page 50 * @param removedElement The removed element (can be null if the key wasn't present in the tree) 51 */ 52 /* No qualifier */AbstractDeleteResult( Page<K, V> modifiedPage, Tuple<K, V> removedElement ) 53 { 54 super(); 55 this.modifiedPage = modifiedPage; 56 this.removedElement = removedElement; 57 } 58 59 60 /** 61 * The default constructor for AbstractDeleteResult. 62 * 63 * @param copiedPages the list of copied pages 64 * @param modifiedPage The modified page 65 * @param removedElement The removed element (can be null if the key wasn't present in the tree) 66 */ 67 /* No qualifier */AbstractDeleteResult( List<Page<K, V>> copiedPages, Page<K, V> modifiedPage, 68 Tuple<K, V> removedElement ) 69 { 70 super( copiedPages ); 71 this.modifiedPage = modifiedPage; 72 this.removedElement = removedElement; 73 } 74 75 76 /** 77 * {@inheritDoc} 78 */ 79 public Page<K, V> getModifiedPage() 80 { 81 return modifiedPage; 82 } 83 84 85 /** 86 * {@inheritDoc} 87 */ 88 public Tuple<K, V> getRemovedElement() 89 { 90 return removedElement; 91 } 92 93 94 /** 95 * @param modifiedPage the modifiedPage to set 96 */ 97 /* No qualifier */void setModifiedPage( Page<K, V> modifiedPage ) 98 { 99 this.modifiedPage = modifiedPage; 100 } 101 }