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 import java.util.List; 24 25 26 /** 27 * The result of a delete operation, when the child has not been merged. It contains the 28 * reference to the modified page, and the removed element. 29 * 30 * @param <K> The type for the Key 31 * @param <V> The type for the stored value 32 33 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 34 */ 35 /* No qualifier*/class RemoveResult<K, V> extends AbstractDeleteResult<K, V> 36 { 37 /** 38 * The default constructor for RemoveResult. 39 * 40 * @param modifiedPage The modified page 41 * @param removedElement The removed element (can be null if the key wasn't present in the tree) 42 */ 43 public RemoveResult( Page<K, V> modifiedPage, Tuple<K, V> removedElement ) 44 { 45 super( modifiedPage, removedElement ); 46 } 47 48 49 /** 50 * A constructor for RemoveResult which takes a list of copied pages. 51 * 52 * @param copiedPages the list of copied pages 53 * @param modifiedPage The modified page 54 * @param removedElement The removed element (can be null if the key wasn't present in the tree) 55 */ 56 public RemoveResult( List<Page<K, V>> copiedPages, Page<K, V> modifiedPage, Tuple<K, V> removedElement ) 57 { 58 super( copiedPages, modifiedPage, removedElement ); 59 } 60 61 62 /** 63 * @see Object#toString() 64 */ 65 public String toString() 66 { 67 StringBuilder sb = new StringBuilder(); 68 69 sb.append( "RemoveResult :" ); 70 sb.append( "\n removed element = " ).append( getRemovedElement() ); 71 sb.append( "\n modifiedPage = " ).append( getModifiedPage() ); 72 73 return sb.toString(); 74 } 75 }