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 * The result of a delete operation, when the child has not been merged. It contains the 30 * reference to the modified page, and the removed element. 31 * 32 * @param <K> The type for the Key 33 * @param <V> The type for the stored value 34 35 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 36 */ 37 /* No qualifier */class RemoveResult<K, V> extends AbstractDeleteResult<K, V> 38 { 39 /** 40 * The default constructor for RemoveResult. 41 * 42 * @param modifiedPage The modified page 43 * @param removedElement The removed element (can be null if the key wasn't present in the tree) 44 */ 45 /* No qualifier */RemoveResult( Page<K, V> modifiedPage, Tuple<K, V> removedElement ) 46 { 47 super( modifiedPage, removedElement ); 48 } 49 50 51 /** 52 * A constructor for RemoveResult which takes a list of copied pages. 53 * 54 * @param copiedPages the list of copied pages 55 * @param modifiedPage The modified page 56 * @param removedElement The removed element (can be null if the key wasn't present in the tree) 57 */ 58 /* No qualifier */RemoveResult( List<Page<K, V>> copiedPages, Page<K, V> modifiedPage, Tuple<K, V> removedElement ) 59 { 60 super( copiedPages, modifiedPage, removedElement ); 61 } 62 63 64 /** 65 * @see Object#toString() 66 */ 67 public String toString() 68 { 69 StringBuilder sb = new StringBuilder(); 70 71 sb.append( "RemoveResult :" ); 72 sb.append( "\n removed element = " ).append( getRemovedElement() ); 73 sb.append( "\n modifiedPage = " ).append( getModifiedPage() ); 74 75 return sb.toString(); 76 } 77 }