1 package org.apache.lucene.queryParser.core.nodes;
4 * Licensed to the Apache Software Foundation (ASF) under one or more
5 * contributor license agreements. See the NOTICE file distributed with
6 * this work for additional information regarding copyright ownership.
7 * The ASF licenses this file to You under the Apache License, Version 2.0
8 * (the "License"); you may not use this file except in compliance with
9 * the License. You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
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20 import org.apache.lucene.queryParser.core.parser.EscapeQuerySyntax;
21 import org.apache.lucene.queryParser.core.processors.RemoveDeletedQueryNodesProcessor;
24 * A {@link DeletedQueryNode} represents a node that was deleted from the query
25 * node tree. It can be removed from the tree using the
26 * {@link RemoveDeletedQueryNodesProcessor} processor.
28 public class DeletedQueryNode extends QueryNodeImpl {
30 private static final long serialVersionUID = -9151675506000425293L;
32 public DeletedQueryNode() {
36 public CharSequence toQueryString(EscapeQuerySyntax escaper) {
37 return "[DELETEDCHILD]";
41 public String toString() {
46 public QueryNode cloneTree() throws CloneNotSupportedException {
47 DeletedQueryNode clone = (DeletedQueryNode) super.cloneTree();