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package org.apache.lucene.queryParser.core.nodes;
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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import org.apache.lucene.queryParser.core.parser.EscapeQuerySyntax;
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* A {@link MatchAllDocsQueryNode} indicates that a query node tree or subtree
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* will match all documents if executed in the index.
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public class MatchAllDocsQueryNode extends QueryNodeImpl {
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private static final long serialVersionUID = -7050381275423477809L;
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public MatchAllDocsQueryNode() {
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public String toString() {
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return "<matchAllDocs field='*' term='*'/>";
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public CharSequence toQueryString(EscapeQuerySyntax escapeSyntaxParser) {
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public MatchAllDocsQueryNode cloneTree() throws CloneNotSupportedException {
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MatchAllDocsQueryNode clone = (MatchAllDocsQueryNode) super.cloneTree();