+++ /dev/null
-package org.apache.lucene.queryParser.core.nodes;
-
-/**
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-import java.util.List;
-
-import org.apache.lucene.queryParser.core.parser.EscapeQuerySyntax;
-
-/**
- * A {@link BooleanQueryNode} represents a list of elements which do not have an
- * explicit boolean operator defined between them. It can be used to express a
- * boolean query that intends to use the default boolean operator.
- */
-public class BooleanQueryNode extends QueryNodeImpl {
-
- private static final long serialVersionUID = -2206623652088638072L;
-
- /**
- * @param clauses
- * - the query nodes to be and'ed
- */
- public BooleanQueryNode(List<QueryNode> clauses) {
- setLeaf(false);
- allocate();
- set(clauses);
- }
-
- @Override
- public String toString() {
- if (getChildren() == null || getChildren().size() == 0)
- return "<boolean operation='default'/>";
- StringBuilder sb = new StringBuilder();
- sb.append("<boolean operation='default'>");
- for (QueryNode child : getChildren()) {
- sb.append("\n");
- sb.append(child.toString());
- }
- sb.append("\n</boolean>");
- return sb.toString();
- }
-
- public CharSequence toQueryString(EscapeQuerySyntax escapeSyntaxParser) {
- if (getChildren() == null || getChildren().size() == 0)
- return "";
-
- StringBuilder sb = new StringBuilder();
- String filler = "";
- for (QueryNode child : getChildren()) {
- sb.append(filler).append(child.toQueryString(escapeSyntaxParser));
- filler = " ";
- }
-
- // in case is root or the parent is a group node avoid parenthesis
- if ((getParent() != null && getParent() instanceof GroupQueryNode)
- || isRoot())
- return sb.toString();
- else
- return "( " + sb.toString() + " )";
- }
-
- @Override
- public QueryNode cloneTree() throws CloneNotSupportedException {
- BooleanQueryNode clone = (BooleanQueryNode) super.cloneTree();
-
- // nothing to do here
-
- return clone;
- }
-
-}