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
17 * limitations under the License.
20 import java.util.List;
22 import org.apache.lucene.queryParser.core.parser.EscapeQuerySyntax;
25 * A {@link AnyQueryNode} represents an ANY operator performed on a list of
28 public class AnyQueryNode extends AndQueryNode {
29 private static final long serialVersionUID = 1000791433562954187L;
31 private CharSequence field = null;
32 private int minimumMatchingmElements = 0;
36 * - the query nodes to be or'ed
38 public AnyQueryNode(List<QueryNode> clauses, CharSequence field,
39 int minimumMatchingElements) {
42 this.minimumMatchingmElements = minimumMatchingElements;
44 if (clauses != null) {
46 for (QueryNode clause : clauses) {
48 if (clause instanceof FieldQueryNode) {
50 if (clause instanceof QueryNodeImpl) {
51 ((QueryNodeImpl) clause).toQueryStringIgnoreFields = true;
54 if (clause instanceof FieldableNode) {
55 ((FieldableNode) clause).setField(field);
65 public int getMinimumMatchingElements() {
66 return this.minimumMatchingmElements;
70 * returns null if the field was not specified
74 public CharSequence getField() {
79 * returns - null if the field was not specified
81 * @return the field as a String
83 public String getFieldAsString() {
84 if (this.field == null)
87 return this.field.toString();
94 public void setField(CharSequence field) {
99 public QueryNode cloneTree() throws CloneNotSupportedException {
100 AnyQueryNode clone = (AnyQueryNode) super.cloneTree();
102 clone.field = this.field;
103 clone.minimumMatchingmElements = this.minimumMatchingmElements;
109 public String toString() {
110 if (getChildren() == null || getChildren().size() == 0)
111 return "<any field='" + this.field + "' matchelements="
112 + this.minimumMatchingmElements + "/>";
113 StringBuilder sb = new StringBuilder();
114 sb.append("<any field='" + this.field + "' matchelements="
115 + this.minimumMatchingmElements + ">");
116 for (QueryNode clause : getChildren()) {
118 sb.append(clause.toString());
120 sb.append("\n</any>");
121 return sb.toString();
125 public CharSequence toQueryString(EscapeQuerySyntax escapeSyntaxParser) {
126 String anySTR = "ANY " + this.minimumMatchingmElements;
128 StringBuilder sb = new StringBuilder();
129 if (getChildren() == null || getChildren().size() == 0) {
133 for (QueryNode clause : getChildren()) {
134 sb.append(filler).append(clause.toQueryString(escapeSyntaxParser));
139 if (isDefaultField(this.field)) {
140 return "( " + sb.toString() + " ) " + anySTR;
142 return this.field + ":(( " + sb.toString() + " ) " + anySTR + ")";