| /* |
| * 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. |
| */ |
| package org.apache.lucene.queryparser.flexible.core.nodes; |
| |
| import org.apache.lucene.queryparser.flexible.core.parser.EscapeQuerySyntax; |
| |
| import java.util.List; |
| |
| |
| /** |
| * A {@link AnyQueryNode} represents an ANY operator performed on a list of |
| * nodes. |
| */ |
| public class AnyQueryNode extends AndQueryNode { |
| private CharSequence field = null; |
| private int minimumMatchingmElements = 0; |
| |
| /** |
| * @param clauses |
| * - the query nodes to be or'ed |
| */ |
| public AnyQueryNode(List<QueryNode> clauses, CharSequence field, |
| int minimumMatchingElements) { |
| super(clauses); |
| this.field = field; |
| this.minimumMatchingmElements = minimumMatchingElements; |
| |
| if (clauses != null) { |
| |
| for (QueryNode clause : clauses) { |
| |
| if (clause instanceof FieldQueryNode) { |
| |
| if (clause instanceof QueryNodeImpl) { |
| ((QueryNodeImpl) clause).toQueryStringIgnoreFields = true; |
| } |
| |
| if (clause instanceof FieldableNode) { |
| ((FieldableNode) clause).setField(field); |
| } |
| |
| } |
| } |
| |
| } |
| |
| } |
| |
| public int getMinimumMatchingElements() { |
| return this.minimumMatchingmElements; |
| } |
| |
| /** |
| * returns null if the field was not specified |
| * |
| * @return the field |
| */ |
| public CharSequence getField() { |
| return this.field; |
| } |
| |
| /** |
| * returns - null if the field was not specified |
| * |
| * @return the field as a String |
| */ |
| public String getFieldAsString() { |
| if (this.field == null) |
| return null; |
| else |
| return this.field.toString(); |
| } |
| |
| /** |
| * @param field |
| * - the field to set |
| */ |
| public void setField(CharSequence field) { |
| this.field = field; |
| } |
| |
| @Override |
| public QueryNode cloneTree() throws CloneNotSupportedException { |
| AnyQueryNode clone = (AnyQueryNode) super.cloneTree(); |
| |
| clone.field = this.field; |
| clone.minimumMatchingmElements = this.minimumMatchingmElements; |
| |
| return clone; |
| } |
| |
| @Override |
| public String toString() { |
| if (getChildren() == null || getChildren().size() == 0) |
| return "<any field='" + this.field + "' matchelements=" |
| + this.minimumMatchingmElements + "/>"; |
| StringBuilder sb = new StringBuilder(); |
| sb.append("<any field='").append(this.field).append("' matchelements=").append(this.minimumMatchingmElements).append('>'); |
| for (QueryNode clause : getChildren()) { |
| sb.append("\n"); |
| sb.append(clause.toString()); |
| } |
| sb.append("\n</any>"); |
| return sb.toString(); |
| } |
| |
| @Override |
| public CharSequence toQueryString(EscapeQuerySyntax escapeSyntaxParser) { |
| String anySTR = "ANY " + this.minimumMatchingmElements; |
| |
| StringBuilder sb = new StringBuilder(); |
| if (getChildren() == null || getChildren().size() == 0) { |
| // no childs case |
| } else { |
| String filler = ""; |
| for (QueryNode clause : getChildren()) { |
| sb.append(filler).append(clause.toQueryString(escapeSyntaxParser)); |
| filler = " "; |
| } |
| } |
| |
| if (isDefaultField(this.field)) { |
| return "( " + sb.toString() + " ) " + anySTR; |
| } else { |
| return this.field + ":(( " + sb.toString() + " ) " + anySTR + ")"; |
| } |
| } |
| |
| } |