+++ /dev/null
-package org.apache.lucene.queryParser.surround.query;
-/**
- * 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 org.apache.lucene.search.BooleanClause;
-import org.apache.lucene.search.BooleanQuery;
-import org.apache.lucene.search.Query;
-
-public abstract class SrndQuery implements Cloneable {
- public SrndQuery() {}
-
- private float weight = (float) 1.0;
- private boolean weighted = false;
-
- public void setWeight(float w) {
- weight = w; /* as parsed from the query text */
- weighted = true;
- }
- public boolean isWeighted() {return weighted;}
- public float getWeight() { return weight; }
- public String getWeightString() {return Float.toString(getWeight());}
-
- public String getWeightOperator() {return "^";}
-
- protected void weightToString(StringBuilder r) { /* append the weight part of a query */
- if (isWeighted()) {
- r.append(getWeightOperator());
- r.append(getWeightString());
- }
- }
-
- public Query makeLuceneQueryField(String fieldName, BasicQueryFactory qf){
- Query q = makeLuceneQueryFieldNoBoost(fieldName, qf);
- if (isWeighted()) {
- q.setBoost(getWeight() * q.getBoost()); /* weight may be at any level in a SrndQuery */
- }
- return q;
- }
-
- public abstract Query makeLuceneQueryFieldNoBoost(String fieldName, BasicQueryFactory qf);
-
- @Override
- public abstract String toString();
-
- public boolean isFieldsSubQueryAcceptable() {return true;}
-
- @Override
- public Object clone() {
- try {
- return super.clone();
- } catch (CloneNotSupportedException cns) {
- throw new Error(cns);
- }
- }
-
-/* An empty Lucene query */
- public final static Query theEmptyLcnQuery = new BooleanQuery() { /* no changes allowed */
- @Override
- public void setBoost(float boost) {
- throw new UnsupportedOperationException();
- }
- @Override
- public void add(BooleanClause clause) {
- throw new UnsupportedOperationException();
- }
- @Override
- public void add(Query query, BooleanClause.Occur occur) {
- throw new UnsupportedOperationException();
- }
- };
-}
-