+++ /dev/null
-package org.apache.lucene.queryParser.standard;
-
-/**
- * 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.Map;
-
-import org.apache.lucene.analysis.Analyzer;
-import org.apache.lucene.queryParser.ParseException;
-import org.apache.lucene.search.BooleanClause;
-import org.apache.lucene.search.BooleanQuery;
-import org.apache.lucene.search.Query;
-
-/**
- * This class behaves as the as the lucene 2.4 MultiFieldQueryParser class, but uses the new
- * query parser interface instead of the old one. <br/>
- * <br/>
- * This class should be used when the new query parser features are needed and
- * also keep at the same time the old query parser interface. <br/>
- *
- * @deprecated this class will be removed soon, it's a temporary class to be
- * used along the transition from the old query parser to the new
- * one
- */
-@Deprecated
-public class MultiFieldQueryParserWrapper extends QueryParserWrapper {
-
- /**
- * Creates a MultiFieldQueryParser. Allows passing of a map with term to
- * Boost, and the boost to apply to each term.
- *
- * <p>
- * It will, when parse(String query) is called, construct a query like this
- * (assuming the query consists of two terms and you specify the two fields
- * <code>title</code> and <code>body</code>):
- * </p>
- *
- * <code>
- * (title:term1 body:term1) (title:term2 body:term2)
- * </code>
- *
- * <p>
- * When setDefaultOperator(AND_OPERATOR) is set, the result will be:
- * </p>
- *
- * <code>
- * +(title:term1 body:term1) +(title:term2 body:term2)
- * </code>
- *
- * <p>
- * When you pass a boost (title=>5 body=>10) you can get
- * </p>
- *
- * <code>
- * +(title:term1^5.0 body:term1^10.0) +(title:term2^5.0 body:term2^10.0)
- * </code>
- *
- * <p>
- * In other words, all the query's terms must appear, but it doesn't matter in
- * what fields they appear.
- * </p>
- */
-public MultiFieldQueryParserWrapper(String[] fields, Analyzer analyzer, Map<String, Float> boosts) {
- this(fields, analyzer);
- StandardQueryParser qpHelper = getQueryParserHelper();
-
- qpHelper.setMultiFields(fields);
- qpHelper.setFieldsBoost(boosts);
-
- }
-
- /**
- * Creates a MultiFieldQueryParser.
- *
- * <p>
- * It will, when parse(String query) is called, construct a query like this
- * (assuming the query consists of two terms and you specify the two fields
- * <code>title</code> and <code>body</code>):
- * </p>
- *
- * <code>
- * (title:term1 body:term1) (title:term2 body:term2)
- * </code>
- *
- * <p>
- * When setDefaultOperator(AND_OPERATOR) is set, the result will be:
- * </p>
- *
- * <code>
- * +(title:term1 body:term1) +(title:term2 body:term2)
- * </code>
- *
- * <p>
- * In other words, all the query's terms must appear, but it doesn't matter in
- * what fields they appear.
- * </p>
- */
- public MultiFieldQueryParserWrapper(String[] fields, Analyzer analyzer) {
- super(null, analyzer);
-
- StandardQueryParser qpHelper = getQueryParserHelper();
- qpHelper.setAnalyzer(analyzer);
-
- qpHelper.setMultiFields(fields);
- }
-
- /**
- * Parses a query which searches on the fields specified.
- * <p>
- * If x fields are specified, this effectively constructs:
- *
- * <pre>
- * <code>
- * (field1:query1) (field2:query2) (field3:query3)...(fieldx:queryx)
- * </code>
- * </pre>
- *
- * @param queries
- * Queries strings to parse
- * @param fields
- * Fields to search on
- * @param analyzer
- * Analyzer to use
- * @throws ParseException
- * if query parsing fails
- * @throws IllegalArgumentException
- * if the length of the queries array differs from the length of the
- * fields array
- */
- public static Query parse(String[] queries, String[] fields, Analyzer analyzer)
- throws ParseException {
- if (queries.length != fields.length)
- throw new IllegalArgumentException("queries.length != fields.length");
- BooleanQuery bQuery = new BooleanQuery();
- for (int i = 0; i < fields.length; i++) {
- QueryParserWrapper qp = new QueryParserWrapper(fields[i], analyzer);
- Query q = qp.parse(queries[i]);
- if (q != null && // q never null, just being defensive
- (!(q instanceof BooleanQuery) || ((BooleanQuery) q).getClauses().length > 0)) {
- bQuery.add(q, BooleanClause.Occur.SHOULD);
- }
- }
- return bQuery;
- }
-
- /**
- * Parses a query, searching on the fields specified. Use this if you need to
- * specify certain fields as required, and others as prohibited.
- * <p>
- *
- * <pre>
- * Usage:
- * <code>
- * String[] fields = {"filename", "contents", "description"};
- * BooleanClause.Occur[] flags = {BooleanClause.Occur.SHOULD,
- * BooleanClause.Occur.MUST,
- * BooleanClause.Occur.MUST_NOT};
- * MultiFieldQueryParser.parse("query", fields, flags, analyzer);
- * </code>
- * </pre>
- *<p>
- * The code above would construct a query:
- *
- * <pre>
- * <code>
- * (filename:query) +(contents:query) -(description:query)
- * </code>
- * </pre>
- *
- * @param query
- * Query string to parse
- * @param fields
- * Fields to search on
- * @param flags
- * Flags describing the fields
- * @param analyzer
- * Analyzer to use
- * @throws ParseException
- * if query parsing fails
- * @throws IllegalArgumentException
- * if the length of the fields array differs from the length of the
- * flags array
- */
- public static Query parse(String query, String[] fields,
- BooleanClause.Occur[] flags, Analyzer analyzer) throws ParseException {
- if (fields.length != flags.length)
- throw new IllegalArgumentException("fields.length != flags.length");
- BooleanQuery bQuery = new BooleanQuery();
- for (int i = 0; i < fields.length; i++) {
- QueryParserWrapper qp = new QueryParserWrapper(fields[i], analyzer);
- Query q = qp.parse(query);
- if (q != null && // q never null, just being defensive
- (!(q instanceof BooleanQuery) || ((BooleanQuery) q).getClauses().length > 0)) {
- bQuery.add(q, flags[i]);
- }
- }
- return bQuery;
- }
-
- /**
- * Parses a query, searching on the fields specified. Use this if you need to
- * specify certain fields as required, and others as prohibited.
- * <p>
- *
- * <pre>
- * Usage:
- * <code>
- * String[] query = {"query1", "query2", "query3"};
- * String[] fields = {"filename", "contents", "description"};
- * BooleanClause.Occur[] flags = {BooleanClause.Occur.SHOULD,
- * BooleanClause.Occur.MUST,
- * BooleanClause.Occur.MUST_NOT};
- * MultiFieldQueryParser.parse(query, fields, flags, analyzer);
- * </code>
- * </pre>
- *<p>
- * The code above would construct a query:
- *
- * <pre>
- * <code>
- * (filename:query1) +(contents:query2) -(description:query3)
- * </code>
- * </pre>
- *
- * @param queries
- * Queries string to parse
- * @param fields
- * Fields to search on
- * @param flags
- * Flags describing the fields
- * @param analyzer
- * Analyzer to use
- * @throws ParseException
- * if query parsing fails
- * @throws IllegalArgumentException
- * if the length of the queries, fields, and flags array differ
- */
- public static Query parse(String[] queries, String[] fields,
- BooleanClause.Occur[] flags, Analyzer analyzer) throws ParseException {
- if (!(queries.length == fields.length && queries.length == flags.length))
- throw new IllegalArgumentException(
- "queries, fields, and flags array have have different length");
- BooleanQuery bQuery = new BooleanQuery();
- for (int i = 0; i < fields.length; i++) {
- QueryParserWrapper qp = new QueryParserWrapper(fields[i], analyzer);
- Query q = qp.parse(queries[i]);
- if (q != null && // q never null, just being defensive
- (!(q instanceof BooleanQuery) || ((BooleanQuery) q).getClauses().length > 0)) {
- bQuery.add(q, flags[i]);
- }
- }
- return bQuery;
- }
-
-}
fnp / pylucene.git / blobdiff