1 package org.apache.lucene.queryParser.surround.query;
3 * Licensed to the Apache Software Foundation (ASF) under one or more
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6 * The ASF licenses this file to You under the Apache License, Version 2.0
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19 /* Create basic queries to be used during rewrite.
20 * The basic queries are TermQuery and SpanTermQuery.
21 * An exception can be thrown when too many of these are used.
22 * SpanTermQuery and TermQuery use IndexReader.termEnum(Term), which causes the buffer usage.
24 * Use this class to limit the buffer usage for reading terms from an index.
25 * Default is 1024, the same as the max. number of subqueries for a BooleanQuery.
28 import org.apache.lucene.index.Term;
29 import org.apache.lucene.search.TermQuery;
30 import org.apache.lucene.search.spans.SpanTermQuery;
32 public class BasicQueryFactory {
33 public BasicQueryFactory(int maxBasicQueries) {
34 this.maxBasicQueries = maxBasicQueries;
38 public BasicQueryFactory() {
42 private int maxBasicQueries;
43 private int queriesMade;
45 public int getNrQueriesMade() {return queriesMade;}
46 public int getMaxBasicQueries() {return maxBasicQueries;}
48 private synchronized void checkMax() throws TooManyBasicQueries {
49 if (queriesMade >= maxBasicQueries)
50 throw new TooManyBasicQueries(getMaxBasicQueries());
54 public TermQuery newTermQuery(Term term) throws TooManyBasicQueries {
56 return new TermQuery(term);
59 public SpanTermQuery newSpanTermQuery(Term term) throws TooManyBasicQueries {
61 return new SpanTermQuery(term);