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FieldDocSortedHitQueue.h
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1 // Copyright (c) 2009-2014 Alan Wright. All rights reserved.
3 // Distributable under the terms of either the Apache License (Version 2.0)
4 // or the GNU Lesser General Public License.
6 
7 #ifndef FIELDDOCSORTEDHITQUEUE_H
8 #define FIELDDOCSORTEDHITQUEUE_H
9 
10 #include "PriorityQueue.h"
11 
12 namespace Lucene {
13 
16 class FieldDocSortedHitQueue : public PriorityQueue<FieldDocPtr> {
17 public:
19  virtual ~FieldDocSortedHitQueue();
20 
22 
23 public:
25 
26  // used in the case where the fields are sorted by locale based strings
28 
29 public:
35 
38 
39 protected:
45 
47  virtual bool lessThan(const FieldDocPtr& first, const FieldDocPtr& second);
48 };
49 
50 }
51 
52 #endif
virtual bool lessThan(const FieldDocPtr &first, const FieldDocPtr &second)
Returns whether first is less relevant than second.
FieldDocSortedHitQueue(int32_t size)
void setFields(Collection< SortFieldPtr > fields)
Allows redefinition of sort fields if they are null. This is to handle the case using ParallelMultiSe...
A PriorityQueue maintains a partial ordering of its elements such that the least element can always b...
Definition: PriorityQueue.h:20
Collection< SortFieldPtr > getFields()
Returns the fields being used to sort.
Collects sorted results from Searchable&#39;s and collates them. The elements put into this queue must be...
Definition: FieldDocSortedHitQueue.h:16
int32_t size() const
Returns the number of elements currently stored in the PriorityQueue.
Definition: PriorityQueue.h:133
Collection< CollatorPtr > collators
Definition: FieldDocSortedHitQueue.h:27
#define LUCENE_CLASS(Name)
Definition: LuceneObject.h:24
Definition: AbstractAllTermDocs.h:12
Collection< SortFieldPtr > fields
Definition: FieldDocSortedHitQueue.h:21
Collection< CollatorPtr > hasCollators(Collection< SortFieldPtr > fields)
Returns an array of collators, possibly null. The collators correspond to any SortFields which were g...
boost::shared_ptr< FieldDoc > FieldDocPtr
Definition: LuceneTypes.h:350

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