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FieldsWriter.h
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1 
2 // 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 FIELDSWRITER_H
8 #define FIELDSWRITER_H
9 
10 #include "LuceneObject.h"
11 
12 namespace Lucene {
13 
14 class FieldsWriter : public LuceneObject {
15 public:
16  FieldsWriter(const DirectoryPtr& d, const String& segment, const FieldInfosPtr& fn);
17  FieldsWriter(const IndexOutputPtr& fdx, const IndexOutputPtr& fdt, const FieldInfosPtr& fn);
18  virtual ~FieldsWriter();
19 
21 
22 protected:
26  bool doClose;
27 
28 public:
29  static const uint8_t FIELD_IS_TOKENIZED;
30  static const uint8_t FIELD_IS_BINARY;
31  static const uint8_t FIELD_IS_COMPRESSED;
32 
33  static const int32_t FORMAT; // Original format
34  static const int32_t FORMAT_VERSION_UTF8_LENGTH_IN_BYTES; // Changed strings to UTF8
35  static const int32_t FORMAT_LUCENE_3_0_NO_COMPRESSED_FIELDS; // Lucene 3.0: Removal of compressed fields
36 
37  // NOTE: if you introduce a new format, make it 1 higher than the current one, and always change this
38  // if you switch to a new format!
39  static const int32_t FORMAT_CURRENT;
40 
41 public:
42  void setFieldsStream(const IndexOutputPtr& stream);
43 
46  void flushDocument(int32_t numStoredFields, const RAMOutputStreamPtr& buffer);
47 
48  void skipDocument();
49  void flush();
50  void close();
51  void writeField(const FieldInfoPtr& fi, const FieldablePtr& field);
52 
55  void addRawDocuments(const IndexInputPtr& stream, Collection<int32_t> lengths, int32_t numDocs);
56 
57  void addDocument(const DocumentPtr& doc);
58 };
59 
60 }
61 
62 #endif

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