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NumberTools.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 NUMBERTOOLS_H
8 #define NUMBERTOOLS_H
9 
10 #include "LuceneObject.h"
11 
12 namespace Lucene {
13 
26 class LPPAPI NumberTools : public LuceneObject {
27 public:
28  virtual ~NumberTools();
29 
31 
32 protected:
33  static const int32_t RADIX;
34 
35  static const wchar_t NEGATIVE_PREFIX;
36 
37  // NB: NEGATIVE_PREFIX must be < POSITIVE_PREFIX
38  static const wchar_t POSITIVE_PREFIX;
39 
40 public:
42  static const String& MIN_STRING_VALUE();
43 
45  static const String& MAX_STRING_VALUE();
46 
48  static int32_t STR_SIZE();
49 
51  static String longToString(int64_t l);
52 
54  static int64_t stringToLong(const String& str);
55 };
56 
57 }
58 
59 #endif
#define LUCENE_CLASS(Name)
Definition: LuceneObject.h:24
Base class for all Lucene classes.
Definition: LuceneObject.h:31
Provides support for converting longs to Strings, and back again. The strings are structured so that ...
Definition: NumberTools.h:26
static const wchar_t NEGATIVE_PREFIX
Definition: NumberTools.h:35
static String longToString(int64_t l)
Converts a long to a String suitable for indexing.
static int64_t stringToLong(const String &str)
Converts a String that was returned by longToString back to a long.
static int32_t STR_SIZE()
The length of (all) strings returned by longToString.
static const String & MAX_STRING_VALUE()
Equivalent to longToString(LLONG_MAX)
virtual ~NumberTools()
static const wchar_t POSITIVE_PREFIX
Definition: NumberTools.h:38
static const String & MIN_STRING_VALUE()
Equivalent to longToString(LLONG_MIN)
static const int32_t RADIX
Definition: NumberTools.h:30
Definition: AbstractAllTermDocs.h:12

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