iotjava/iotruntime/cpp/setrelation/IoTRelation.hpp

   1 #ifndef _IOTRELATION_HPP__
   2 #define _IOTRELATION_HPP__
   3 #include <iostream>
   4 #include <string>
   5 #include <unordered_map>
   6
   7 using namespace std;
   8
   9 /** This is the IoTRelation implementation for C++
  10  *
  11  * @author      Rahmadi Trimananda <rahmadi.trimananda @ uci.edu>
  12  * @version     1.0
  13  * @since       2016-09-06
  14  */
  15 template <class K,class V>
  16 class IoTRelation {
  17         private:
  18                 unordered_multimap<K,V> rel;
  19         public:
  20                 IoTRelation();
  21                 IoTRelation(unordered_multimap<K,V> const& s);
  22                 ~IoTRelation();
  23         public:
  24                 typename unordered_multimap<K,V>::const_iterator find(const K& k);      // Find the object based on key
  25                 bool empty();                                                                                                           // Test is empty?
  26                 typename unordered_multimap<K,V>::const_iterator begin();                       // Iterator
  27                 typename unordered_multimap<K,V>::const_iterator end();                         // Iterator
  28                 std::pair<typename unordered_multimap<K,V>::const_iterator,
  29                         typename unordered_multimap<K,V>::const_iterator>
  30                         equal_range(const K& k);                                                                                // Equal range iterator
  31                 int size();                                                                                                                     // Set size
  32                 unordered_multimap<K,V> values();                                                                       // Return set contents
  33 };
  34
  35
  36 /**
  37  * Default constructor
  38  */
  39 template <class K,class V>
  40 IoTRelation<K,V>::IoTRelation() {
  41
  42 }
  43
  44
  45 /**
  46  * Useful constructor
  47  */
  48 template <class K,class V>
  49 IoTRelation<K,V>::IoTRelation(const unordered_multimap<K,V>& r) {
  50
  51         rel = r;
  52 }
  53
  54
  55 /**
  56  * Default destructor
  57  */
  58 template <class K,class V>
  59 IoTRelation<K,V>::~IoTRelation() {
  60
  61 }
  62
  63
  64 /**
  65  * Find the object k in the set
  66  */
  67 template <class K,class V>
  68 typename unordered_multimap<K,V>::const_iterator IoTRelation<K,V>::find(const K& k) {
  69
  70         return rel.find(k);
  71 }
  72
  73
  74 /**
  75  * Return the "begin" iterator
  76  */
  77 template <class K,class V>
  78 typename unordered_multimap<K,V>::const_iterator IoTRelation<K,V>::begin() {
  79
  80         return rel.begin();
  81 }
  82
  83
  84 /**
  85  * Return the "end" iterator
  86  */
  87 template <class K,class V>
  88 typename unordered_multimap<K,V>::const_iterator IoTRelation<K,V>::end() {
  89
  90         return rel.end();
  91 }
  92
  93
  94 /**
  95  * Return the "equal_range" iterator
  96  */
  97 template <class K,class V>
  98 std::pair<typename unordered_multimap<K,V>::const_iterator,
  99         typename unordered_multimap<K,V>::const_iterator>
 100         IoTRelation<K,V>::equal_range(const K& k) {
 101
 102         return rel.equal_range(k);
 103 }
 104
 105
 106 /**
 107  * Return the size of the set
 108  */
 109 template <class K,class V>
 110 int IoTRelation<K,V>::size() {
 111
 112         return rel.size();
 113 }
 114
 115
 116 /**
 117  * Return a new copy of the set
 118  */
 119 template <class K,class V>
 120 unordered_multimap<K,V> IoTRelation<K,V>::values() {
 121
 122         return new unordered_multimap<K,V>(rel);
 123 }
 124 #endif
 125
 126
 127
 128