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 final {
  17         private:
  18                 const unordered_multimap<K,V>* rel;
  19         public:
  20                 IoTRelation();
  21                 //IoTRelation(unordered_multimap<K,V> const& s);
  22                 IoTRelation(const unordered_multimap<K,V>* s);
  23                 ~IoTRelation();
  24         public:
  25                 typename unordered_multimap<K,V>::const_iterator find(const K& k);      // Find the object based on key
  26                 bool empty();                                                                                                           // Test is empty?
  27                 typename unordered_multimap<K,V>::const_iterator begin();                       // Iterator
  28                 typename unordered_multimap<K,V>::const_iterator end();                         // Iterator
  29                 std::pair<typename unordered_multimap<K,V>::const_iterator,
  30                         typename unordered_multimap<K,V>::const_iterator>
  31                         equal_range(const K& k);                                                                                // Equal range iterator
  32                 int size();                                                                                                                     // Set size
  33                 unordered_multimap<K,V>* values();                                                                      // Return set contents
  34 };
  35
  36
  37 /**
  38  * Default constructor
  39  */
  40 template <class K,class V>
  41 IoTRelation<K,V>::IoTRelation() {
  42
  43 }
  44
  45
  46 /**
  47  * Useful constructor
  48  */
  49 template <class K,class V>
  50 //IoTRelation<K,V>::IoTRelation(const unordered_multimap<K,V>& r) {
  51 IoTRelation<K,V>::IoTRelation(const unordered_multimap<K,V>* r) {
  52
  53         rel = r;
  54 }
  55
  56
  57 /**
  58  * Default destructor
  59  */
  60 template <class K,class V>
  61 IoTRelation<K,V>::~IoTRelation() {
  62
  63 }
  64
  65
  66 /**
  67  * Find the object k in the set
  68  */
  69 template <class K,class V>
  70 typename unordered_multimap<K,V>::const_iterator IoTRelation<K,V>::find(const K& k) {
  71
  72         return (new unordered_multimap<K,V>(*rel))->find(k);
  73 }
  74
  75
  76 /**
  77  * Return the "begin" iterator
  78  */
  79 template <class K,class V>
  80 typename unordered_multimap<K,V>::const_iterator IoTRelation<K,V>::begin() {
  81
  82         return (new unordered_multimap<K,V>(*rel))->begin();
  83 }
  84
  85
  86 /**
  87  * Return the "end" iterator
  88  */
  89 template <class K,class V>
  90 typename unordered_multimap<K,V>::const_iterator IoTRelation<K,V>::end() {
  91
  92         return (new unordered_multimap<K,V>(*rel))->end();
  93 }
  94
  95
  96 /**
  97  * Return the "equal_range" iterator
  98  */
  99 template <class K,class V>
 100 std::pair<typename unordered_multimap<K,V>::const_iterator,
 101         typename unordered_multimap<K,V>::const_iterator>
 102         IoTRelation<K,V>::equal_range(const K& k) {
 103
 104         return (new unordered_multimap<K,V>(*rel))->equal_range(k);
 105 }
 106
 107
 108 /**
 109  * Return the size of the set
 110  */
 111 template <class K,class V>
 112 int IoTRelation<K,V>::size() {
 113
 114         return rel->size();
 115 }
 116
 117
 118 /**
 119  * Return a new copy of the set
 120  */
 121 template <class K,class V>
 122 unordered_multimap<K,V>* IoTRelation<K,V>::values() {
 123
 124         return new unordered_multimap<K,V>(*rel);
 125 }
 126 #endif
 127
 128
 129
 130