attribute works as expects
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903b6c98d5
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94912e6b14
4 changed files with 38 additions and 39 deletions
25
Attribute.h
25
Attribute.h
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@ -9,25 +9,36 @@ using namespace std;
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class Attribute {
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//a named column of a relation
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string name;
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bool isKey;
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string type;
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bool key;
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int size;
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public:
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vector<string> values;
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void initializeAttribute(string n, vector<string> a){
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Attribute(string n, string t, bool k){
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name = n;
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values = a;
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type = t;
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key = k;
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size = 0;
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}
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void addRow(string v) {
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values.push_back(v);
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}
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string getName(){
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return name;
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}
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Attribute(){ }
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string getType(){
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return type;
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}
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bool isKey(){
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return key;
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}
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void display()
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{
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14
Relation.h
14
Relation.h
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@ -6,21 +6,19 @@ using namespace std;
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//NOT DONE
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class Relation {
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//a table with rows and columns
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string name; //The title the user gives it
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vector< Attribute > att; //A vector of the columns
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vector<Attribute> att; //A vector of the columns
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public:
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Relation();
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//constructor
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Relation(string n, vector< Attribute > a) {
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Relation(string n, vector<Attribute> a) {
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name = n;
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att = a;
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}
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}
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void addTuple(vector< string > tuple) {
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//Loop through the attribute columns
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for(int i = 0; i < att.size(); i++) {
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@ -28,11 +26,15 @@ public:
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for(int j = 0; j < att[i].values.size(); j++){
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//In this column, at this element's spot, assign an element from the tuple vector to this spot
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(att[i].values[j]).assign(tuple[i]);
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att[i].addRow(tuple[i]);
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}
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}
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}
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string getTableName() {
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return name;
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}
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void displayTableName() {
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cout << "The table name is: " << name << endl;
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}
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BIN
a.out
Executable file
BIN
a.out
Executable file
Binary file not shown.
38
test.cpp
38
test.cpp
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@ -5,40 +5,26 @@
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using namespace std;
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int main() {
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int main() {
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Attribute atributo("shamWow", "VARCHAR(10)", false);
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/*
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DBEngine engine;
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Relation r;
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Attribute<int> a;
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*/
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atributo.addRow("rag");
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atributo.addRow("sponge");
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atributo.addRow("wooow");
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atributo.addRow("cloth");
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vector<string> shamWow;
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shamWow.push_back("rag");
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shamWow.push_back("sponge");
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shamWow.push_back("wooow");
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shamWow.push_back("cloth");
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Attribute atributo;
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atributo.initializeAttribute("atributo",shamWow);
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atributo.display();
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vector<string> doom;
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doom.push_back("zombieman");
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doom.push_back("revenant");
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doom.push_back("imp");
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doom.push_back("archvile");
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Attribute atributo2("doom", "VARCHAR(20)", false);
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atributo2.addRow("zombieman");
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atributo2.addRow("revenant");
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atributo2.addRow("imp");
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atributo2.addRow("archvile");
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Attribute atributo2;
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atributo2.initializeAttribute("attribute_2", doom);
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atributo2.display();
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string line1 = "Table_1";
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//Relation r(line1, my_attributes);
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}
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