54 lines
1.1 KiB
C++
Executable file
54 lines
1.1 KiB
C++
Executable file
#include <iostream>
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#include <vector>
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#include "Attribute.h"
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//Functional
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class Relation {
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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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int size;
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public:
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Relation(string n) {
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name = n;
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size = 0;
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}
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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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size = a.size();
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}
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//addAttribute
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string getTableName() { return name; }
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vector<Attribute> getAttributes() { return att; }
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int getSize() { return size; }
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//assumes that all attribute titles are unique
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void projectQuery(string input) {
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cout << "-----------Initiated Query Projection---------" << endl;
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for(int i = 0; i < att.size(); i++) {
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if(att[i].getName() == input) {
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cout << "Column Title: " << input << endl;
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for(int j = 0; j < att[i].getSize(); j++) {
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cout << att[i].getValues()[j] << endl;
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}
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break;
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}
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else
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cout << "Attribute input not valid" << endl;
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}
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}
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void display() {
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cout << "--------------------------\n";
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cout << name << "\n";
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for (int i = 0; i < att.size(); ++i){
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att[i].display();
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}
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cout << "--------------------------\n";
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}
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};
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