bridge

Homework 5

Goal : to gain practical experience in applying the structural pattern.

It is necessary to implement a simple graph visualiser using two different graphs API. You can choose how you want to visualise the graph yourself (e.g. draw tops in a circle). The application shall support two implementations of columns: on edge list and the adjacency matrix.

public abstract class Graph {

    /**
    * Bridge to drawing api
    */
    private DrawingApi drawingApi;

    public Graph(DrawingApi drawingApi) {
        this.drawingApi = drawingApi;
    }

    public abstract void drawGraph();
}

public interface DrawingApi {
    long getDrawingAreaWidth();
    long getDrawingAreaHeight();
    void drawCircle(...);
    void drawLine(...);
}

Comments:

• API selection and implementation of the column must be defined through command line arguments when launching the application;
• the class framework can be changed (add new fields/methods, method parameters, etc.);
• java.awt and javafx can be used as examples;
• you can use any language and any api to draw (the most important thing is that they are fundamentally different).