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LongFormArtistResource: (A, 1)
LongFormBookResource: (A, 2)
ShortFormArtistResource: (B, 1)
ShortFormBookResource: (B, 2)
There are four combinations and it is composed of View(A & B) and Resource(1 & 2).
Obviously, some classes metioned above are duplicate, which are highlighted with blue and red color.
Once there are four sub-classes of Resouce, the number of all possible classes increases to eight (2 by 4).
The total number keeps small if we build a has_a bridge between the two classes.
In this case the total number of sub-classes is six(2 plus4) instead of eight.
1: namespace BridgePattern
2: {3: interface IResource
4: {5: string snippet();
6: string title();
7: string images();
8: string url();
9: } 10: }
1: namespace BridgePattern
2: {3: class Artist
4: {5: private string biography;
6: private string firstName;
7: private string lastName;
8: private string imagePath;
9: private string urlPath;
10: public Artist(string firstName, string lastName, string biography, string imagePath, string urlPath)
11: {12: this.biography = biography;
13: this.firstName = firstName;
14: this.lastName = lastName;
15: this.imagePath = imagePath;
16: this.urlPath = urlPath;
17: }18: public string bio()
19: {20: return biography;
21: }22: public string fName() { return this.firstName; }
23: public string lName() { return this.lastName; }
24: public string image() { return this.imagePath; }
25: public string url() { return this.urlPath; }
26: }27: class ArtistResouce : IResource
28: { 29: Artist artist;30: public ArtistResouce(Artist artist)
31: {32: this.artist = artist;
33: }34: public string images()
35: {36: return this.artist.image();
37: } 38: 39: public string snippet()
40: {41: return this.artist.bio();
42: } 43: 44: public string title()
45: {46: return this.artist.fName() + " " + this.artist.lName();
47: } 48: 49: public string url()
50: {51: return this.artist.url();
52: } 53: } 54: }
1: namespace BridgePattern
2: {3: abstract class View
4: {5: protected IResource resource;
6: public View(IResource resource)
7: {8: this.resource = resource;
9: }10: public abstract string Show();
11: }12: class LongForm : View
13: {14: public LongForm(IResource resource) : base(resource)
15: { 16: 17: }18: public override string Show()
19: {20: string html = string.Format("{0}\n{1}\n{2}", resource.title(), resource.images(), resource.snippet());
21: return this.resource.snippet();
22: } 23: } 24: }
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