Object-Oriented Programming: Beyond the Basics
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In the last demo, you implemented the Singleton pattern on ContactsBook. In this demo, you’ll implement the Factory pattern. Select the Sources folder. Click File ▸ New File, then name your new file ContactsFactory.
public class ContactsFactory {
}
public class func createPersonContact(
firstName: String,
lastName: String,
phone: String
) -> ContactCard {
}
public class func createCompanyContact(
companyName: String,
phone: String
) -> ContactCard {
}
public class func createPersonContact(
firstName: String,
lastName: String,
phoneNumber: String
) -> ContactCard {
PersonContactCard(firstName: firstName, lastName: lastName, phoneNumber: phone) // new code
}
public class func createCompanyContact(
companyName: String,
phoneNumber: String
) -> ContactCard {
CompanyContactCard(companyName: companyName, phoneNumber: phone) // new code
}
let ehabContact = ContactsFactory.createPersonContact(firstName: "Ehab", lastName: "Amer", phoneNumber: "1234567890")
let timContact = ContactsFactory.createPersonContact(firstName: "Tim", lastName: "Condon", phoneNumber: "0987654321")
...
let kodeco = ContactsFactory.createCompanyContact(companyName: "Kodeco", phoneNumber: "1111111111")
let razeware = ContactsFactory.createCompanyContact(companyName: "Razeware", phoneNumber: "2222222222")