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Discuss with your neighbors logging, assertions, exceptions, defensiveness coupling, and cohesion of this method. /* Sets user as ‘active’ on the server, throws an exception if the * user does not exist on the server */ void activateUserOnServer(String userName) throws CannotActivateException{ log("trying to activate " + userName); assert(isUsernameAcceptable(userName)); boolean isActivated = ServerConnection.activate(userName); if(!isActivated) { throw new CannotActivateException(userName + " not activated"); } Account account = AccountManager.getAccount(userName); account.toggleActivatedStatus(); //mark as activated }

Discuss with your neighbors logging, assertions, exceptions, defensiveness coupling, and cohesion of this method. /* Sets user as ‘active’ on the server, throws an exception if the * user does not exist on the server */ void activateUserOnServer(String userName) throws CannotActivateException{ log("trying to activate " + userName); assert(isUsernameAcceptable(userName)); boolean isActivated = ServerConnection.activate(userName); if(!isActivated) { throw new CannotActivateException(userName + " not activated"); } Account account = AccountManager.getAccount(userName); account.toggleActivatedStatus(); //mark as activated }

Discuss with your neighbors logging, assertions, exceptions, defensiveness coupling, and cohesion of this method. /* Sets user as ‘active’ on the server, throws an exception if the * user does not exist on the server */ void activateUserOnServer(String userName) throws CannotActivateException{ log("trying to activate " + userName); assert(isUsernameAcceptable(userName)); boolean isActivated = ServerConnection.activate(userName); if(!isActivated) { throw new CannotActivateException(userName + " not activated"); } Account account = AccountManager.getAccount(userName); account.toggleActivatedStatus(); //mark as activated }

Discuss with your neighbors logging, assertions, exceptions, defensiveness coupling, and cohesion of this method. /* Sets user as ‘active’ on the server, throws an exception if the * user does not exist on the server */ void activateUserOnServer(String userName) throws CannotActivateException{ log("trying to activate " + userName); assert(isUsernameAcceptable(userName)); boolean isActivated = ServerConnection.activate(userName); if(!isActivated) { throw new CannotActivateException(userName + " not activated"); } Account account = AccountManager.getAccount(userName); account.toggleActivatedStatus(); //mark as activated }

Discuss with your neighbors logging, assertions, exceptions, defensiveness coupling, and cohesion of this method. /* Sets user as ‘active’ on the server, throws an exception if the * user does not exist on the server */ void activateUserOnServer(String userName) throws CannotActivateException{ log("trying to activate " + userName); assert(isUsernameAcceptable(userName)); boolean isActivated = ServerConnection.activate(userName); if(!isActivated) { throw new CannotActivateException(userName + " not activated"); } Account account = AccountManager.getAccount(userName); account.toggleActivatedStatus(); //mark as activated }

Discuss with your neighbors logging, assertions, exceptions, defensiveness coupling, and cohesion of this method. /* Sets user as ‘active’ on the server, throws an exception if the * user does not exist on the server */ void activateUserOnServer(String userName) throws CannotActivateException{ log("trying to activate " + userName); assert(isUsernameAcceptable(userName)); boolean isActivated = ServerConnection.activate(userName); if(!isActivated) { throw new CannotActivateException(userName + " not activated"); } Account account = AccountManager.getAccount(userName); account.toggleActivatedStatus(); //mark as activated }

Discuss with your neighbors logging, assertions, exceptions, defensiveness coupling, and cohesion of this method. /* Sets user as ‘active’ on the server, throws an exception if the * user does not exist on the server */ void activateUserOnServer(String userName) throws CannotActivateException{ log("trying to activate " + userName); assert(isUsernameAcceptable(userName)); boolean isActivated = ServerConnection.activate(userName); if(!isActivated) { throw new CannotActivateException(userName + " not activated"); } Account account = AccountManager.getAccount(userName); account.toggleActivatedStatus(); //mark as activated }

Discuss with your neighbors logging, assertions, exceptions, defensiveness coupling, and cohesion of this method. /* Sets user as ‘active’ on the server, throws an exception if the * user does not exist on the server */ void activateUserOnServer(String userName) throws CannotActivateException{ log("trying to activate " + userName); assert(isUsernameAcceptable(userName)); boolean isActivated = ServerConnection.activate(userName); if(!isActivated) { throw new CannotActivateException(userName + " not activated"); } Account account = AccountManager.getAccount(userName); account.toggleActivatedStatus(); //mark as activated }

Discuss with your neighbors logging, assertions, exceptions, defensiveness coupling, and cohesion of this method. /* Sets user as ‘active’ on the server, throws an exception if the * user does not exist on the server */ void activateUserOnServer(String userName) throws CannotActivateException{ log("trying to activate " + userName); assert(isUsernameAcceptable(userName)); boolean isActivated = ServerConnection.activate(userName); if(!isActivated) { throw new CannotActivateException(userName + " not activated"); } Account account = AccountManager.getAccount(userName); account.toggleActivatedStatus(); //mark as activated }

Discuss with your neighbors logging, assertions, exceptions, defensiveness coupling, and cohesion of this method. /* Sets user as ‘active’ on the server, throws an exception if the * user does not exist on the server */ void activateUserOnServer(String userName) throws CannotActivateException{ log("trying to activate " + userName); assert(isUsernameAcceptable(userName)); boolean isActivated = ServerConnection.activate(userName); if(!isActivated) { throw new CannotActivateException(userName + " not activated"); } Account account = AccountManager.getAccount(userName); account.toggleActivatedStatus(); //mark as activated }

V0.1 How?

V0.1 How?

[extra] Boom! 14

[Extra] what you think you can do What you can do What you think you can do

V0.1

V0.5

V0.1 V0.2 V0.3 V0.4 [by next tutorial]

Previous lecture: Better design Better documentation Better code better everything! Theme for this week: Improving the product. Improving ourselves.

Explain this design in less than 10 words explain {answer} e.g. explain blah blah explain {answer} e.g. explain blah blah {abstract} Command execute() {abstract} undo() {abstract} Edit execute() undo() execute() undo() Delete execute() undo() execute() undo() Add execute() undo() execute() undo() History add(Command) * Command cmd = createCommand(commandString); cmd.execute(); history.add(cmd); … cmd.undo();