MATLAB Object-Oriented Programming

AccountManager Class Discussion

function assignStatus(BA)

if BA.AccountBalance < 0

if BA.AccountBalance < -200

BA.AccountStatus = 'closed';

else

BA.AccountStatus = 'overdrawn';

end

end

end

The assignStatus method is the

callback for the InsufficentFunds

event listener. It determines the value of a

BankAccount object AccountStatus

property based on the value of the

AccountBalance property.

The BankAccount class constructor calls

the AccountManager addAccount

method to create and store this listener.

function lh = addAccount(BA)

lh = addlistener(BA, 'InsufficientFunds', ...

@(src, ~)AccountManager.assignStatus(src));

end

addAccount creates the listener for the

InsufficentFunds event that the

BankAccount class defines.

See “Control Listener Lifecycle” on page

11-28

end

end

end statements for methods and for

classdef.

Expand for Class Code

classdef AccountManager

methods (Static)

function assignStatus(BA)

if BA.AccountBalance < 0

if BA.AccountBalance < -200

BA.AccountStatus = 'closed';

else

BA.AccountStatus = 'overdrawn';

end

end

end

function lh = addAccount(BA)

lh = addlistener(BA, 'InsufficientFunds', ...

@(src, ~)AccountManager.assignStatus(src));

end

end

end

3 MATLAB Classes Overview