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Object oriented programming: Difference between revisions
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(Created page with "GNU/Octave has support for object oriented programming. Below you can find some tips and tricks. == Making all fields public == Fields of an Octave object are by default priv...") |
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GNU/Octave has support for object oriented programming. Below you can find some tips and tricks. | GNU/Octave has support for object oriented programming. Below you can find some tips and tricks. | ||
== Making all fields public == | == Creating classes == | ||
To create a class you need to make a folder prefixed with the symbol '''@'''. Inside the folder you need to create the ''constructor'' which is a function with the same name as the folder. For example, a class called ''dummy'' will be created in the folder ''@dummy'' and inside we should find a function (a method) ''dummy.m''. The minimal content of this method is | |||
{{Code|A dummy class|<syntaxhighlight lang="matlab" style="font-size:13px"> | |||
function obj = dummy () | |||
obj = struct(); | |||
obj = class (obj, "dummy"); | |||
endfunction | |||
</syntaxhighlight>}} | |||
=== Making all fields public === | |||
Fields of an Octave object are by default private. This means that only methods of the object can access the field directly. For a user to access a given field directly, a method must be provided (sometimes called a ''getter'' method). If such methods is not provided, a user cannot retrieve the contents of the field. There is a work around: we can get the internal structure representing and object and from there access all the fields. The next example creates a ftp object and retrieves all the fields | Fields of an Octave object are by default private. This means that only methods of the object can access the field directly. For a user to access a given field directly, a method must be provided (sometimes called a ''getter'' method). If such methods is not provided, a user cannot retrieve the contents of the field. There is a work around: we can get the internal structure representing and object and from there access all the fields. The next example creates a ftp object and retrieves all the fields | ||