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direct access to swt classes' fields [message #504794]

Tue, 22 December 2009 17:24

Luca Ferrari

Messages: 159
Registered: November 2009

Senior Member

Hi,
maybe this is a really trivial question, but I don't understand why most classes of SWT (e.g., Point, Rectangular, PaintEvent,...) provide direct access to their members instead of using getters. While both using getters and direct access provide the same result, making a field public means there will be no way to change the way it is accessed. What is the design choice that lead this?

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Re: direct access to swt classes' fields [message #504815 is a reply to message #504794]

Tue, 22 December 2009 19:06

Thomas Schindl

Messages: 6651
Registered: July 2009

Senior Member

Hi,

Though this might not be an authorotive answer here's my interpreation:
* Point, Rectangular are more like structs to pass a round multiple
values
* SWT tries to be as small as possible so there's no overhead needed
for such often access fields which might not be a problem in
Desktop-Envs but think of a paint event access in a embedded device.

Tom

Am 22.12.09 18:24, schrieb Luca Ferrari:
> Hi,
> maybe this is a really trivial question, but I don't understand why most
> classes of SWT (e.g., Point, Rectangular, PaintEvent,...) provide direct
> access to their members instead of using getters. While both using
> getters and direct access provide the same result, making a field public
> means there will be no way to change the way it is accessed. What is the
> design choice that lead this?

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