Moved getter near it's setter counter part to have them next to each other.

Moved getter near it's setter counter part to have them next to each other.
Still this particular "base" class needs cleanup in things of position of
methods: first private, then protected then public and always keep setter
and getter close to each other and at top position (right after contructor).
All existing factory methods always lead setters and getters (right after
constructor).

Signed-off-by: Roland Häder <roland@mxchange.org>