Justin Deoliveira a écrit :
> So I think code that does this:
>
> class Foo {
> FilterFactory filterFactory;
>
> Foo() {
> filterFactory = FilterFactoryFinder.findFilterFactory();
> }
> }
>
> should do this.
>
> class Foo {
> FilterFactory filterFactory;
>
> Foo( FilterFactory filterFactory ) {
> this.filterFactory = filterFactory;
> }
> }
The alternative that I was talking about (as used in modules that uses
correctly
the hints) is:
class Foo {
FilterFactory filterFactory;
Foo(Hints hints) {
filterFactory = FilterFactoryFinder.findFilterFactory(hints);
}
}
which leads to exactly the same result, with more flexibility (null hints for
default, LENIENT_DATUM_SHIFT, FORCE_LONGITUDE_FIRST_AXIS_ORDER, etc). However
one approach doesn't exclude the other. Both can live in parallel; Hints can
actually be considered as an other flavor of constructor injection. More
complete example:
class Foo {
FilterFactory filterFactory;
Foo() {
this((Hints) null);
}
Foo(Hints hints) {
this(FilterFactoryFinder.findFilterFactory(hints));
}
Foo(FilterFactory filterFactory) {
this.filterFactory = filterFactory;
}
}
Martin
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