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Re: Parameterized Factory with additional parameter requires new interface?

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From	j4n bur53 <janburse@fastmail.fm>
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Subject	Re: Parameterized Factory with additional parameter requires new interface?
Date	Fri, 28 Oct 2016 10:27:06 +0200
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http://stackoverflow.com/questions/15200362/when-to-use-single-method-interfaces-in-java



mike schrieb:
> Hi,
>
> We have the following factory interface today:
>
> public interface Factory<T, R> {
>
>      /**
>       * Creates a new equipment type instance
>       *
>       * @param resource
>       * @return equipment instance of type T
>       */
>      public T create(R data);
>
> }
>
>
> Now we need an additional create method that takes an additional parameter of type P.
>
>
> public interface Factory<T, R,P> {
>
>      /**
>       * Creates a new equipment type instance
>       *
>       * @param  resource
>       * @return equipment instance of type T
>       */
>      public T create(R resource);
>
>      /**
>       * Creates a new equipment type instance
>       *
>       * @param resource
>       * @param parameter
>       * @return equipment instance of type T
>       */
>      public T create(R resource,P parameter);
> }
>
>
> Then in the code I get:
>
> Incorrect number of arguments for type Factory<T,R,P>; it cannot be parameterized with arguments <XXXtype, XXXresource>
>
> Does this mean we have to create a new parameterized interface for each additional create() method that we have?
>
> If that is the case can you help me understand why?
>
> //mike
>

Thread

Parameterized Factory with additional parameter requires new interface? mike <mikaelpetterson@hotmail.com> - 2016-10-27 23:51 -0700
  Re: Parameterized Factory with additional parameter requires new interface? j4n bur53 <janburse@fastmail.fm> - 2016-10-28 10:27 +0200
  Re: Parameterized Factory with additional parameter requires new interface? Andreas Leitgeb <avl@logic.at> - 2016-10-28 11:59 +0000
  Re: Parameterized Factory with additional parameter requires new interface? Patrick Roemer <sangamon@netcologne.de> - 2016-10-28 15:17 +0200
    Re: Parameterized Factory with additional parameter requires new interface? Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-10-28 11:12 -0400
      Re: Parameterized Factory with additional parameter requires new interface? j4n bur53 <janburse@fastmail.fm> - 2016-10-28 18:07 +0200
        Re: Parameterized Factory with additional parameter requires new interface? Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-10-28 16:43 -0400

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