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Posted to issues@commons.apache.org by "Ales Dolecek (Created) (JIRA)" <ji...@apache.org> on 2012/01/10 17:27:39 UTC

[jira] [Created] (CHAIN-64) Context should be Map

Context should be Map<String, ? extends Object>
-----------------------------------------------

                 Key: CHAIN-64
                 URL: https://issues.apache.org/jira/browse/CHAIN-64
             Project: Commons Chain
          Issue Type: Bug
            Reporter: Ales Dolecek
            Priority: Minor


Hello,

  I belive that restriction imposed on context value types to be Objects is unnecesary severe. I can imagine context which can only hold values of certain (sub-)class.

I think that the Context should be declared as

interface Context<T> extends Map<String, T extends Object>;

The commands should be generic as well

interface Comamnd<T> {

  Object execute(Context<? extends T> context);

}

The commands provided by the chains can either:

a) be generic as well, or
b) defined as "implements Command<Object>"

Ales

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[jira] [Closed] (CHAIN-64) Context should be Map

Posted by "Simone Tripodi (Closed) (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/CHAIN-64?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Simone Tripodi closed CHAIN-64.
-------------------------------

       Resolution: Duplicate
    Fix Version/s: 2.0
         Assignee: Simone Tripodi

This is a duplicate of CHAIN-58
                
> Context should be Map<String, ? extends Object>
> -----------------------------------------------
>
>                 Key: CHAIN-64
>                 URL: https://issues.apache.org/jira/browse/CHAIN-64
>             Project: Commons Chain
>          Issue Type: Bug
>            Reporter: Ales Dolecek
>            Assignee: Simone Tripodi
>            Priority: Minor
>             Fix For: 2.0
>
>
> Hello,
>   I belive that restriction imposed on context value types to be Objects is unnecesary severe. I can imagine context which can only hold values of certain (sub-)class.
> I think that the Context should be declared as
> interface Context<T> extends Map<String, T extends Object>;
> The commands should be generic as well
> interface Comamnd<T> {
>   Object execute(Context<? extends T> context);
> }
> The commands provided by the chains can either:
> a) be generic as well, or
> b) defined as "implements Command<Object>"
> Ales

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