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From "Simone Tripodi (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (CHAIN-56) clever Context with generic type "auto-cast" feature
Date Sun, 04 Sep 2011 17:07:10 GMT

     [ https://issues.apache.org/jira/browse/CHAIN-56?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Simone Tripodi resolved CHAIN-56.
---------------------------------

    Resolution: Fixed

fixed on [version-2.0-work|https://svn.apache.org/repos/asf/commons/proper/chain/branches/version-2.0-work]
branch, see [r1165075|https://svn.apache.org/viewvc?view=revision&revision=1165075]

> clever Context with generic type "auto-cast" feature
> ----------------------------------------------------
>
>                 Key: CHAIN-56
>                 URL: https://issues.apache.org/jira/browse/CHAIN-56
>             Project: Commons Chain
>          Issue Type: Improvement
>    Affects Versions: 2.0
>            Reporter: Simone Tripodi
>            Assignee: Simone Tripodi
>             Fix For: 2.0
>
>
> Generics could help us on improving the Context class; since it is clear that Context
is a place where storing/retrieving objects identified by a key, I propose adding two helper
methods:
> {code}
>    /** @since 2.0 */
>    <T> T retrieve( String key );
>    /** @since 2.0 */
>    <T> void store( String key, T object );
> {code}
> that would help users avoid the redundant code of type cast/checking when assignments
are already known (it throws a {{ClassCastException}} if types are not assignable). At the
same time, old pattern is supported, users can choose their
> preferred way to go, depending on their needs.

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