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From "Bill Havanki (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (ACCUMULO-2497) InstanceFactory
Date Wed, 19 Mar 2014 14:16:43 GMT

     [ https://issues.apache.org/jira/browse/ACCUMULO-2497?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Bill Havanki updated ACCUMULO-2497:
-----------------------------------

    Description: 
Working on ACCUMULO-2470 (unit tests for server/base) is made difficult by the heavy dependence
on static method calls in our architecture. This ticket is for introducing an {{InstanceFactory}}
interface that will greatly ease testing of code that currently retrieves instances via static
methods (e.g., {{HdfsZooInstance.getInstance()}}).

Limitations:
* Work here should be limited to creating {{InstanceFactory}} and its implementations, and
not integrating it into existing code (yet).
* Work is limited to 1.6 and later. To avoid perturbing the 1.6.0 release no new code may
be introduced into the public API ({{Instance}} is in the public API).
* A refactoring of the client API is being considered (see ACCUMULO-2128), so this change
should not further complicate - and should hopefully help - that future effort.

  was:
Working on ACCUMULO-2470 (unit tests for server/base) is made difficult by the heavy dependence
on static method calls in our architecture. This ticket is for introducing an {{InstanceFactory}}
interface that will greatly ease testing of code that currently retrieves instances via static
methods (e.g., {{HdfsZooInstance.getInstance()}}.

Limitations:
* Work here should be limited to creating {{InstanceFactory}} and its implementations, and
not integrating it into existing code (yet).
* Work is limited to 1.6 and later. To avoid perturbing the 1.6.0 release no new code may
be introduced into the public API ({{Instance}} is in the public API).
* A refactoring of the client API is being considered (see ACCUMULO-2128), so this change
should not further complicate - and should hopefully help - that future effort.


> InstanceFactory
> ---------------
>
>                 Key: ACCUMULO-2497
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-2497
>             Project: Accumulo
>          Issue Type: Improvement
>          Components: client
>            Reporter: Bill Havanki
>            Assignee: Bill Havanki
>            Priority: Minor
>              Labels: factory, static, testability
>
> Working on ACCUMULO-2470 (unit tests for server/base) is made difficult by the heavy
dependence on static method calls in our architecture. This ticket is for introducing an {{InstanceFactory}}
interface that will greatly ease testing of code that currently retrieves instances via static
methods (e.g., {{HdfsZooInstance.getInstance()}}).
> Limitations:
> * Work here should be limited to creating {{InstanceFactory}} and its implementations,
and not integrating it into existing code (yet).
> * Work is limited to 1.6 and later. To avoid perturbing the 1.6.0 release no new code
may be introduced into the public API ({{Instance}} is in the public API).
> * A refactoring of the client API is being considered (see ACCUMULO-2128), so this change
should not further complicate - and should hopefully help - that future effort.



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