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From "Trevor McKay (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMBARI-1995) Allow RoleCommandOrder objects to be created dynamically with a StackId and AmbariMetaInfo as context
Date Tue, 23 Apr 2013 18:35:16 GMT

    [ https://issues.apache.org/jira/browse/AMBARI-1995?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13639366#comment-13639366
] 

Trevor McKay commented on AMBARI-1995:
--------------------------------------

Patch to follow for trunk, extra tweaks there for referencing dependencies.
                
> Allow RoleCommandOrder objects to be created dynamically with a StackId and AmbariMetaInfo
as context
> -----------------------------------------------------------------------------------------------------
>
>                 Key: AMBARI-1995
>                 URL: https://issues.apache.org/jira/browse/AMBARI-1995
>             Project: Ambari
>          Issue Type: Improvement
>    Affects Versions: 1.2.0
>         Environment: Fedora/RHEL (but should be generally applicable)
>            Reporter: Trevor McKay
>         Attachments: RCO.patch
>
>
> Currently, the RoleCommandOrder object is created statically and defines fixed dependencies
used for stage generation.
> It should be possible to create RoleCommandOrder objects with AmbariMetaInfo (injected
by Guice) and a StackId argument to initialize().  This would allow the dependencies for stage
planning to be generated relative to the particular stack being used.
> Generated RCOs can be cached against the StackId so they can be created once per StackId.

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