[jira] [Commented] (METRON-1568) Stellar should have a _ special variable which returns the message in map form

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/METRON-1568?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16483821#comment-16483821 ] 

ASF GitHub Bot commented on METRON-1568:
----------------------------------------

Github user ottobackwards commented on a diff in the pull request:

    https://github.com/apache/metron/pull/1021#discussion_r189861295
  
    --- Diff: metron-platform/metron-common/src/main/java/org/apache/metron/common/configuration/enrichment/handler/StellarConfig.java ---
    @@ -142,8 +143,14 @@ else if(kv.getValue() instanceof List) {
       {
     
    --- End diff --
    
    Why would this be an either or situation?
    What if I have a 'match' expression that uses both _ and other vars?


> Stellar should have a _ special variable which returns the message in map form
> ------------------------------------------------------------------------------
>
>                 Key: METRON-1568
>                 URL: https://issues.apache.org/jira/browse/METRON-1568
>             Project: Metron
>          Issue Type: Improvement
>            Reporter: Casey Stella
>            Priority: Major
>
> In order to support functions which operate on the whole message, we should have a special variable (_, keeping with the vaguely scala theme) which can return the entire underlying message.  This map should be immutable.



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