[jira] [Updated] (SQOOP-1987) Sqoop2: Add a NullMatcher

["Qian Xu (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SQOOP-1987?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Qian Xu updated SQOOP-1987:
---------------------------
    Affects Version/s: 1.99.5

> Sqoop2: Add a NullMatcher
> -------------------------
>
>                 Key: SQOOP-1987
>                 URL: https://issues.apache.org/jira/browse/SQOOP-1987
>             Project: Sqoop
>          Issue Type: Sub-task
>    Affects Versions: 1.99.5
>            Reporter: Qian Xu
>            Assignee: Qian Xu
>             Fix For: 2.0.0
>
>
> The {{MatcherFactory}} will create different matcher according to toSchema and fromSchema conditions.
> In {{LocationMatcher}}, it has a rule 0
> {code}
>   public Object[] getMatchingData(Object[] fields) {
>     if (getToSchema().isEmpty()) {
>       // No destination schema found. No need to convert anything.
>       return fields;
>     }
> {code}
> I'm thinking we can create a third matcher {{NullMatcher}}, which simply return input fields as result.



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