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Posted to dev@lucene.apache.org by "Hoss Man (JIRA)" <ji...@apache.org> on 2017/09/11 21:00:03 UTC

[jira] [Resolved] (SOLR-11132) Refactor common getSortField logic in various FieldTypes

     [ https://issues.apache.org/jira/browse/SOLR-11132?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hoss Man resolved SOLR-11132.
-----------------------------
       Resolution: Fixed
    Fix Version/s: 7.1
                   master (8.0)

thanks Jason!

> Refactor common getSortField logic in various FieldTypes
> --------------------------------------------------------
>
>                 Key: SOLR-11132
>                 URL: https://issues.apache.org/jira/browse/SOLR-11132
>             Project: Solr
>          Issue Type: Improvement
>      Security Level: Public(Default Security Level. Issues are Public) 
>            Reporter: Hoss Man
>            Assignee: Hoss Man
>             Fix For: master (8.0), 7.1
>
>         Attachments: SOLR-11132.patch, SOLR-11132.patch
>
>
> This pattern exists a lot w/ some minor fluxuations in copy/paste variation...
> {code}
>   @Override
>   public SortField getSortField(SchemaField field, boolean top) {
>     field.checkSortability();
>     Object missingValue = null;
>     boolean sortMissingLast = field.sortMissingLast();
>     boolean sortMissingFirst = field.sortMissingFirst();
>     if (sortMissingLast) {
>       missingValue = top ? SOMECLASS.MIN_VALUE : SOMECLASS.MAX_VALUE;
>     } else if (sortMissingFirst) {
>       missingValue = top ? SOMECLASS.MAX_VALUE : SOMECLASS.MIN_VALUE;
>     }
>     SortField sf = new SortField(field.getName(), SortField.Type.SOMETYPE, top);
>     sf.setMissingValue(missingValue);
>     return sf;
>   }
> {code}
> We should refactor it into a helper method along the lines of...
> {code}
>   @Override
>   public static SortField getSortField(SchemaField field, boolean top, SortField.Type sortType, 
>                                        Object missingLow, Object missingHigh) {
>     field.checkSortability();
>     Object missingValue = null;
>     boolean sortMissingLast = field.sortMissingLast();
>     boolean sortMissingFirst = field.sortMissingFirst();
>     if (sortMissingLast) {
>       missingValue = top ? missingLow : missingHigh;
>     } else if (sortMissingFirst) {
>       missingValue = top ? missingHigh : missingLow;
>     }
>     SortField sf = new SortField(field.getName(), sortType, top);
>     sf.setMissingValue(missingValue);
>     return sf;
>   }
> {code}
> So it can be re-used via...
> {code}
>   @Override
>   public SortField getSortField(SchemaField field, boolean top) {
>     return getSortField(field, top, SortField.Type.SOMETIME, 
>                         SOMECLASS.MIN_VALUE, SOMECLASS.MAX_VALUE);
>   }
> {code}



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