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Posted to dev@nutch.apache.org by "Andrzej Bialecki (JIRA)" <ji...@apache.org> on 2009/12/16 16:45:18 UTC
[jira] Commented: (NUTCH-775) Enhance Searcher interface
[ https://issues.apache.org/jira/browse/NUTCH-775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12791411#action_12791411 ]
Andrzej Bialecki commented on NUTCH-775:
-----------------------------------------
+1. I would suggest creating a subclass of Metadata, where we can guarantee the presence of some required parameters, e.g.:
{code}
public class SearchContext extends Metadata {
protected int numHits;
protected String sortField;
protected String dedupField;
...
// setters and getters for the above
}
{code}
and change the QueryFilter interface to use SearchContext too.
> Enhance Searcher interface
> --------------------------
>
> Key: NUTCH-775
> URL: https://issues.apache.org/jira/browse/NUTCH-775
> Project: Nutch
> Issue Type: Improvement
> Components: searcher
> Reporter: Sami Siren
> Assignee: Sami Siren
> Fix For: 1.1
>
>
> Current Searcher interface is too limited for many purposes:
> Hits search(Query query, int numHits, String dedupField, String sortField,
> boolean reverse) throws IOException;
> It would be nice that we had an interface that allowed adding different features without changing the interface. I am proposing that we deprecate the current search method and introduce something like:
> Hits search(Query query, Metadata context) throws IOException;
> Also at the same time we should enhance the QueryFilter interface to look something like:
> BooleanQuery filter(Query input, BooleanQuery translation, Metadata context)
> throws QueryException;
> I would like to hear your comments before proceeding with a patch.
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