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From "Tim Costermans (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-4009) Implement toString() method in TermsFilter
Date Sun, 22 Apr 2012 09:51:35 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-4009?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13259063#comment-13259063
] 

Tim Costermans commented on LUCENE-4009:
----------------------------------------

Hey Chris,

Basically all the subclasses of org.apache.lucene.search.Filter should implement their own
toString() method.
Maybe this can be enforced by adding this to the Filter class.
{code}
@Override
public abstract String  toString();
{code}
I was going to investigate this, but this will be something for next week.
                
> Implement toString() method in TermsFilter
> ------------------------------------------
>
>                 Key: LUCENE-4009
>                 URL: https://issues.apache.org/jira/browse/LUCENE-4009
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: modules/other
>    Affects Versions: 3.5, 3.6
>            Reporter: Tim Costermans
>            Priority: Trivial
>         Attachments: LUCENE-4009__Improved_previous_implementation_of__toString()_method_in_TermsFilter_+_added.patch,
LUCENE-4009__implemented_toString()_method_in_TermsFilter_.patch
>
>
> LUCENE-1049 introduced a enhanced implementation of the toString() method in the BooleanFilter
clause.
> This was an improvement, however I'm still seeing a lot Lucene filter classes not overriding
the toString method resulting in a toString returning the classname and the hashcode of the
object. 
> This can be useful sometimes, but it's totally not useful in my case.
> I want to see the properties set in the filters so I know which Lucene query was created.
> Now:
> BooleanFilter(+BooleanFilter(BooleanFilter(+org.apache.lucene.search.TermsFilter@ea81ba60
+org.apache.lucene.search.TermsFilter@26ea3cbc) BooleanFilter(+org.apache.lucene.search.TermsFilter@df621f09
+org.apache.lucene.search.TermsFilter@2f712446)))
> Wanted behavior:
> BooleanFilter(+BooleanFilter(BooleanFilter(+inStock:Y +barCode:12345678) BooleanFilter(+isHeavy:N
+isDamaged:Y)))

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