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From "Uwe Schindler (JIRA)" <j...@apache.org>
Subject [jira] Deleted: (LUCENE-2375) Add introspection API to AttributeSource/AttributeImpl
Date Tue, 06 Apr 2010 23:16:33 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-2375?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Uwe Schindler deleted LUCENE-2375:
----------------------------------


> Add introspection API to AttributeSource/AttributeImpl
> ------------------------------------------------------
>
>                 Key: LUCENE-2375
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2375
>             Project: Lucene - Java
>          Issue Type: Improvement
>            Reporter: Uwe Schindler
>            Assignee: Uwe Schindler
>
> AttributeSource/TokenStream inspection in Solr needs to have some insight into the contents
of AttributeImpls. As LUCENE-2302 has some problems with toString() [which is not structured
and conflicts with CharSequence's definition for CharTermAttribute], I propose an simple API
that get a default implementation in AttributeImpl (just like toString() current):
> - Iterator<Map.Entry<String,?>> AttributeImpl.contentsIterator() returns
an iterator (for most attributes its a singleton) of a key-value pair, e.g. "term"->"foobar","startOffset"->Integer.valueOf(0),...
> - AttributeSource gets the same method, it just concat the iterators of each getAttributeImplsIterator()
AttributeImpl
> No backwards problems occur, as the default toString() method will work like before (it
just gets iterator and lists), but we simply remove the documentation for the format. (Char)TermAttribute
gets a special impl fo toString() according to CharSequence and a corresponding iterator.
> I also want to remove the abstract hashCode() and equals() methods from AttributeImpl,
as they are not needed and just create work for the implementor.

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