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From "Uwe Schindler (JIRA)" <>
Subject [jira] Commented: (LUCENE-1796) Speed up repeated TokenStream init
Date Mon, 10 Aug 2009 17:59:14 GMT


Uwe Schindler commented on LUCENE-1796:

I have another idea:
Why not make the AttributeImpls itsself a linked list. So each AttributeImpl gets a member
called "prevAttributeImpl" that is the staring point. Whenever an AttributeImpl is added to
an AttributeSource, the prevAttributeImpl is set to the previously added one. By this iterating
over AttributeImpls is just a simple for-loop from the first attribute.

As Attributes can only added to one AttributeSource and not to multiple ones, I see no problem
with it. And AttributeImpls can also not removed, so no problem at all.

> Speed up repeated TokenStream init
> ----------------------------------
>                 Key: LUCENE-1796
>                 URL:
>             Project: Lucene - Java
>          Issue Type: Improvement
>            Reporter: Mark Miller
>            Assignee: Uwe Schindler
>             Fix For: 2.9
>         Attachments: LUCENE-1796.patch, LUCENE-1796.patch, LUCENE-1796.patch
>  by caching isMethodOverridden results

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