I forget, this known as "Decorator Pattern": http://en.wikipedia.org/wiki/Decorator_pattern
----- Uwe Schindler H.-H.-Meier-Allee 63, D-28213 Bremen http://www.thetaphi.de eMail: u...@thetaphi.de > -----Original Message----- > From: Uwe Schindler [mailto:u...@thetaphi.de] > Sent: Thursday, September 10, 2009 4:09 PM > To: java-dev@lucene.apache.org > Subject: RE: LowerCaseFilter, is there a reason why the class is final? > > See https://issues.apache.org/jira/browse/LUCENE-1753 > > In general, if you want to add functionality plug another filter into the > chain. At least the implementations should be final (next/incrementToken). > > ----- > Uwe Schindler > H.-H.-Meier-Allee 63, D-28213 Bremen > http://www.thetaphi.de > eMail: u...@thetaphi.de > > > > -----Original Message----- > > From: Daniel Shane [mailto:sha...@lexum.umontreal.ca] > > Sent: Thursday, September 10, 2009 4:06 PM > > To: java-dev@lucene.apache.org > > Subject: LowerCaseFilter, is there a reason why the class is final? > > > > Hi all, > > > > I was wondering why the LowerCaseFilter is declared final? In my code, I > > would like to extend it but apparently its not possible. I'm just > > wondering why extending this type of class is considered evil? > > > > Daniel Shane > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: java-dev-unsubscr...@lucene.apache.org > > For additional commands, e-mail: java-dev-h...@lucene.apache.org > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-dev-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-dev-h...@lucene.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: java-dev-unsubscr...@lucene.apache.org For additional commands, e-mail: java-dev-h...@lucene.apache.org
