Thanks for your reply.
PyLucene version is 2.0.0(Lucene-java-2.0.0-453447)
Python version is 2.5.1
machine i686-pc-linux-gnu
gcc-3.4.6
LC_ALL=en_us
In fact, When I run >python samples/ LuceneInAction/ KeywordAnalyzerTest.py, It
works well as you mention, but that's not the point.
KeywordAnalyzerTest.py just corresponses to KeywordAnalyzer. The object I throw
my doubt on is SimpleKeywordAnalyzer, which make use of the Tokenizer and pass
on a self-defining class instance to it. However, it fails and offers me a
wrong alert.
lia/analysis/SimpleKeyWordAnalyzer.py
Plz do me a favor to check two ideas:
1. Can I simply use a Lucene-Java class as the base class, and then override a
(abstract or not) method of it.
class A?LetterTokenizer):
def isTokenizer(self, ch):
return ch.isalnum()
2. Can I pass on a new-type general python object, which implement some method
of a Java-Lucene class', as:
class A(object):
def isTokenChar(self, ch):
return c.isalnum()
LetterTokenizer(A, reader)
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>Today's Topics:
>
> 1. Support or not: extension from a Java Lucene
> Implementation(Tokenizer or CharTokenizer) (Liang Xing)
> 2. Re: Support or not: extension from a Java Lucene
> Implementation(Tokenizer or CharTokenizer) (Andi Vajda)
>
>
>----------------------------------------------------------------------
>
>Message: 1
>Date: Mon, 27 Aug 2007 10:22:31 +0800 (CST)
>From: "Liang Xing" <[EMAIL PROTECTED]>
>Subject: [pylucene-dev] Support or not: extension from a Java Lucene
> Implementation(Tokenizer or CharTokenizer)
>To: [email protected]
>Message-ID:
> <[EMAIL PROTECTED]>
>Content-Type: text/plain; charset="gbk"
>
> 1.Quotas from PyLucene: """Technically, the PyLucene programmer is not
> providing an 'extension'
>but a Python implementation of a set of methods encapsulated by a
>Python class whose instances are wrapped by the Java proxies provided
>by PyLucene.
>----http://svn.nuxeo.org/pub/vendor/PyLucene/tags/1.9rc1-1/README """To me, it
>almost means that I can't simply extend Java class, in my own Python
>implementation, such as FunnyTokenizer(PyLucene.CharTokenizer). 2.Testcase
>Thanks to the link offered
>ashttp://svn.osafoundation.org/pylucene/trunk/samples/LuceneInAction/lia/analysis/keyword/SimpleKeywordAnalyzer.pyI
> try a testcase as follows:
>#-------------------tester.py------------------from PyLucene import
>StringReaderfrom PyLucene import CharTokenizer class
>SimpleKeywordAnalyzer(object): def tokenStream(self, fieldName, reader):
> class charTokenizer(object): def isTokenChar(self, c):
> return True
>
> return CharTokenizer(charTokenizer(), reader) if __name__ ==
> '__main__': ca = SimpleKeywordAnalyzer() strs = ca.tokenStream(' ',
> StringReader('bonne nuit Francais')) print 'Merci' for each in strs:
> print each.termText(),
> each.type()#-------------------------------------------------------------
> Simple as it is, however, it roughly didn't work out.Message:TrackBack:File
> 'tester.py', line 21, in <module> strs = ca.tokenStream(' ',
> StringReader('bonne nuit Francais'))File 'tester.py', line 16, in
> <module> return CharTokenizer(charTokenizer(),
> reader)NotImplementedError:('instantiating java class', <type
> 'PyLuceneCharTokenizer'>
> -----------------------------------------------BTW:Environment:Python
> 2.5.1,PyLucene 2.0.0-3,i686-pc-linux-gnuThread model: posixgcj-3.4.6
>-------------- next part --------------
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>
>------------------------------
>
>Message: 2
>Date: Sun, 26 Aug 2007 19:46:51 -0700 (PDT)
>From: Andi Vajda <[EMAIL PROTECTED]>
>Subject: Re: [pylucene-dev] Support or not: extension from a Java
> Lucene Implementation(Tokenizer or CharTokenizer)
>To: [email protected]
>Message-ID: <[EMAIL PROTECTED]>
>Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed
>
>
>
>On Mon, 27 Aug 2007, Liang Xing wrote:
>
>> 1.Quotas from PyLucene: """Technically, the PyLucene programmer is not
>providing an 'extension'
>> but a Python implementation of a set of methods encapsulated by a
>> Python class whose instances are wrapped by the Java proxies provided
>> by PyLucene.
>----http://svn.nuxeo.org/pub/vendor/PyLucene/tags/1.9rc1-1/README """To me, it
>almost means that I can't simply extend Java class, in my own Python
>implementation, such as FunnyTokenizer(PyLucene.CharTokenizer). 2.Testcase
>Thanks to the link offered
>ashttp://svn.osafoundation.org/pylucene/trunk/samples/LuceneInAction/lia/analysis/keyword/SimpleKeywordAnalyzer.pyI
> try a testcase as follows:
>#-------------------tester.py------------------from PyLucene import
>StringReaderfrom PyLucene import CharTokenizer class
>SimpleKeywordAnalyzer(object): def tokenStream(self, fieldName, reader):
> class charTokenizer(object): def isTokenChar(self, c):
>> return True
>>
>> return CharTokenizer(charTokenizer(), reader) if __name__ ==
>'__main__': ca = SimpleKeywordAnalyzer() strs = ca.tokenStream(' ',
>StringReader('bonne nuit Francais')) print 'Merci' for each in strs:
> print each.termText(),
>each.type()#-------------------------------------------------------------
>Simple as it is, however, it roughly didn't work out.Message:TrackBack:File
>'tester.py', line 21, in <module> strs = ca.tokenStream(' ',
>StringReader('bonne nuit Francais'))File 'tester.py', line 16, in
><module> return CharTokenizer(charTokenizer(),
>reader)NotImplementedError:('instantiating java class', <type
>'PyLuceneCharTokenizer'>
>-----------------------------------------------BTW:Environment:Python
>2.5.1,PyLucene 2.0.0-3,i686-pc-linux-gnuThread model: posixgcj-3.4.6
>
>It works fine for me. Please provide more information. What are version are
>you running ? What operating system ? etc...
>
> yuzu:vajda> python samples/LuceneInAction/KeywordAnalyzerTest.py
> ....
> ----------------------------------------------------------------------
> Ran 4 tests in 0.006s
>
> OK
>
>
>Andi..
>
>
>------------------------------
>
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