Passing value during Java object instantiation

["Charles A. Benson" <ca...@u.washington.edu>]

Hello,
From my PyLucene code, I want to pass in a value when I instantiate my StopAnalyzer. In particular, I want to instantiate w/a file containing a list of stop words.. Everything I have tried so far is either kicked back by Python or Java. Is there a way to instantiate a Java File object from within Python/PyLucene ? Is there a more general way to handle this ?
Thanks
Chuck

Re: Passing value during Java object instantiation

[Andi Vajda <va...@apache.org>]

Sent again with hopefully not mangled formatting:

On Wed, 18 Feb 2009, Charles A. Benson wrote:

> Hello,
>> From my PyLucene code, I want to pass in a value when I instantiate my 
>> StopAnalyzer. In particular, I want to instantiate w/a file containing a 
>> list of stop words.. Everything I have tried so far is either kicked back 
>> by Python or Java. Is there a way to instantiate a Java File object from 
>> within Python/PyLucene ? Is there a more general way to handle this ?

Yes, use the Java File class:

     >>> from lucene import *
     >>> initVM(CLASSPATH)
     <jcc.JCCEnv object at 0x293a0>
     >>> File
     <type 'File'>
     >>> a= StopAnalyzer(File("foo.txt"))
     >>> list(a.tokenStream("foo", StringReader("the foo is bar")))
     [<Token: (the,0,3)>, <Token: (is,8,10)>]
     >>> list(StopAnalyzer().tokenStream("foo", StringReader("the foo is bar")))
     [<Token: (foo,4,7)>, <Token: (bar,11,14)>]
     >>>

Andi..

ps: the foo.txt file in the example above contains:
foo
bar
baz

Re: Passing value during Java object instantiation

[Andi Vajda <va...@apache.org>]

On Wed, 18 Feb 2009, Charles A. Benson wrote:

> Hello,
>> From my PyLucene code, I want to pass in a value when I instantiate my 
>> StopAnalyzer. In particular, I want to instantiate w/a file containing a 
>> list of stop words.. Everything I have tried so far is either kicked back 
>> by Python or Java. Is there a way to instantiate a Java File object from 
>> within Python/PyLucene ? Is there a more general way to handle this ?

Yes, use the Java File class:

>>> from lucene import *
>>> initVM(CLASSPATH)
<jcc.JCCEnv object at 0x293a0>
>>> File
<type 'File'>
>>> a=StopAnalyzer(File("foo.txt"))
>>> list(a.tokenStream("foo", StringReader("the foo is bar")))
[<Token: (the,0,3)>, <Token: (is,8,10)>]
>>> list(StopAnalyzer().tokenStream("foo", StringReader("the foo is bar")))
[<Token: (foo,4,7)>, <Token: (bar,11,14)>]

Andi..

ps: the foo.txt in the example above contains:
foo
bar
baz