clucene-perl

[Clucene-perl] Questions about API compatibility with Document class

[Seth R. <set...@gm...>]

I'm looking at the source code for CLucene (0.9.20) and see that there
is a function that seems to be very handy when one doesn't know
exactly what type of documents one is dealing with (say if you want to
'explore' the index):

/** Returns an Enumeration of all the fields in a document. */
        DocumentFieldEnumeration* fields() const;

When I attempt to access that method via the following perl code

#file system store
my $store = Lucene::Store::FSDirectory->getDirectory("/home/me/lucene", 0);

my $reader = Lucene::Index::IndexReader->open($store);

# get number of docs in index
my $num_docs = $reader->numDocs();
print "Found $num_docs in the index\n";
# get the nth document
for (my $count = 0; $count < $num_docs ; $count++) {
    my $document = $reader->document($count);
    my $fields = $document->fields;
    print Dumper($fields);
}

I get this error:

Can't locate object method "fields" via package "Lucene::Document"

Am I doing something wrong here, or is this method just not accessible
via Lucene.pm?

Thanks,

Seth

Re: [Clucene-perl] Questions about API compatibility with Document class

[Seth R. <set...@gm...>]

Thanks for the advice. I thought perhaps there was some design
decision that either made that function inaccessible or uncessary.

Most of what I need I can get via Document->toString() and some regexs
- however, it would be more convenient and probably safer to implement
the fields method from CLucene.

Seth


On Mon, May 12, 2008 at 12:33 PM, Thomas Busch
<tho...@us...> wrote:
> Hi Seth,
>
>  I think this could be easily achieved by patching one of
>  the .xs files.
>
>  Thomas.
>
>
>
>  Quoting Seth Russell <set...@gm...>:
>
>
> >
> >
> >
> > I'm looking at the source code for CLucene (0.9.20) and see that there
> > is a function that seems to be very handy when one doesn't know
> > exactly what type of documents one is dealing with (say if you want to
> > 'explore' the index):
> >
> > /** Returns an Enumeration of all the fields in a document. */
> >        DocumentFieldEnumeration* fields() const;
> >
> > When I attempt to access that method via the following perl code
> >
> > #file system store
> > my $store = Lucene::Store::FSDirectory->getDirectory("/home/me/lucene",
> 0);
> >
> > my $reader = Lucene::Index::IndexReader->open($store);
> >
> > # get number of docs in index
> > my $num_docs = $reader->numDocs();
> > print "Found $num_docs in the index\n";
> > # get the nth document
> > for (my $count = 0; $count < $num_docs ; $count++) {
> >    my $document = $reader->document($count);
> >    my $fields = $document->fields;
> >    print Dumper($fields);
> > }
> >
> > I get this error:
> >
> > Can't locate object method "fields" via package "Lucene::Document"
> >
> > Am I doing something wrong here, or is this method just not accessible
> > via Lucene.pm?
> >
> > Thanks,
> >
> > Seth
> >
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