Ferret talk - Apr 2007 - IndexReader#terms for all fields?

Is it possible to query the index for a TermEnum for all fields in  
the index instead of just ?

Thanks,
John

On Apr 9, 2007, at 10:52 AM, John Bachir wrote:
> Is it possible to query the index for a TermEnum for all fields in
> the index instead of just ?
Err, I meant to write: "instead of just a single field"

On Apr 9, 2007, at 10:52 AM, John Bachir wrote:
> Is it possible to query the index for a TermEnum for all fields in
> the index instead of just a single field?
Anyone have any experience with this? Judging from past discussion on  
this list it seems like IndexReader#terms doesn''t get used very much.

John

On 4/11/07, John Bachir <john at digitalpulp.com>
wrote:
>
> On Apr 9, 2007, at 10:52 AM, John Bachir wrote:
>
> > Is it possible to query the index for a TermEnum for all fields in
> > the index instead of just a single field?
>
> Anyone have any experience with this? Judging from past discussion on
> this list it seems like IndexReader#terms doesn''t get used very
much.
Here is an example looping over all the terms in an index;

    require ''rubygems''
    require ''ferret''

    def print_all_terms(index)
      index.field_infos.each do |field_info|
        field = field_info.name
        index.reader.terms(field).each {|term, freq| puts
"#{field}:#{term}"}
      end
    end

    index = Ferret::I.new
    [
      {:one => ''one'', :two => ''one two
three''},
      {:three => ''some knew terms'', :four =>
''the fourth field''}
    ].each {|doc| index << doc}

    print_all_terms(index)

Hope that helps.

Dave

-- 
Dave Balmain
http://www.davebalmain.com/

On Apr 12, 2007, at 9:25 AM, David Balmain wrote:
>     def print_all_terms(index)
>       index.field_infos.each do |field_info|
>         field = field_info.name
>         index.reader.terms(field).each {|term, freq| puts "# 
> {field}:#{term}"}
>       end
>     end
David-- thanks, this example is very helpful, but one strange  
problem: it seems that FieldInfo does not have a ''name''
method, and
as far as I can tell there is no way to access the name of the field  
represented. What am I missing?

Thanks,
John

On Apr 13, 2007, at 11:02 AM, John Bachir wrote:
> one strange problem: it seems that FieldInfo does not have a
''name''
> method, and
> as far as I can tell there is no way to access the name of the field
> represented. What am I missing?
I just upgraded to the newest ferret, and now .name works.

Thanks (again),
John