NAME

Lucy::Index::PostingListReader - Read postings data.

SYNOPSIS

            

              
              
my $posting_list_reader 
    = $seg_reader->obtain("Lucy::Index::PostingListReader");
my $posting_list = $posting_list_reader->posting_list(
    field => 'title', 
    term  => 'foo',
);
            
          

DESCRIPTION

PostingListReaders produce PostingList objects which convey document matching information.

ABSTRACT METHODS

posting_list

            

              
              
my $posting_list = $posting_list_reader->posting_list(
    field => $field,  # default: undef
    term  => $term,   # default: undef
);
            
          

Returns a PostingList, or undef if either field is undef or field is not present in any documents.

• field - A field name.

• term - If supplied, the PostingList will be pre-located to this term using seek().

METHODS

aggregator

            

              
              
my $result = $posting_list_reader->aggregator(
    readers => $readers,  # required
    offsets => $offsets,  # required
);
            
          

Returns undef since PostingLists may only be iterated at the segment level.

INHERITANCE

Lucy::Index::PostingListReader isa Lucy::Index::DataReader isa Clownfish::Obj.