Michael Shipper
and 1 contributors

NAME

Data::Range::Compare::Stream::Iterator::Consolidate::FillMissing - Post Consolidation Iterator used to fill gaps

SYNOPSIS

  use Data::Range::Compare::Stream::Iterator::Consolidate;
  use Data::Range::Compare::Stream::Iterator::Array;
  use Data::Range::Compare::Stream;
  use Data::Range::Compare::Stream::Iterator::Consolidate::FillMissing;

  my $array=Data::Range::Compare::Stream::Iterator::Array->new;

  $array->create_range(0,0);
  $array->create_range(1,1);
  $array->create_range(3,4);
  $array->create_range(6,7);
  
  $array->set_sorted(1);

  my $con=Data::Range::Compare::Stream::Iterator::Consolidate->new($array);
  my $fill=new Data::Range::Compare::Stream::Iterator::Consolidate::FillMissing($con);

  while($fill->has_next) {
    my $result=$fill->get_next;
    my $missing=$result->is_missing ? ' Gap' : '';
    print $result,$missing,"\n";
  }

Resulting Output:

  Commoon Range: [0 - 0] Starting range: [0 - 0] Ending Range: [0 - 0]
  Commoon Range: [1 - 1] Starting range: [1 - 1] Ending Range: [1 - 1]
  Commoon Range: [2 - 2] Starting range: [2 - 2] Ending Range: [2 - 2] Gap
  Commoon Range: [3 - 4] Starting range: [3 - 4] Ending Range: [3 - 4]
  Commoon Range: [5 - 5] Starting range: [5 - 5] Ending Range: [5 - 5] Gap
  Commoon Range: [6 - 7] Starting range: [6 - 7] Ending Range: [6 - 7]

DESCRIPTION

This class Extends Data::Range::Compare::Stream::Iterator::Base. Any gaps in the input data set are filled in and marked as missing.

OO Methods

  • my $iterator=new Data::Range::Compare::Stream::Iterator::Consolidate::FillMissing($consolidator);

    Instance Constructor: $consolidator needs to be an object that implements or extends Data::Range::Compare::Stream::Iterator::Consolidate.

    Optional Arguments:

          factory_instance =>$obj
            
            # defines the object that implements the $obj->factory($start,$end,$data).
            # new ranges are constructed from the factory interfcae.  If a factory interface
            # is not created an instance of Data::Range::Compare::Stream is assumed.
  • my $class=$iterator->NEW_RESULT_FROM;

    $class will contain the name of the class new result objects will be constructed from. Default value is Data::Range::Compare::Stream::Iterator::Consolidate::Result.

  • while($iterator->has_next) { ... }

    Returns true when there are more rows to fetch.

  • my $result=$iterator->get_next;

    Returns the next Result object. $result->is_missing will be true if the range was not in that set of data.

SEE ALSO

Data::Range::Compare::Stream::Cookbook

AUTHOR

Michael Shipper

Source-Forge Project

As of version 0.001 the Project has been moved to Source-Forge.net

Data Range Compare https://sourceforge.net/projects/data-range-comp/

COPYRIGHT

Copyright 2011 Michael Shipper. All rights reserved.

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.