NAME

Data::Range::Compare::Stream::Iterator::Array - simple array iterator

SYNOPSIS

            

              
              
use Data::Range::Compare::Stream;
use Data::Range::Compare::Stream::Iterator::Array;
my $iterator=Data::Range::Compare::Stream::Iterator::Array->new(
  factory_instance=>'Data::Range::Compare::Stream',
);
# create a new range and add it to the iterator
$iterator->create_range(0,0);
my $range=Data::Range::Compare::Stream->new(0,1);
# add a new range from the existing one
$iterator->add_range($range);
$iterator->prepare_for_consolidate_asc;
while($iterator->has_next) {
  my $next_range=$iterator->get_next;
}
            
          

DESCRIPTION

This module implements Data::Range::Compare::Stream::Iterator::Base and provides an array iterator.

OO Methods

• my $iterator=new Data::Range::Compare::Stream::Iterator::Array;

  Instance Constructor, all arguments are optional:

  
              
  
                
                
       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.
       new_from   =>  'Data::Range::Compare::Stream'
           
  # depricated, but supported
  # Defines what class to call new against for $iterator->create_range(x,x,x)
       range_list =>  []
           
  # Defines the array reference used internally
       sorted     =>  0
         # Sets the sorted state
        autosort  =>  'prepare_for_consolidate_asc' or 'prepare_for_consolidate_desc'
            
   # Allows for dynamic sort support when has_next is called
              
            

• $iterator->add_range($obj)

  Adds $obj to the internal array. This function returns false once $iterator has been sorted

• $iterator->create_range(0,0);

  Creates a new range object and adds it to the internal array. This function returns false once $iterator has been sorted.

• $iterator->prepare_for_consolidate_asc;

  Sorts the internal array and sets the sorted flag $iterator->has_next returns false until the internal array has been sorted.

• $iterator->prepare_for_consolidate_desc;

  Sorts the internal array and sets the sorted flag: $iterator->has_next returns false until the internal array has been sorted.

• $iterator->set_sorted(0|1);

  Used to set the internal array sorted flag

• if($iterator->sorted) { ... }

  Returns the sorted state

• while($iterator->has_next) { ... }

  Returns true when the internal array has been sorted and still contains data. If autosrot has been set, then it will return true if the array contains data.

• my $range=$iterator->get_next;

  If $iterator->has_next returns true, then the next value from the internal array is returned

• my $string=$iterator->to_string;

  Returns the instance name of $iterator

• $iterator->insert_range($range);

  Inserts a range into a the iterator regardless of the "sorted" state. Use with caution!

• if($iterator->prepared) { ... }

  Returns the prepared state

• $iterator->prepare

  Prepares the object to be used for iteration.

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.