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I am writing a simple object to represent an edge in a graph. As such the object has three scalar properties, from_node, to_node and label. I want to create three possible constructors:

Edge->new(); # all properties set to undef
Edge->new("from_node","to_node"); # label set to undef
Edge->new("from_node","to_node","label"); # all props set

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Can anyone show me how to do this? My present constructor code is below but handles only the first constructor prototype:

sub new()
{
  my $class = shift;
  my $self = {};
  $self->{'from_node'} = undef;
  $self->{'to_node'} = undef;
  $self->{'label'} = undef;
  bless $self, $class;
  return $self;
}

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____________
Arun

In reply to Multiple Prototypes for Object Constructor by arunhorne

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