NAME

PNI::Set - is a set of elements

SYNOPSIS

    my $set = PNI::Set->new;

    my $elem1 = PNI::Elem->new;
    $set->add($elem1);

    my $elem2 = PNI::Elem->new;
    $set->add($elem2);

    $set->list;    # ($elem1,$elem2)

ATTRIBUTES

elem

Hash of elements contained in this PNI::Set.

min

Minimum number of elements: default is 0.

max

Maximum number of elements: default is 0, which means infinity otherwise it would be the empty set.

METHODS

add

    $set->add($elem);

Add a PNI::Elem to this PNI::Set.

del

    $set->del($elem);

Remove a PNI::Elem from this PNI::Set.

ids

    my @ids = $set->ids;

Return a list containing every id of this set elements.

list

    my @elems = $set->list;

    my $num_elems = scalar( $set->list );