# -*- perl -*-
# DO NOT EDIT - This file is generated by UMMF; http://ummf.sourceforge.net 
# From template: $Id: Perl.txt,v 1.77 2006/05/14 01:40:03 kstephens Exp $

package UMMF::MOF_1_3::Model::AssociationEnd;

#use 5.6.1;
use strict;
use warnings;

#################################################################
# Version
#

our $VERSION = do { my @r = (q{1.3} =~ /\d+/g); sprintf "%d." . "%03d" x $#r, @r };


#################################################################
# Documentation
#

=head1 NAME

UMMF::MOF_1_3::Model::AssociationEnd -- 

=head1 VERSION

1.3

=head1 SYNOPSIS

=head1 DESCRIPTION 

=head1 USAGE

=head1 EXPORT

=head1 METATYPE

L<UMMF::UML_1_5::Foundation::Core::Class|UMMF::UML_1_5::Foundation::Core::Class>

=head1 SUPERCLASSES

L<UMMF::MOF_1_3::Model::TypedElement|UMMF::MOF_1_3::Model::TypedElement>




=head1 ATTRIBUTES


=head2 C<isNavigable> : UMMF::MOF_1_3::Model::Boolean 


=over 4

=item metatype = L<UMMF::UML_1_5::Foundation::Core::Attribute|UMMF::UML_1_5::Foundation::Core::Attribute>

=item type = L<UMMF::MOF_1_3::Model::Boolean|UMMF::MOF_1_3::Model::Boolean>

=item visibility = C<private>

=item multiplicity = C<1>

=item changeability = C<changeable>

=item targetScope = C<instance>

=item ordering = C<unordered>

=item initialValue = I<UNSPECIFIED>

=item container_type = C<Set::Object>

=back


=head2 C<aggregation> : UMMF::MOF_1_3::Model::AggregationKind 


=over 4

=item metatype = L<UMMF::UML_1_5::Foundation::Core::Attribute|UMMF::UML_1_5::Foundation::Core::Attribute>

=item type = L<UMMF::MOF_1_3::Model::AggregationKind|UMMF::MOF_1_3::Model::AggregationKind>

=item visibility = C<private>

=item multiplicity = C<1>

=item changeability = C<changeable>

=item targetScope = C<instance>

=item ordering = C<unordered>

=item initialValue = I<UNSPECIFIED>

=item container_type = C<Set::Object>

=back


=head2 C<multiplicity> : UMMF::MOF_1_3::Model::MultiplicityType 


=over 4

=item metatype = L<UMMF::UML_1_5::Foundation::Core::Attribute|UMMF::UML_1_5::Foundation::Core::Attribute>

=item type = L<UMMF::MOF_1_3::Model::MultiplicityType|UMMF::MOF_1_3::Model::MultiplicityType>

=item visibility = C<private>

=item multiplicity = C<1>

=item changeability = C<changeable>

=item targetScope = C<instance>

=item ordering = C<unordered>

=item initialValue = I<UNSPECIFIED>

=item container_type = C<Set::Object>

=back


=head2 C<isChangeable> : UMMF::MOF_1_3::Model::Boolean 


=over 4

=item metatype = L<UMMF::UML_1_5::Foundation::Core::Attribute|UMMF::UML_1_5::Foundation::Core::Attribute>

=item type = L<UMMF::MOF_1_3::Model::Boolean|UMMF::MOF_1_3::Model::Boolean>

=item visibility = C<private>

=item multiplicity = C<1>

=item changeability = C<changeable>

=item targetScope = C<instance>

=item ordering = C<unordered>

=item initialValue = I<UNSPECIFIED>

=item container_type = C<Set::Object>

=back



=head1 ASSOCIATIONS


=head2 C<referencedEnd> : I<THIS> C<1> E<lt>---E<gt>  C<referent> : UMMF::MOF_1_3::Model::Reference C<0..*>



=over 4

=item metatype = L<UMMF::UML_1_5::Foundation::Core::AssociationEnd|UMMF::UML_1_5::Foundation::Core::AssociationEnd>

=item type = L<UMMF::MOF_1_3::Model::Reference|UMMF::MOF_1_3::Model::Reference>

=item multiplicity = C<0..*>

=item changeability = C<changeable>

=item targetScope = C<instance>

=item ordering = C<>

=item isNavigable = C<1>

=item aggregation = C<none>

=item visibility = C<public>

=item container_type = C<Set::Object>

=back


=head2 C<exposedEnd> : I<THIS> C<1> E<lt>---E<gt>  C<referrer> : UMMF::MOF_1_3::Model::Reference C<0..*>



=over 4

=item metatype = L<UMMF::UML_1_5::Foundation::Core::AssociationEnd|UMMF::UML_1_5::Foundation::Core::AssociationEnd>

=item type = L<UMMF::MOF_1_3::Model::Reference|UMMF::MOF_1_3::Model::Reference>

=item multiplicity = C<0..*>

=item changeability = C<changeable>

=item targetScope = C<instance>

=item ordering = C<>

=item isNavigable = C<1>

=item aggregation = C<none>

=item visibility = C<public>

=item container_type = C<Set::Object>

=back



=head1 METHODS

=cut



#################################################################
# Dependencies
#





use Carp qw(croak confess);
use Set::Object 1.05;
use Class::Multimethods 1.70;
use Data::Dumper;
use Scalar::Util qw(weaken);
use UMMF::MOF_1_3::__ObjectBase qw(:__ummf_array);


#################################################################
# Generalizations
#

use base qw(
  UMMF::MOF_1_3::Model::TypedElement



);


#################################################################
# Exports
#

our @EXPORT_OK = qw(
);
our %EXPORT_TAGS = ( 'all' => \@EXPORT_OK );





#################################################################
# Validation
#


=head2 C<__validate_type>

  UMMF::MOF_1_3::Model::AssociationEnd->__validate_type($value);

Returns true if C<$value> is a valid representation of L<UMMF::MOF_1_3::Model::AssociationEnd|UMMF::MOF_1_3::Model::AssociationEnd>.

=cut
sub __validate_type($$)
{
  my ($self, $x) = @_;

  no warnings;

  UNIVERSAL::isa($x, 'UMMF::MOF_1_3::Model::AssociationEnd')  ;
}


=head2 C<__typecheck>

  UMMF::MOF_1_3::Model::AssociationEnd->__typecheck($value, $msg);

Calls C<confess()> with C<$msg> if C<<UMMF::MOF_1_3::Model::AssociationEnd->__validate_type($value)>> is false.

=cut
sub __typecheck
{
  my ($self, $x, $msg) = @_;

  confess("typecheck: $msg: type '" . 'UMMF::MOF_1_3::Model::AssociationEnd' . ": value '$x'")
    unless __validate_type($self, $x);
}


=head2 C<isaAssociationEnd>


Returns true if receiver is a L<UMMF::MOF_1_3::Model::AssociationEnd|UMMF::MOF_1_3::Model::AssociationEnd>.
Other receivers will return false.

=cut
sub isaAssociationEnd { 1 }


=head2 C<isaModel__AssociationEnd>


Returns true if receiver is a L<UMMF::MOF_1_3::Model::AssociationEnd|UMMF::MOF_1_3::Model::AssociationEnd>.
Other receivers will return false.
This is the fully qualified version of the C<isaAssociationEnd> method.

=cut
sub isaModel__AssociationEnd { 1 }


#################################################################
# Introspection
#

=head2 C<__model_name> 

  my $name = $obj_or_package->__model_name;

Returns the UML Model name (C<'Model::AssociationEnd'>) for an object or package of
this Classifier.

=cut
sub __model_name { 'Model::AssociationEnd' }



=head2 C<__isAbstract>

  $package->__isAbstract;

Returns C<0>.

=cut
sub __isAbstract { 0; }


my $__tangram_schema;
=head2 C<__tangram_schema>

  my $tangram_schema $obj_or_package->__tangram_schema

Returns a HASH ref that describes this Classifier for Tangram.

See L<UMMF::Export::Perl::Tangram|UMMF::Export::Perl::Tangram>

=cut
sub __tangram_schema
{
  my ($self) = @_;

  $__tangram_schema ||=
  {
   'classes' =>
   [
     'UMMF::MOF_1_3::Model::AssociationEnd' =>
     {
       'table' => 'Model__AssociationEnd',
       'abstract' => 0,
       'slots' => 
       { 
	 # Attributes
	 	       'isNavigable'
       => {
	 'type_impl' => 'string',
                                             'col' => 'isNavigable', 

                                                                                                                   }
      ,
         	       'aggregation'
       => {
	 'type_impl' => 'string',
                                             'col' => 'aggregation', 

                                                                                                                   }
      ,
         	       'multiplicity'
       => {
	 'type_impl' => 'ref',
         'class' => 'UMMF::MOF_1_3::Model::MultiplicityType',

                                             'col' => 'multiplicity', 

                                                                                                                   }
      ,
         	       'isChangeable'
       => {
	 'type_impl' => 'string',
                                             'col' => 'isChangeable', 

                                                                                                                   }
      ,
         
	 # Associations
	 	 	       'referent'
       => {
	 'type_impl' => 'iset',
         'class' => 'UMMF::MOF_1_3::Model::Reference',

                           'table' => 'Model__AssociationEnd__referent', 

                                                               'coll' => 'referencedEnd',

                                                                               }
      ,
                  	 	       'referrer'
       => {
	 'type_impl' => 'iset',
         'class' => 'UMMF::MOF_1_3::Model::Reference',

                           'table' => 'Model__AssociationEnd__referrer', 

                                                               'coll' => 'exposedEnd',

                                                                               }
      ,
                         },
       'bases' => [  'UMMF::MOF_1_3::Model::TypedElement',  ],
       'sql' => {

       },
     },
   ],

   'sql' =>
   {
    # Note Tangram::Ref::get_exporter() has
    # "UPDATE $table SET $self->{col} = $refid WHERE id = $id",
    # The id_col is hard-coded, 
    # Thus id_col will not work.
    #'id_col' => '__sid',
    #'class_col' => '__stype',
   },
     # 'set_id' => sub { }
     # 'get_id' => sub { }

      
  };
}


#################################################################
# Class Attributes
#


            

#################################################################
# Class Associations
#


    

#################################################################
# Initialization
#


=head2 C<___initialize>

Initialize all Attributes and AssociationEnds in a instance of this Classifier.
Does B<not> initalize slots in its Generalizations.

See also: C<__initialize>.

=cut
sub ___initialize
{
  my ($self) = @_;

  # Attributes

    # Attribute isNavigable
  if ( exists $self->{'isNavigable'} ) {
    my $x = $self->{'isNavigable'};
    $self->{'isNavigable'} = undef;
        $self->set_isNavigable($x);
      } else {
      }
  
    # Attribute aggregation
  if ( exists $self->{'aggregation'} ) {
    my $x = $self->{'aggregation'};
    $self->{'aggregation'} = undef;
        $self->set_aggregation($x);
      } else {
      }
  
    # Attribute multiplicity
  if ( exists $self->{'multiplicity'} ) {
    my $x = $self->{'multiplicity'};
    $self->{'multiplicity'} = undef;
        $self->set_multiplicity($x);
      } else {
      }
  
    # Attribute isChangeable
  if ( exists $self->{'isChangeable'} ) {
    my $x = $self->{'isChangeable'};
    $self->{'isChangeable'} = undef;
        $self->set_isChangeable($x);
      } else {
      }
  


  # Associations

  # AssociationEnd 
  #  referencedEnd 1
  #  <--> 
  #  referent 0..* UMMF::MOF_1_3::Model::Reference.
    if ( defined $self->{'referent'} ) {
    my $x = $self->{'referent'};
        $self->{'referent'} = Set::Object->new();
        $self->set_referent(@$x);
  }
  
  # AssociationEnd 
  #  exposedEnd 1
  #  <--> 
  #  referrer 0..* UMMF::MOF_1_3::Model::Reference.
    if ( defined $self->{'referrer'} ) {
    my $x = $self->{'referrer'};
        $self->{'referrer'} = Set::Object->new();
        $self->set_referrer(@$x);
  }
  

  $self;
}


my $__initialize_use;

=head2 C<__initialize>

Initialize all slots in this Classifier and all its Generalizations.

See also: C<___initialize>.

=cut
sub __initialize
{
  my ($self) = @_;

  # $DB::single = 1;

  unless ( ! $__initialize_use ) {
    $__initialize_use = 1;
    $self->__use('UMMF::MOF_1_3::Model::ModelElement');
    $self->__use('UMMF::MOF_1_3::Model::TypedElement');
  }

  $self->UMMF::MOF_1_3::Model::AssociationEnd::___initialize;
  $self->UMMF::MOF_1_3::Model::ModelElement::___initialize;
  $self->UMMF::MOF_1_3::Model::TypedElement::___initialize;

  $self;
}
      

=head2 C<__create>

Calls all <<create>> Methods for this Classifier and all Generalizations.

See also: C<___create>.

=cut
sub __create
{
  my ($self, @args) = @_;

  # $DB::single = 1;
  $self->UMMF::MOF_1_3::Model::AssociationEnd::___create(@args);
  $self->UMMF::MOF_1_3::Model::ModelElement::___create();
  $self->UMMF::MOF_1_3::Model::TypedElement::___create();

  $self;
}




#################################################################
# Attributes
#



=for html <hr/>

=cut

#################################################################
# Attribute isNavigable
# type = UMMF::MOF_1_3::Model::Boolean
# multiplicity = 1
# ordering = unordered
# ownerScope = instance
# initialValue = 

=head2 C<isNavigable>

  my $val = $obj->isNavigable;

Returns the L<UMMF::MOF_1_3::Model::Boolean|UMMF::MOF_1_3::Model::Boolean> value of Attribute C<isNavigable>.

=cut
sub isNavigable ($)
{
  my ($self) = @_;

  ;

  my $val = $self->{'isNavigable'};

  ;

  $val;
}


=head2 C<set_isNavigable>

  $obj->set_isNavigable($val);

Sets the value of Attribute C<isNavigable>.
C<$val> must be of type L<UMMF::MOF_1_3::Model::Boolean|UMMF::MOF_1_3::Model::Boolean> or C<undef>.
Returns C<$obj>.

=cut
sub set_isNavigable ($$)
{
  my ($self, $val) = @_;

  ;

  if ( defined $val ) {
    ;
  }

    $self->{'isNavigable'} = $val
  ;

  ;

  $self;
}


=head2 C<count_isNavigable>

  $obj->count_isNavigable;

Returns the number of elements (0 or 1) in C<isNavigable>.

=cut
sub count_isNavigable ($)
{
  my ($self) = @_;

  ;

  my $val = $self->{'isNavigable'};

  ;

  defined $val ? 1 : 0;
}



=for html <hr/>

=cut

#################################################################
# Attribute aggregation
# type = UMMF::MOF_1_3::Model::AggregationKind
# multiplicity = 1
# ordering = unordered
# ownerScope = instance
# initialValue = 

=head2 C<aggregation>

  my $val = $obj->aggregation;

Returns the L<UMMF::MOF_1_3::Model::AggregationKind|UMMF::MOF_1_3::Model::AggregationKind> value of Attribute C<aggregation>.

=cut
sub aggregation ($)
{
  my ($self) = @_;

  ;

  my $val = $self->{'aggregation'};

  ;

  $val;
}


=head2 C<set_aggregation>

  $obj->set_aggregation($val);

Sets the value of Attribute C<aggregation>.
C<$val> must be of type L<UMMF::MOF_1_3::Model::AggregationKind|UMMF::MOF_1_3::Model::AggregationKind> or C<undef>.
Returns C<$obj>.

=cut
sub set_aggregation ($$)
{
  my ($self, $val) = @_;

  ;

  if ( defined $val ) {
    $self->__use('UMMF::MOF_1_3::Model::AggregationKind')->__typecheck($val, "UMMF::MOF_1_3::Model::AssociationEnd.aggregation");
  }

    $self->{'aggregation'} = $val
  ;

  ;

  $self;
}


=head2 C<count_aggregation>

  $obj->count_aggregation;

Returns the number of elements (0 or 1) in C<aggregation>.

=cut
sub count_aggregation ($)
{
  my ($self) = @_;

  ;

  my $val = $self->{'aggregation'};

  ;

  defined $val ? 1 : 0;
}



=for html <hr/>

=cut

#################################################################
# Attribute multiplicity
# type = UMMF::MOF_1_3::Model::MultiplicityType
# multiplicity = 1
# ordering = unordered
# ownerScope = instance
# initialValue = 

=head2 C<multiplicity>

  my $val = $obj->multiplicity;

Returns the L<UMMF::MOF_1_3::Model::MultiplicityType|UMMF::MOF_1_3::Model::MultiplicityType> value of Attribute C<multiplicity>.

=cut
sub multiplicity ($)
{
  my ($self) = @_;

  ;

  my $val = $self->{'multiplicity'};

  ;

  $val;
}


=head2 C<set_multiplicity>

  $obj->set_multiplicity($val);

Sets the value of Attribute C<multiplicity>.
C<$val> must be of type L<UMMF::MOF_1_3::Model::MultiplicityType|UMMF::MOF_1_3::Model::MultiplicityType> or C<undef>.
Returns C<$obj>.

=cut
sub set_multiplicity ($$)
{
  my ($self, $val) = @_;

  ;

  if ( defined $val ) {
    $self->__use('UMMF::MOF_1_3::Model::MultiplicityType')->__typecheck($val, "UMMF::MOF_1_3::Model::AssociationEnd.multiplicity");
  }

    $self->{'multiplicity'} = $val
  ;

  ;

  $self;
}


=head2 C<count_multiplicity>

  $obj->count_multiplicity;

Returns the number of elements (0 or 1) in C<multiplicity>.

=cut
sub count_multiplicity ($)
{
  my ($self) = @_;

  ;

  my $val = $self->{'multiplicity'};

  ;

  defined $val ? 1 : 0;
}



=for html <hr/>

=cut

#################################################################
# Attribute isChangeable
# type = UMMF::MOF_1_3::Model::Boolean
# multiplicity = 1
# ordering = unordered
# ownerScope = instance
# initialValue = 

=head2 C<isChangeable>

  my $val = $obj->isChangeable;

Returns the L<UMMF::MOF_1_3::Model::Boolean|UMMF::MOF_1_3::Model::Boolean> value of Attribute C<isChangeable>.

=cut
sub isChangeable ($)
{
  my ($self) = @_;

  ;

  my $val = $self->{'isChangeable'};

  ;

  $val;
}


=head2 C<set_isChangeable>

  $obj->set_isChangeable($val);

Sets the value of Attribute C<isChangeable>.
C<$val> must be of type L<UMMF::MOF_1_3::Model::Boolean|UMMF::MOF_1_3::Model::Boolean> or C<undef>.
Returns C<$obj>.

=cut
sub set_isChangeable ($$)
{
  my ($self, $val) = @_;

  ;

  if ( defined $val ) {
    ;
  }

    $self->{'isChangeable'} = $val
  ;

  ;

  $self;
}


=head2 C<count_isChangeable>

  $obj->count_isChangeable;

Returns the number of elements (0 or 1) in C<isChangeable>.

=cut
sub count_isChangeable ($)
{
  my ($self) = @_;

  ;

  my $val = $self->{'isChangeable'};

  ;

  defined $val ? 1 : 0;
}




#################################################################
# Association
#


=for html <hr/>

=cut

#################################################################
# AssociationEnd referencedEnd <---> referent
# type = UMMF::MOF_1_3::Model::Reference
# multiplicity = 0..*
# ordering = 

=head2 C<referent>

  my @val = $obj->referent;
  my $ary_val = $obj->referent;

Returns the AssociationEnd C<referent> values of type L<UMMF::MOF_1_3::Model::Reference|UMMF::MOF_1_3::Model::Reference>.
In array context, returns all the objects in the Association.
In scalar context, returns an array ref of all the objects in the Association.

=cut
sub referent ($)
{
  my ($self) = @_;

    my $x = $self->{'referent'};

  # confess("Container for referent $x is not a blessed ref: " . Data::Dumper->new([ $self ], [qw($self)])->Maxdepth(2)->Dump()) if $x && ref($x) !~ /::/;
 
  wantarray ? ($x ? $x->members() : ()) : [ $x ? $x->members() : () ];
  
}


=head2 C<set_referent>

  $obj->set_referent(@val);

Sets the AssociationEnd C<referent> value.
Elements of C<@val> must of type L<UMMF::MOF_1_3::Model::Reference|UMMF::MOF_1_3::Model::Reference>.
Returns C<$obj>.

=cut
sub set_referent ($@)
{
  my ($self, @val) = @_;
  
  $self->clear_referent;
  $self->add_referent(@val);
}


=head2 C<add_referent>

  $obj->add_referent(@val);

Adds AssociationEnd C<referent> values.
Elements of C<@val> must of type L<UMMF::MOF_1_3::Model::Reference|UMMF::MOF_1_3::Model::Reference>.
Returns C<$obj>.

=cut
sub add_referent ($@)
{
  my ($self, @val) = @_;
  
    my $x = $self->{'referent'} ||= Set::Object->new();
    my $old; # Place holder for other MACRO.
  
  for my $val ( @val ) {
    # Recursion lock
        next if $x->includes($val);
        $self->__use('UMMF::MOF_1_3::Model::Reference')->__typecheck($val, "UMMF::MOF_1_3::Model::AssociationEnd.referent");

    # Recursion lock
        $x->insert($val);
    # weaken?
    
    # Remove and add associations with other ends.
        
    $old->remove_referencedEnd($self) if $old;
    $val->add_referencedEnd($self)    if $val;

    }
  
  $self;
}


=head2 C<remove_referent>

  $obj->remove_referent(@val);

Removes the AssociationEnd C<referent> values C<@val>.
Elements of C<@val> must of type L<UMMF::MOF_1_3::Model::Reference|UMMF::MOF_1_3::Model::Reference>.
Returns C<$obj>.

=cut
sub remove_referent ($@)
{
  my ($self, @val) = @_;
  
    my $x = $self->{'referent'} ||= Set::Object->new();
  
  for my $old ( @val ) {
    # Recursion lock
        next unless $x->includes($old);
    
    my $val = $old;
      
    $self->__use('UMMF::MOF_1_3::Model::Reference')->__typecheck($val, "UMMF::MOF_1_3::Model::AssociationEnd.referent");

    # Recursion lock
        $x->remove($old);
    
    $val = undef;

    # Remove associations with other ends.

        
    $old->remove_referencedEnd($self) if $old;
    $val->add_referencedEnd($self)    if $val;

  ;

  }
  
  $self;
}


=head2 C<clear_referent>

  $obj->clear_referent;

Clears the AssociationEnd C<referent> links to L<UMMF::MOF_1_3::Model::Reference|UMMF::MOF_1_3::Model::Reference>.
Returns C<$obj>.

=cut
sub clear_referent ($) 
{
  my ($self) = @_;
  
    my $x = $self->{'referent'} ||= Set::Object->new();
  
  my $val; # Place holder for other MACRO.
  
    $self->{'referent'} = Set::Object->new(); # Recursion lock
  for my $old ( $x->members() ) {     # Recursion lock
  
    # Remove associations with other ends.

        
    $old->remove_referencedEnd($self) if $old;
    $val->add_referencedEnd($self)    if $val;

  ;

  }
  
  $self;
}


=head2 C<count_referent>

  $obj->count_referent;

Returns the number of elements associated with C<referent>.

=cut
sub count_referent ($)
{
  my ($self) = @_;

  my $x = $self->{'referent'};

    defined $x ? $x->size : 0;
  }




=for html <hr/>

=cut

#################################################################
# AssociationEnd exposedEnd <---> referrer
# type = UMMF::MOF_1_3::Model::Reference
# multiplicity = 0..*
# ordering = 

=head2 C<referrer>

  my @val = $obj->referrer;
  my $ary_val = $obj->referrer;

Returns the AssociationEnd C<referrer> values of type L<UMMF::MOF_1_3::Model::Reference|UMMF::MOF_1_3::Model::Reference>.
In array context, returns all the objects in the Association.
In scalar context, returns an array ref of all the objects in the Association.

=cut
sub referrer ($)
{
  my ($self) = @_;

    my $x = $self->{'referrer'};

  # confess("Container for referrer $x is not a blessed ref: " . Data::Dumper->new([ $self ], [qw($self)])->Maxdepth(2)->Dump()) if $x && ref($x) !~ /::/;
 
  wantarray ? ($x ? $x->members() : ()) : [ $x ? $x->members() : () ];
  
}


=head2 C<set_referrer>

  $obj->set_referrer(@val);

Sets the AssociationEnd C<referrer> value.
Elements of C<@val> must of type L<UMMF::MOF_1_3::Model::Reference|UMMF::MOF_1_3::Model::Reference>.
Returns C<$obj>.

=cut
sub set_referrer ($@)
{
  my ($self, @val) = @_;
  
  $self->clear_referrer;
  $self->add_referrer(@val);
}


=head2 C<add_referrer>

  $obj->add_referrer(@val);

Adds AssociationEnd C<referrer> values.
Elements of C<@val> must of type L<UMMF::MOF_1_3::Model::Reference|UMMF::MOF_1_3::Model::Reference>.
Returns C<$obj>.

=cut
sub add_referrer ($@)
{
  my ($self, @val) = @_;
  
    my $x = $self->{'referrer'} ||= Set::Object->new();
    my $old; # Place holder for other MACRO.
  
  for my $val ( @val ) {
    # Recursion lock
        next if $x->includes($val);
        $self->__use('UMMF::MOF_1_3::Model::Reference')->__typecheck($val, "UMMF::MOF_1_3::Model::AssociationEnd.referrer");

    # Recursion lock
        $x->insert($val);
    # weaken?
    
    # Remove and add associations with other ends.
        
    $old->remove_exposedEnd($self) if $old;
    $val->add_exposedEnd($self)    if $val;

    }
  
  $self;
}


=head2 C<remove_referrer>

  $obj->remove_referrer(@val);

Removes the AssociationEnd C<referrer> values C<@val>.
Elements of C<@val> must of type L<UMMF::MOF_1_3::Model::Reference|UMMF::MOF_1_3::Model::Reference>.
Returns C<$obj>.

=cut
sub remove_referrer ($@)
{
  my ($self, @val) = @_;
  
    my $x = $self->{'referrer'} ||= Set::Object->new();
  
  for my $old ( @val ) {
    # Recursion lock
        next unless $x->includes($old);
    
    my $val = $old;
      
    $self->__use('UMMF::MOF_1_3::Model::Reference')->__typecheck($val, "UMMF::MOF_1_3::Model::AssociationEnd.referrer");

    # Recursion lock
        $x->remove($old);
    
    $val = undef;

    # Remove associations with other ends.

        
    $old->remove_exposedEnd($self) if $old;
    $val->add_exposedEnd($self)    if $val;

  ;

  }
  
  $self;
}


=head2 C<clear_referrer>

  $obj->clear_referrer;

Clears the AssociationEnd C<referrer> links to L<UMMF::MOF_1_3::Model::Reference|UMMF::MOF_1_3::Model::Reference>.
Returns C<$obj>.

=cut
sub clear_referrer ($) 
{
  my ($self) = @_;
  
    my $x = $self->{'referrer'} ||= Set::Object->new();
  
  my $val; # Place holder for other MACRO.
  
    $self->{'referrer'} = Set::Object->new(); # Recursion lock
  for my $old ( $x->members() ) {     # Recursion lock
  
    # Remove associations with other ends.

        
    $old->remove_exposedEnd($self) if $old;
    $val->add_exposedEnd($self)    if $val;

  ;

  }
  
  $self;
}


=head2 C<count_referrer>

  $obj->count_referrer;

Returns the number of elements associated with C<referrer>.

=cut
sub count_referrer ($)
{
  my ($self) = @_;

  my $x = $self->{'referrer'};

    defined $x ? $x->size : 0;
  }







# End of Class AssociationEnd


=pod

=for html <hr/>

I<END OF DOCUMENT>

=cut

############################################################################

1; # is true!

############################################################################

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