NAME

REST::Neo4p::Constraint::RelationshipType - Neo4j Relationship Type Constraints

SYNOPSIS

# use REST::Neo4p::Constrain, it's nicer

$rtc = REST::Neo4p::Constraint::RelationshipType->new(
 'allowed_reln_types' =>
   { _condition => 'only', 
     _type_list => [qw(contains has)] }
 );

DESCRIPTION

REST::Neo4p::Constraint::RelationshipType is a class that represent the set of relationship types that Relationships must (or must not) use.

Constraint hash specification:

{ 
  _condition => <'only'|'none'>,
  _priority => <integer priority>,
  _type_list => [ 'type_name_1', 'type_name_2', ...]  }
}

METHODS

new()

$rt = REST::Neo4p::Constraint::RelationshipType->new(
        $tag => $constraint_hash
      );

add_constraint()

add_types()

$rc->add_constraint('new_type');
$rc->add_type('new_type');

remove_constraint()

remove_type()

$rc->remove_constraint('old_type');
$rc->remove_type('old_type');

tag()

Returns the constraint tag.

type()

Returns the constraint type ('relationship_type').

condition()

set_condition()

Get/set 'only' or 'none' for a given relationship constraint. See REST::Neo4p::Constrain.

priority()

set_priority()

Constraints with higher priority will be checked before constraints with lower priority by validate_relationship_type().

constraints()

Returns the internal constraint spec hashref.

validate()

$c->validate( 'avoids' );

Returns true if the item meets the constraint, false if not.

SEE ALSO

REST::Neo4p, REST::Neo4p::Node, REST::Neo4p::Relationship, REST::Neo4p::Constraint, REST::Neo4p::Constraint::Relationship, REST::Neo4p::Constraint::RelationshipType.

AUTHOR

Mark A. Jensen
CPAN ID: MAJENSEN
majensen -at- cpan -dot- org

LICENSE

Copyright (c) 2012-2022 Mark A. Jensen. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.