1Moose::Meta::TypeConstrUasienrt:C:oUnntiroinb(u3t)ed PerMlooDsoec:u:mMeenttaa:t:iToynpeConstraint::Union(3)
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NAME

6       Moose::Meta::TypeConstraint::Union - A union of Moose type constraints
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DESCRIPTION

9       This metaclass represents a union of type constraints. A union takes
10       multiple type constraints, and is true if any one of its member
11       constraints is true.
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INHERITANCE

14       "Moose::Meta::TypeConstraint::Union" is a subclass of
15       Moose::Meta::TypeConstraint.
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17       Moose::Meta::TypeConstraint::Union->new(%options)
18           This creates a new class type constraint based on the given
19           %options.
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21           It takes the same options as its parent. It also requires an
22           additional option, "type_constraints". This is an array reference
23           containing the Moose::Meta::TypeConstraint objects that are the
24           members of the union type. The "name" option defaults to the names
25           all of these member types sorted and then joined by a pipe (|).
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27           The constructor sets the implementation of the constraint so that
28           is simply calls "check" on the newly created object.
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30           Finally, the constructor also makes sure that the object's
31           "coercion" attribute is a Moose::Meta::TypeCoercion::Union object.
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33       $constraint->type_constraints
34           This returns the array reference of "type_constraints" provided to
35           the constructor.
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37       $constraint->parents
38           This returns the same constraint as the "type_constraints" method.
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40       $constraint->check($value)
41       $constraint->validate($value)
42           These two methods simply call the relevant method on each of the
43           member type constraints in the union. If any type accepts the
44           value, the value is valid.
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46           With "validate" the error message returned includes all of the
47           error messages returned by the member type constraints.
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49       $constraint->equals($type_name_or_object)
50           A type is considered equal if it is also a union type, and the two
51           unions have the same member types.
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53       $constraint->find_type_for($value)
54           This returns the first member type constraint for which
55           "check($value)" is true, allowing you to determine which of the
56           Union's member type constraints a given value matches.
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58       $constraint->is_a_type_of($type_name_or_object)
59           This returns true if any of the member type constraints return true
60           for the "is_a_type_of" method.
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62       $constraint->is_subtype_of
63           This returns true if any of the member type constraints return true
64           for the "is_a_subtype_of" method.
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66       $constraint->create_child_type(%options)
67           This returns a new Moose::Meta::TypeConstraint object with the type
68           as its parent.
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BUGS

71       See "BUGS" in Moose for details on reporting bugs.
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AUTHOR

74       Stevan Little <stevan@iinteractive.com>
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77       Copyright 2006-2010 by Infinity Interactive, Inc.
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79       <http://www.iinteractive.com>
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81       This library is free software; you can redistribute it and/or modify it
82       under the same terms as Perl itself.
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86perl v5.12.2                      2010-12-M0o1ose::Meta::TypeConstraint::Union(3)
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