moosex::types::varianttable(3pm) [debian man page]

MooseX::Types::VariantTable(3pm)			User Contributed Perl Documentation			  MooseX::Types::VariantTable(3pm)

NAME

       MooseX::Types::VariantTable - Type constraint based variant table

SYNOPSIS

	   # see also MooseX::Types::VariantTable::Declare for a way to
	   # declare variant table based methods

	       use MooseX::Types::VariantTable;

	   my $dispatch_table = MooseX::Types::VariantTable->new(
	       variants => [
		   { type => "Foo", value => &foo_handler },
		   { type => "Bar", value => &bar_handler },
		   { type => "Item", value => &fallback },
	       ],
	   );

	   # look up the correct handler for $thingy based on the type constraints it passes
	   my $entry = $dispatch_table->find_variant($thingy);

	   # or use the 'dispatch' convenience method if the entries are code refs
	   $dispatch_table->dispatch( $thingy, @args );

DESCRIPTION

       This object implements a simple dispatch table based on Moose type constraints.

       Subtypes will be checked before their parents, meaning that the order of the declaration does not matter.

       This object is used internally by Moose::Meta::Method::VariantTable and MooseX::Types::VariantTable::Declare to provide primitive multi sub
       support.

ATTRIBUTES

   ambigious_match_callback
       A code reference that'll be executed when find_variant found more than one matching variant for a value. It defaults to something that
       simply croaks with an error message like this:

	 Ambiguous match %s

       where %s contains a list of stringified types that matched.

METHODS

       new
       add_variant $type, $value
	   Registers $type, such that $value will be returned by "find_variant" for items passing $type.

	   Subtyping is respected in the table.

       find_variant $value
	   Returns the registered value for the most specific type that $value passes.

       dispatch $value, @args
	   A convenience method for when the registered values are code references.

	   Calls "find_variant" and if the result is a code reference, it will "goto" this code reference with the value and any additional
	   arguments.

       has_type $type
	   Returns true if an entry for $type is registered.

       has_parent $type
	   Returns true if a parent type of $type is registered.

TODO

       The meta method composes in multiple inheritence but not yet with roles due to extensibility issues with the role application code.

       When Moose::Meta::Role can pluggably merge methods variant table methods can gain role composition.

AUTHOR

       Yuval Kogman <nothingmuch@woobling.org>

       Florian Ragwitz <rafl@debian.org>

COPYRIGHT

	       Copyright (c) 2008 Yuval Kogman. All rights reserved
	       This program is free software; you can redistribute
	       it and/or modify it under the same terms as Perl itself.

perl v5.10.1							    2011-02-27					  MooseX::Types::VariantTable(3pm)

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MooseX::Types::DateTime(3pm)				User Contributed Perl Documentation			      MooseX::Types::DateTime(3pm)

NAME

       MooseX::Types::DateTime - DateTime related constraints and coercions for Moose

VERSION

       version 0.10

SYNOPSIS

       Export Example:

	   use MooseX::Types::DateTime qw(TimeZone);

	   has time_zone => (
	       isa => TimeZone,
	       is => "rw",
	       coerce => 1,
	   );

	   Class->new( time_zone => "Africa/Timbuktu" );

       Namespaced Example:

	   use MooseX::Types::DateTime;

	   has time_zone => (
	       isa => 'DateTime::TimeZone',
	       is => "rw",
	       coerce => 1,
	   );

	   Class->new( time_zone => "Africa/Timbuktu" );

DESCRIPTION

       This module packages several Moose::Util::TypeConstraints with coercions, designed to work with the DateTime suite of objects.

CONSTRAINTS

       DateTime
	   A class type for DateTime.

	   from "Num"
	       Uses "from_epoch" in DateTime. Floating values will be used for sub-second precision, see DateTime for details.

	   from "HashRef"
	       Calls "new" in DateTime with the hash entries as arguments.

       Duration
	   A class type for DateTime::Duration

	   from "Num"
	       Uses "new" in DateTime::Duration and passes the number as the "seconds" argument.

	       Note that due to leap seconds, DST changes etc this may not do what you expect.	For instance passing in 86400 is not always
	       equivalent to one day, although there are that many seconds in a day. See "How Date Math is Done" in DateTime for more details.

	   from "HashRef"
	       Calls "new" in DateTime::Duration with the hash entries as arguments.

       DateTime::Locale
	   A class type for DateTime::Locale::root with the name DateTime::Locale.

	   from "Str"
	       The string is treated as a language tag (e.g. "en" or "he_IL") and given to "load" in DateTime::Locale.

	   from Locale::Maktext
	       The "Locale::Maketext/language_tag" attribute will be used with "load" in DateTime::Locale.

	   DateTime::TimeZone
	       A class type for DateTime::TimeZone.

	       from "Str"
		   Treated as a time zone name or offset. See "USAGE" in DateTime::TimeZone for more details on the allowed values.

		   Delegates to "new" in DateTime::TimeZone with the string as the "name" argument.

SEE ALSO

       MooseX::Types::DateTime::MoreCoercions

       DateTime, DateTimeX::Easy

AUTHOR

       Yuval Kogman <nothingmuch@woobling.org>

       John Napiorkowski <jjn1056 at yahoo.com>

COPYRIGHT

	   Copyright (c) 2008 Yuval Kogman. All rights reserved
	   This program is free software; you can redistribute
	   it and/or modify it under the same terms as Perl itself.

perl v5.18.2							    2014-02-03					      MooseX::Types::DateTime(3pm)

Linux and UNIX Man Pages

moosex::types::varianttable(3pm) [debian man page]

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