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21 lines
1 KiB
Text
21 lines
1 KiB
Text
Roles are composable units of behavior. They are useful for factoring
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out functionality common to many classes from any part of your class
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hierarchy. See Moose::Cookbook::Roles::Recipe1 for an introduction to
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Moose::Role.
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While combining roles affords you a great deal of flexibility,
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individual roles have very little in the way of configurability. Core
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Moose provides alias for renaming methods and excludes for ignoring
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methods. These options are primarily (perhaps solely) for
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disambiguating role conflicts. See Moose::Cookbook::Roles::Recipe2 for
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more about alias and excludes.
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Because roles serve many different masters, they usually provide only
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the least common denominator of functionality. To empower roles
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further, more configurability than alias and excludes is required.
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Perhaps your role needs to know which method to call when it is done.
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Or what default value to use for its url attribute.
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Parameterized roles offer exactly this solution.
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WWW: https://metacpan.org/release/MooseX-Role-Parameterized
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