1Declare::Constraints::SUismeprleC:o:nLtirbirbauDrteyec:dl:aOPrOee(r:3l:)CDooncsutmreanitnattsi:o:nSimple::Library::OO(3)
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NAME

6       Declare::Constraints::Simple::Library::OO - OO Constraints
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SYNOPSIS

9         # accept objects or classes
10         my $object_or_class = Or( IsObject, IsClass );
11
12         # valid on objects with all methods
13         my $proper_object = And( IsObject,
14                                  HasMethods( qw(foo bar) ));
15
16         # validate against date objects
17         my $is_date_object = IsA('DateTime');
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DESCRIPTION

20       This library contains the constraints for validating parameters in an
21       object oriented manner.
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CONSTRAINTS

24       HasMethods(@methods)
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26       Returns true if the value is an object or class that "can" all the
27       specified @methods.
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29       The stack or path part of "HasMethods" looks like "HasMethods[$method]"
30       where $method is the first found missing method.
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32       IsA(@classes)
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34       Is true if the passed object or class is a subclass of one of the
35       classes mentioned in @classes.
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37       IsClass()
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39       Valid if value is a loaded class.
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41       IsObject()
42
43       True if the value is blessed.
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SEE ALSO

46       Declare::Constraints::Simple, Declare::Constraints::Simple::Library
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AUTHOR

49       Robert 'phaylon' Sedlacek "<phaylon@dunkelheit.at>"
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52       This module is free software, you can redistribute it and/or modify it
53       under the same terms as perl itself.
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57perl v5.8.8                       2D0e0c6l-a0r9e-:1:1Constraints::Simple::Library::OO(3)
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