MakeMethods::CompositeUser Contributed Perl DocumentaMakeMethods::Composite(3)NAMEClass::MakeMethods::Composite - Make extensible compound methods
SYNOPSIS
package MyObject;
use Class::MakeMethods::Composite::Hash (
new => 'new',
scalar => [ 'foo', 'bar' ],
array => 'my_list',
hash => 'my_index',
);
DESCRIPTION
This document describes the various subclasses of Class::MakeMethods
included under the Composite::* namespace, and the method types each
one provides.
The Composite subclasses provide a parameterized set of method-
generation implementations.
Subroutines are generated as closures bound to a hash containing the
method name and additional parameters, including the arrays of
subroutine references that will provide the method's functionality.
Calling Conventions
When you "use" this package, the method names you provide as arguments
cause subroutines to be generated and installed in your module.
See "Calling Conventions" in Class::MakeMethods::Standard for more
information.
Declaration Syntax
To declare methods, pass in pairs of a method-type name followed by one
or more method names.
Valid method-type names for this package are listed in "METHOD
GENERATOR TYPES".
See "Declaration Syntax" in Class::MakeMethods::Standard and "Parameter
Syntax" in Class::MakeMethods::Standard for more information.
About Composite Methods
The methods generated by Class::MakeMethods::Composite are assembled
from groups of "fragment" subroutines, each of which provides some
aspect of the method's behavior.
You can add pre- and post- operations to any composite method.
package MyObject;
use Class::MakeMethods::Composite::Hash (
new => 'new',
scalar => [
'foo' => {
'pre_rules' => [
sub {
# Don't automatically convert list to array-ref
croak "Too many arguments" if ( scalar @_ > 2 );
}
],
'post_rules' => [
sub {
# Don't let anyone see my credit card number!
${(pop)->{result}} =~ s/\d{13,16}/****/g;
}
],
}
],
);
SEE ALSO
See Class::MakeMethods for general information about this distribution.
For distribution, installation, support, copyright and license
information, see Class::MakeMethods::Docs::ReadMe.
perl v5.14.2 2004-09-06 MakeMethods::Composite(3)
