NAME

Class::new - Pragma to implement constructor methods

VERSION 1.2

Included in OOTools 1.2 distribution. The distribution includes:

  • Class::new

    Pragma to implement constructor methods

  • Class::props

    Pragma to implement lvalue accessors with options

  • Object::props

    Pragma to implement lvalue accessors with options

SYNOPSIS

Class

package MyClass ;

# implement constructor without options
use Class::new ;

# with options
use Class::new  name  => 'new_object'
                init  => [ qw( init1 init2 ) ] ;
                
# init1 and init2 will be called at run-time

Usage

# creates a new object and eventually validates
# the properties if any validation property option is set
my $object = MyClass->new(digits => '123');
                             

DESCRIPTION

This pragma easily implements lvalue constructor methods for your class. Use it with Class::props and Object::props to automatically validate the input passed with new()

You can completely avoid to write the constructor by just using it and eventually declaring the name and the init methods to call.

INSTALLATION

Prerequisites
Perl version >= 5.6.1
CPAN
perl -MCPAN -e 'install OOTools'
Standard installation

From the directory where this file is located, type:

perl Makefile.PL
make
make test
make install

OPTIONS

name

The name of the constructor method. If you omit this option the 'new' name will be used by default.

init

Use this option if you want to call other method in your class to further initialize the object. You can group methods by passing a reference to an array containing the method names.

After the assignation and validation of the properties, the initialization methods in the init option will be called. Each init method will receive the blessed object passed in $_[0] and the other (original) parameter in the remaining @_.

SUPPORT and FEEDBACK

I would like to have just a line of feedback from everybody who tries or actually uses this module. PLEASE, write me any comment, suggestion or request. ;-)

More information at http://perl.4pro.net/?Class::new.

AUTHOR

Domizio Demichelis, <dd@4pro.net>.

COPYRIGHT

Copyright (c)2002 Domizio Demichelis. All Rights Reserved. This is free software; it may be used freely and redistributed for free providing this copyright header remains part of the software. You may not charge for the redistribution of this software. Selling this code without Domizio Demichelis' written permission is expressly forbidden.

This software may not be modified without first notifying the author (this is to enable me to track modifications). In all cases the copyright header should remain fully intact in all modifications.

This code is provided on an "As Is'' basis, without warranty, expressed or implied. The author disclaims all warranties with regard to this software, including all implied warranties of merchantability and fitness, in no event shall the author, be liable for any special, indirect or consequential damages or any damages whatsoever including but not limited to loss of use, data or profits. By using this software you agree to indemnify the author from any liability that might arise from it is use. Should this code prove defective, you assume the cost of any and all necessary repairs, servicing, correction and any other costs arising directly or indrectly from it is use.

The copyright notice must remain fully intact at all times. Use of this software or its output, constitutes acceptance of these terms.

BUGS

None known, but the module is not completely tested.

CREDITS

Thanks to Juerd Waalboer (http://search.cpan.org/author/JUERD) that with its Attribute::Property inspired the creation of this distribution.