Workflow::Base(3) User Contributed Perl Documentation Workflow::Base(3)NAMEWorkflow::Base - Base class with constructor
VERSION
This documentation describes version 1.08 of this package
SYNOPSIS
package My::App::Foo;
use base qw( Workflow::Base );
DESCRIPTION
Provide a constructor and some other useful methods for subclasses.
METHODS
Class Methods
new( @params )
Just create a new object (blessed hashref) and pass along @params to
the "init()" method, which subclasses can override to initialize
themselves.
Returns: new object
Object Methods
init( @params )
Subclasses may implement to do initialization. The @params are whatever
is passed into "new()". Nothing need be returned.
param( [ $name, $value ] )
Associate arbitrary parameters with this object.
If neither $name nor $value given, return a hashref of all parameters
set in object:
my $params = $object->param();
while ( my ( $name, $value ) = each %{ $params } ) {
print "$name = $params->{ $name }\n";
}
If $name given and it is a hash reference, assign all the values of the
reference to the object parameters. This is the way to assign multiple
parameters at once. Note that these will overwrite any existing
parameter values. Return a hashref of all parameters set in object.
$object->param({ foo => 'bar',
baz => 'blarney' });
If $name given and it is not a hash reference, return the value
associated with it, "undef" if $name was not previously set.
my $value = $object->param( 'foo' );
print "Value of 'foo' is '$value'\n";
If $name and $value given, associate $name with $value, overwriting any
existing value, and return the new value.
$object->param( foo => 'blurney' );
delete_param( [ $name ] )
Delete parameters from this object.
If $name given and it is an array reference, then delete all parameters
from this object. All deleted parameters will be returned as a hash
reference together with their values.
my $deleted = $object->delete_param(['foo','baz']);
foreach my $key (keys %{$deleted})
{
print $key."::=".$deleted->{$key}."\n";
}
If $name given and it is not an array reference, delete the parameter
and return the value of the parameter.
my $value = $object->delete_param( 'foo' );
print "Value of 'foo' was '$value'\n";
If $name is not defined or $name does not exists the undef is returned.
clear_params()
Clears out all parameters associated with this object.
normalize_array( \@array | $item )
If given "\@array" return it dereferenced; if given $item, return it in
a list. If given neither return an empty list.
COPYRIGHT
Copyright (c) 2003-2004 Chris Winters. All rights reserved.
This library is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
AUTHORS
Chris Winters <chris@cwinters.com>
perl v5.14.1 2011-07-21 Workflow::Base(3)
