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lib/AI/ExpertSystem/Simple/Rule.pm  view on Meta::CPAN

Returns the name of the rule.

=item state( )

Returns the current state of the rule.

=item given( NAME, VALUE )

The NAME / VALUE attribute pair is checked against the rule's conditions to see if a condition is met and the state of the rule 
is changed in light of the result.

=item actions( )

Returns a list of the actions set in the rule.

=item conditions( )

Returns a list of the conditions matched in the rule.

=item unresolved( )

Returns a list of all the unresolved condition of the rule.

=back

=head2 Private methods

None

=head1 ENVIRONMENT

None

=head1 DIAGNOSTICS

=over 4

=item Rule->new() takes 1 argument

When the constructor is initialised it requires one argument. This message is given if more or less arguments were supplied.

=item Rule->new() argument 1 (NAME) is undefined

The corrct number of arguments were supplied to the constructor, however the first argument, NAME, was undefined.

=item Rule->reset() takes no arguments

When the method is called it requires no arguments. This message is given if more or less arguments were supplied.

=item Rule->add_condition() takes 2 arguments

When the method is called it requires two arguments. This message is given if more or less arguments were supplied.

=item Rule->add_condition() argument 1 (NAME) is undefined

The corrct number of arguments were supplied with the method call, however the first argument, NAME, was undefined.

=item Rule->add_condition() argument 2 (VALUE) is undefined

The corrct number of arguments were supplied with the method call, however the second argument, VALUE, was undefined.

=item Rule->add_condition() has already been set

This method has already been called and the value set. It cannot be called twice.

=item Rule->add_action() takes 2 arguments

When the method is called it requires two arguments. This message is given if more or less arguments were supplied.

=item Rule->add_action() argument 1 (NAME) is undefined

The corrct number of arguments were supplied with the method call, however the first argument, NAME, was undefined.

=item Rule->add_action() argument 2 (VALUE) is undefined

The corrct number of arguments were supplied with the method call, however the second argument, VALUE, was undefined.

=item Rule->add_action() has already been set

This method has already been called and the value set. It cannot be called twice.

=item Rule->name() takes no arguments

When the method is called it requires no arguments. This message is given if more or less arguments were supplied.

=item Rule->state() takes no arguments

When the method is called it requires no arguments. This message is given if more or less arguments were supplied.

=item Rule->given() takes 2 arguments

When the method is called it requires two arguments. This message is given if more or less arguments were supplied.

=item Rule->given() argument 1 (NAME) is undefined

The corrct number of arguments were supplied with the method call, however the first argument, NAME, was undefined.

=item Rule->given() argument 2 (VALUE) is undefined

The corrct number of arguments were supplied with the method call, however the second argument, VALUE, was undefined.

=item Rule->actions() takes no arguments

When the method is called it requires no arguments. This message is given if more or less arguments were supplied.

=item Rule->conditions() takes no arguments

When the method is called it requires no arguments. This message is given if more or less arguments were supplied.

=item Rule->unresolved() takes no arguments

When the method is called it requires no arguments. This message is given if more or less arguments were supplied.

=back

=head1 BUGS

None

=head1 FILES

See Rules.t in the test directory

=head1 SEE ALSO

AI::ExpertSystem::Simple - The base class for the expert system

AI::ExpertSystem::Simple::Goal - A utility class

AI::ExpertSystem::Simple::knowledge - A utility class

=head1 AUTHORS

Peter Hickman (peterhi@ntlworld.com)

=head1 COPYRIGHT

Copyright (c) 2003, Peter Hickman. All rights reserved.

This module is free software. It may be used, redistributed and/or 
modified under the same terms as Perl itself.