NAME
Data::Annotation::Chain
SYNOPSIS
use Data::Annotation::Chain;DESCRIPTION
Representation of a chain, meant to be used by Data::Annotation.
INTERFACE
Constructor
new
my $chain = Data::Annotation::Chain->(%opts);Make a new instance for a chain.
Input parameter rules is supposed to be an array reference whose content will be overwritte in time with Data::Annotation::Rule instances, unless elements are already blessed.
Accessors
default_retval
my $retval = $chain->default_retval;The default result (annotation) value returned when none of the rules that are checked as part of a call to "evaluate" provides anything meaningful back.
Initialized by key default in the constructor.
description
my $text = $chain->description;An optional description for the chain definition. It will be useful for you in a couple of months, after you forgot everything about it.
parse_context
my $ctx = $chain->parse_context;Whatever was passed as argument condition-parse-context, which can help set the stage for condition parsing. This should not be generally needed, but still. See Data::Annotation::Expression for more details.
rules
my $aref = $chain->rules;Get the list of rules configured for the chain. Thi
Methods
evaluate
my $result = $chain->evaluate($state, $overlay);Evaluate the annotation for data wrapped in some $overlay, leveraging state in $state.
ANYTHING ELSE (INCLUDING AUTHOR, COPYRIGHT AND LICENSE)
See documentation for Data::Annotation.