NAME

SYNOPSIS

    package Foo;
    use base qw( Class::ErrorHandler );

    sub class_method {
        my $class = shift;
        ...
        return $class->error("Help!")
            unless $continue;
    }

    sub object_method {
        my $obj = shift;
        ...
        return $obj->error("I am no more")
            unless $continue;
    }

    package main;
    use Foo;

    Foo->class_method or die Foo->errstr;

    my $foo = Foo->new;
    $foo->object_method or die $foo->errstr;

DESCRIPTION

On failure (for whatever reason), a subclass should call error and return to the caller; error itself sets the error message internally, then returns "undef". This has the effect of the method that failed returning "undef" to the caller. The caller should check for errors by checking for a return value of "undef", and calling errstr to get the value of the error message on an error.

As demonstrated in the SYNOPSIS, error and errstr work as both class methods and object methods.

USAGE

LICENSE

AUTHOR & COPYRIGHT