1 files changed, 158 insertions, 0 deletions
diff --git a/lib/Data/MultiValued/TagsAndRanges.pm b/lib/Data/MultiValued/TagsAndRanges.pm
new file mode 100644
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+++ b/lib/Data/MultiValued/TagsAndRanges.pm
@@ -0,0 +1,158 @@
+package Data::MultiValued::TagsAndRanges;
+use Moose;
+use MooseX::Params::Validate;
+use Moose::Util::TypeConstraints;
+use MooseX::Types::Moose qw(Num Str Undef Any);
+use Data::MultiValued::Exceptions;
+use Data::MultiValued::TagContainerForRanges;
+
+# ABSTRACT: Handle values with tags and validity ranges
+
+=head1 SYNOPSIS
+
+  use Data::MultiValued::TagsAndRanges;
+
+  my $obj = Data::MultiValued::TagsAndRanges->new();
+  $obj->set({
+    tag => 'tag1',
+    from => 10,
+    to => 20,
+    value => 'foo',
+  });
+  say $obj->get({tag => 'tag1', at => 15}); # prints 'foo'
+  say $obj->get({tag => 'tag1', at => 35}); # dies
+  say $obj->get({tag => 'tag2', at => 15}); # dies
+
+=cut
+
+has _storage => (
+    is => 'rw',
+    isa => class_type('Data::MultiValued::TagContainerForRanges'),
+    init_arg => undef,
+    lazy_build => 1,
+);
+
+sub _build__storage {
+    Data::MultiValued::TagContainerForRanges->new();
+}
+
+=method C<set>
+
+  $obj->set({ tag => $the_tag, from => $min, to => $max, value => $the_value });
+
+Stores the given value for the given tag and range. Does not throw
+exceptions.
+
+See L<Data::MultiValued::Tags/set> and
+L<Data::MultiValued::Ranges/set> for more details.
+
+=cut
+
+sub set {
+    my ($self,%args) = validated_hash(
+        \@_,
+        from => { isa => Num|Undef, optional => 1, },
+        to => { isa => Num|Undef, optional => 1, },
+        tag => { isa => Str, optional => 1, },
+        value => { isa => Any, },
+    );
+
+    $self->_storage->get_or_create(\%args)
+         ->get_or_create(\%args)
+         ->{value} = $args{value};
+}
+
+=method C<get>
+
+  my $value = $obj->get({ tag => $the_tag, at => $point });
+
+Retrieves the value for the given tag and point. Throws a
+L<Data::MultiValued::Exceptions::RangeNotFound|Data::MultiValued::Exceptions/Data::MultiValued::Exceptions::RangeNotFound>
+exception if no ranges exist in this object that include the point,
+and
+L<Data::MultiValued::Exceptions::TagNotFound|Data::MultiValued::Exceptions/Data::MultiValued::Exceptions::TagNotFound>
+exception if the tag does not exists in this object.
+
+See L<Data::MultiValued::Tags/get> and
+L<Data::MultiValued::Ranges/get> for more details.
+
+=cut
+
+sub get {
+    my ($self,%args) = validated_hash(
+        \@_,
+        at => { isa => Num|Undef, optional => 1, },
+        tag => { isa => Str, optional => 1, },
+    );
+
+    $self->_storage->get(\%args)
+         ->get(\%args)
+         ->{value};
+}
+
+=method C<clear>
+
+  $obj->clear({ tag => $the_tag, from => $min, to => $max });
+
+If a range is specified, deletes all values for the given range and
+tag. If no range is specified, delete all values for the given tag.
+
+Does not throw exceptions.
+
+See L<Data::MultiValued::Tags/clear> and
+L<Data::MultiValued::Ranges/clear> for more details.
+
+=cut
+
+sub clear {
+    my ($self,%args) = validated_hash(
+        \@_,
+        from => { isa => Num|Undef, optional => 1, },
+        to => { isa => Num|Undef, optional => 1, },
+        tag => { isa => Str, optional => 1, },
+    );
+
+    if (exists $args{from} || exists $args{to}) {
+        $self->_storage->get(\%args)
+            ->clear(\%args);
+    }
+    else {
+        $self->_storage->clear(\%args);
+    }
+}
+
+=head1 Serialisation helpers
+
+These are used through
+L<Data::MultiValued::UglySerializationHelperRole>.
+
+=head2 C<_rebless_storage>
+
+Blesses the storage into L<Data::MultiValued::TagContainerForRanges>,
+then calls C<_rebless_storage> on it.
+
+=cut
+
+sub _rebless_storage {
+    my ($self) = @_;
+
+    bless $self->{_storage},'Data::MultiValued::TagContainerForRanges';
+    $self->_storage->_rebless_storage;
+}
+
+=head2 C<_as_hash>
+
+Returns the internal representation with no blessed hashes, with as
+few copies as possible. Depends on
+L<Data::MultiValued::TagContainerForRanges/_as_hash>.
+
+=cut
+
+sub _as_hash {
+    my ($self) = @_;
+
+    my $ret = $self->_storage->_as_hash;
+    return {_storage=>$ret};
+}
+
+1;