---
name: "Data::Stream::Bulk::Callback"
section: "3pm"
platform: "linux"
package: "libdata-stream-bulk-perl"
version: "0.11-1.1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/Data::Stream::Bulk::Callback"
---

# Data::Stream::Bulk::Callback(3pm)

Callback based bulk iterator

## NAME

Data::Stream::Bulk::Callback - Callback based bulk iterator

## VERSION

version 0.11

## SYNOPSIS

```
        Data::Stream::Bulk::Callback->new(
                callback => sub {
                        if ( @more_items = get_some() ) {
                                return \@more_items;
                        } else {
                                return; # done
                        }
                },
        }
```

## DESCRIPTION

This class provides a callback based implementation of Data::Stream::Bulk.

## ATTRIBUTES

- callback

  The subroutine that is called when more items are needed.

  Should return an array reference for the next block, or a false value if there is nothing left.

## METHODS

- get\_more

  See Data::Stream::Bulk::DoneFlag.

  Reinvokes `"callback"`.

## AUTHOR

Yuval Kogman \<nothingmuch@woobling.org\>

## COPYRIGHT AND LICENSE

This software is copyright (c) 2012 by Yuval Kogman.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.