doldol: Flag packer & handler for flaggable data

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Please see the README on GitHub at

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Change log
Dependencies base (>=4.4 && <5) [details]
License BSD-3-Clause
Copyright 2017-2019 YongJoon Joe
Author YongJoon Joe
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Source repo head: git clone
Uploaded by yongjoon at 2019-07-22T11:26:20Z


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doldol packs multiple flaggable data in a Flag value, and checks its flags by cheap operators.

In the current version, doldol will handle Enum e in a list only.

The name

doldol comes from Korean word 돌돌 which is a mimetic presenting roll up fabrics or something like flags.

Gap analysis


EnumSet is good library, but only works with List (ex. toEnum). I also need List interface only. However, next version of my simulation project needs to support Traversal class. Therefore, I keep to develop this. Of course, you can use EnumSet with fromList or etc., but when you consider performance seriously, let think one more time.