null-dev/CollectionsFactory

Change the collection implementations for entire programs with minimal source code changes.

CollectionsFactory

CollectionsFactory allows programs to share the same source code but use different collections based on the specific needs of the application.

Example Scenario

An applications is deployed to both mobile and desktop platforms.

• Mobile devices often do not have enough storage space for custom complex collection implementations and CollectionsFactory will use the built in collections.
• The desktop devices can afford the extra storage cost in return for better collection implementations and faster performance and CollectionsFactory will use something like fastutil instead.

Usage

1. If you intend to use custom collections, register your custom CollectionsProvider when your program launches with this: CollectionsFactory.registerProvider(provider);
2. Every time you need a new collection, use CollectionsFactory.new + whatever collection type you need.

Note

• You do not need to register a custom collections provider if you intend to use the built in collections, CollectionsFactory will automatically fall back.
• Collections.class is a mirror of CollectionsFactory.class, use it if you wish to avoid excessive typing.