enum

Utility to encode list of numbers into string. For that in memory table is created where each number represents a character. To add some security custom seed must be set.

Highly customizable to set own characters or include just strings or even only numbers.

See

• ToUpperAndLowerCaseEnum.java how to define the case insensitive enum lookup funciton.
• TestEnum.java how to define more advanced functions.

And usage is described at

• EnumLookupBuilderSpec.java

Usually I create my enums as:

public enum MyEnum {
    first,
    second,
    third;

    static final Function<String, Optional<MyEnum>> LOOKUP = EnumLookupBuilder.buildCaseInsensitive(MyEnum.class);
    static Optional<MyEnum> lookup(String key) {
        return LOOKUP.apply(key);
    }
}