java.util extensions

Functional extensions

Classes related to java.util.Function and extensions like Predicate, Consumer and Supplier.

• TriFunction, QuadriFunction

• TriConsumer

• TriPredicate

• Morphing methods like

  • TriFunction#ignoreArg[1-4](…​) morphs a TriFunction to a QuadriFunction

  • TriFunction#withArg[1-3](…​) morphs a TriFunction to a BiFunction.

• Utilities for that in Functions, Consumers, Predicates

• Consistent equals and hashCode, for the utility functions that produce functional implementations. E.g. the above mentioned ignoreArg* and withArg* are not simply implemented with lambda’s, but also with equals and hashcode based on the source functional class implementation.