Module com.jongsoft.lang

Package com.jongsoft.lang.control

The control package contains flow control interfaces. These can be used to direct the logical flow of your code easier.

Current support control mechanisms

• Optional, for null safe access to elements
• Try, for exception handling logic
• Equal, for logical equality building

The Optional is a functional representation of a value, or null. In both cases the Optional itself will be non null and allow functional access to its contents. It allows for handling when a value is present as well as supporting control operations in case no value is present.

    // Sample usage of the Optional
     API.Option("one")
          .ifPresent(System.out::println)
          .orElse(() -> System.out.println("No value is present");
 

Since:

0.0.1

Interface Summary

Interface	Description
CheckedConsumer<T>
CheckedFunction<U,T>
CheckedRunner
CheckedSupplier<T>
Equal	A control class to build an equality comparison.
Optional<T>	The Optional provides a functional way to detect null values without null reference checks or complicated logic throughout the code base.
Optional.OrElse	The OrElse interface is an extension to the Optional interface.
Try<T>	The try interface allows for easier and more functional coding around exception handling.