Implementing Stream manipulation and transformation

Now we have seen some recipes showing concepts such as basic implementation of Reactive Stream interfaces and hot Stream generation, it is time to present a recipe that will enumerate some useful Stream operators needed to combine two or more Streams, compute single-valued result using reduction, provide gateways of data emissions, group together single-threaded Streams, and transform them to non-Stream data.

Getting ready

Open project ch07 again to add the following services that showcase important operators for Stream manipulations and transformations.

How to do it...

There are other Stream operations that can be useful when it comes to data transformation, conversion, manipulation, and augmentation. To illustrate how to use these deterministic operations, perform the following steps:

1. Let us create a service class EmployeeTransformDataStream that will be applying these kind of Stream operations:

public interface EmployeeTransformDataStream...