Now that we have a general idea of what WebSphere eXtreme Scale can do for us, let's find out how to use it. Putting data into, and retrieving data from the grid is done with four closely related API groups. Each API serves a different purpose, though they all require knowledge of the same foundation topics. Chapter 1 introduced us to the ObjectMap API. The ObjectMap API provides the most basic functionality in WebSphere eXtreme Scale, but that doesn't mean it is the least useful. There are many obvious uses for distributed maps, and a few surprises await us as we progress with ObjectMap. In this chapter, we'll delve deeper into the ObjectMap API.
Through exploring the ObjectMap API, we'll become more familiar with the relationship between an ObjectMap and a BackingMap. We'll also learn how they work together to provide access to and persistence for our objects.
After reading this chapter you will:
Have a working knowledge of the most commonly used methods in the...