Database Reference
In-Depth Information
Figure 6-11
Display live data being fed from the NewTrendValue stream by clicking
directly on the Instance Graph
the installation. In many cases, the user simply needs to click on the task
and it is completed automatically with minimal configuration. (You can also
launch First Steps any time using the
streamtool launch -firststeps
command.)
As you can see, there are many powerful tools that help users and devel-
opers to assemble, deploy, run, and debug Streams applications. There are
also tools to effectively install and manage a cluster, which provide detailed
health and metrics information. Built-in operators make it easy to assemble
applications without writing a program. It is easier than ever to visualize live
streaming data using Streams Console and Streams Studio.
The Streams Processing Language
With the new Streams Graphical Editor, many applications can be created
without looking at any source code. However, under every Streams applica-
tion is the Streams Processing Language (SPL). SPL is a structured application
