IBM Streams 4.2

Developing

You develop streams processing applications in SPL and in other supported languages, such as Java™ or Scala.

About this task

This section describes only how you develop applications that process streaming data with the IBM® Streams Processing Language (SPL). If you develop streams applications in SPL, the preferred tool to develop applications is IBM Streams Studio, which contains both a text based SPL editor and a drag-and-drop based SPL graphical editor.

In IBM Streams versions 4.1 and later, you can also develop streams processing applications in other supported languages, such as Java™ or Scala. The Topology Toolkit (com.ibm.streamsx.topology) supports creating streaming applications for IBM Streams in these programming languages. To learn more, see the IBMStreams project on GitHub.

  • Basics of streams processing applications
    A streams processing application is a collection of operators, all of which process streams of data. You develop applications in the Streams Studio integrated development environment and run them in an IBM Streams instance.
  • Writing streams processing applications
    IBM Streams provides features and functions to help you write your applications to fulfill your business needs.
  • Optimizing job deployment
    When you create your IBM Streams application, you make choices about PE placement, threading, and resource usage that lead to better application throughput and performance. You can also change or add settings to the application at deployment time to optimize job deployment.
  • Sample applications
    IBM Streams includes sample applications to help you understand and write your own.
  • Compiling streams processing applications
    The IBM Streams Processing Language (SPL) Compiler is called sc and is included with the IBM Streams installation package. You compile SPL to create files to run on your IBM Streams instance.
  • Debugging streams processing applications
    The IBM Streams Processing Language (SPL) Streams Debugger (sdb) provides a command line-based interactive debugger for debugging streams processing applications.
  • Compiling IBM Operational Decision Manager rules into SPL
    You can use IBM Streams Studio to create IBM Operational Decision Manager rules. You can then convert the rules to an IBM Streams Processing Language (SPL) composite and use them for real-time analysis in IBM Streams.
  • Developing toolkits and operators
    You can create custom toolkits and operators for your applications.
  • Using JMX APIs to manage and monitor IBM Streams
    Java™ Management Extensions (JMX) APIs provide programmatic access to configuration and status information for IBM Streams objects, such as a domain and its instances, jobs, and resources.
  • Using REST APIs to monitor IBM Streams
    You can use the REST API from any application that can establish an HTTPS connection to the server that is running the web management service.
Related information:
Streams Studio