Using the Java APIs provided with Stream Data Platform - AF, you can write Java applications to use as custom adaptors. In this way, you can build adaptors that perform a wide range of functions.

To create a custom adaptor, you need to implement at least the following functions:

• Read and write external data
• Convert formats between I/O data and stream data
• Transmit tuples to the input stream
• Receive tuples from the output stream

For details about custom adaptors, see the uCosminexus Stream Data Platform - Application Framework Application Development Guide.