Copying and modifying a message by using a JavaCompute node
You can use the Modify Message Class template in the JavaCompute node wizard to generate a copied or modified version of an input message
About this task
The incoming message and message assembly are read-only.
To modify a message, a copy of the incoming message must be made.
The Modifying Message Class template in the JavaCompute node wizard generates
this copy. In the template code, the copy constructor of MBMessage is
called to create a message that is populated by copying the input,
as shown in the following Java™ code:
MbMessage outMessage = new MbMessage(inAssembly.getMessage());
MbMessageAssembly outAssembly = new MbMessageAssembly(inAssembly, outMessage);