IBM Streams 4.2.1

Accessing resources at run time with generated C++ code

You can access resources at run time with generated C++ code.

Procedure

To access the resource, add a #include directive for the C++ header.

Example

<%SPL::CodeGen::implementationPrologue($model);%>

#include "MyResource.h"

// Constructor
MY_OPERATOR::MY_OPERATOR() : _i(0)
{
}

// Tuple processing for non-mutating ports
void MY_OPERATOR::process(Tuple const & tuple, uint32_t port)
{
  const IPort0Type & t = static_cast<const IPort0Type &>(tuple);
  SPL::rstring r = MY_TOOLKIT_MESSAGE_1(++_i, t.get_i());
  OPort0Type otuple(r);

  submit(otuple, 0); // submit to output port 0
}

<%SPL::CodeGen::implementationEpilogue($model);%>

This example includes both an #include directive for MyResource.h, and a macro MY_TOOLKIT_MESSAGE_1 to get the formatted string. The formatted string can now be used as wanted.