switch (routine.getCallingConvention()) {
case JAVA:
return new ServerJavaMethodTExpression(routine, inputs);
case SCRIPT_FUNCTION_JAVA:
case SCRIPT_FUNCTION_JSON:
return new ScriptFunctionJavaRoutineTExpression(routine, inputs);
case SCRIPT_BINDINGS:
case SCRIPT_BINDINGS_JSON:
return new ScriptBindingsRoutineTExpression(routine, inputs);
default:
throw new AkibanInternalException("Unimplemented routine " + routine.getName());