platformFunction.setLhsOperand(new FunctionArgumentOperand[] {platformRequestContextOperand});
platformFunction.setOperator(FunctionOperator.EQUALS);
platformFunction.setRhsOperand(new FunctionArgumentOperand[] {platformOperand});
// Combine the two functions using an AND operation.
FunctionOperand feedItemFunctionOperand = new FunctionOperand();
feedItemFunctionOperand.setValue(feedItemFunction);
FunctionOperand platformFunctionOperand = new FunctionOperand();
platformFunctionOperand.setValue(platformFunction);
Function combinedFunction = new Function();
combinedFunction.setOperator(FunctionOperator.AND);
combinedFunction.setLhsOperand(new FunctionArgumentOperand[] {
feedItemFunctionOperand, platformFunctionOperand});