CampaignFeedOperation operation = new CampaignFeedOperation();
operation.setOperand(campaignFeed);
operation.setOperator(Operator.ADD);
CampaignFeedReturnValue result =
campaignFeedService.mutate(new CampaignFeedOperation[] {operation});
for (CampaignFeed savedCampaignFeed : result.getValue()) {
System.out.printf("Campaign with id %d was associated with feed with id %d.\n",
savedCampaignFeed.getCampaignId(), savedCampaignFeed.getFeedId());
}
}