operation.setOperator(Operator.ADD);
AdExtensionOverrideOperation[] operations = new AdExtensionOverrideOperation[] {operation};
// Add ad extension override.
AdExtensionOverrideReturnValue result = adExtensionOverrideService.mutate(operations);
// Display ad extension overrides.
if (result != null && result.getValue() != null) {
for (AdExtensionOverride adExtensionOverrideResult : result.getValue()) {
System.out.println("Ad extension override with ad id \""
+ adExtensionOverrideResult.getAdId() + "\" and ad extension id \""
+ adExtensionOverrideResult.getAdExtension().getId() + "\" was added.");
}
} else {