archaius-core/src/main/java/com/netflix/config/PollResult.java
public static PollResult createIncremental(Map<String, Object> added, 
            Map<String, Object> changed, Map<String, Object> deleted, Object checkPoint) {
        return new PollResult(added, changed, deleted, checkPoint);
    }
public static PollResult createIncremental(Map<String, Object> added, 
            Map<String, Object> changed, Map<String, Object> deleted, Object checkPoint) {
        return new PollResult(added, changed, deleted, checkPoint);
    }
Create a result that represents incremental changes from the configuration
source.

@param added properties added
@param changed properties changed
@param deleted properties deleted, in which case the value in the map will be ignored
@param checkPoint Object that served as a marker for this incremental change, for example, a time stamp
of the last change.