Compares origin entry groups based on the alphabeticality of their source attributes
Parameters: c1 - the first origin entry group to compare Parameters: c2 - the origin entry group compared to a negative if c1's source is less than c2's, 0 if they are equal, a positive if c1's source is greater than c2's See Also:java.util.Comparator.compare(java.lang.Objectjava.lang.Object)