Create a Java class named the same name as the Java class that defines the comparator with “SourcesHandler” appended.
For example, if the comparator is defined by a class named ExactComparator, the parameter validation class would be ExactComparatorSourcesHandler.
In this class, implement com.sun.mdm.matcher.comparators.validator.DataSourcesHandler.
The method in this class is described below.
Continue to Step 5: Define Curve Adjustment or Linear Fitting (Optional).