boolean addRelatedClass(final RelType relType, final ClassInfo classInfo) {
        Set<ClassInfo> classInfoSet = relatedClasses.get(relType);
        if (classInfoSet == null) {
            relatedClasses.put(relType, classInfoSet = new LinkedHashSet<>(4));
        }
        return classInfoSet.add(classInfo);
    }
boolean addRelatedClass ( final RelType relType , final ClassInfo classInfo ) { Set < ClassInfo > classInfoSet = relatedClasses . get ( relType ) ; if ( classInfoSet == null ) { relatedClasses . put ( relType , classInfoSet = new LinkedHashSet < > ( 4 ) ) ; } return classInfoSet . add ( classInfo ) ; }
Add a class with a given relationship type. Return whether the collection changed as a result of the call.

@param relType
the {@link RelType}
@param classInfo
the {@link ClassInfo}
@return true, if successful