CollationElementsInterface is an interface which will be implemented by
all the Collator sensitive char data types. These methods will be called by
WorkHorseForCollatorDatatypes's collation sensitive methods
"like, stringcompare" etc.
This method returns the count of collation elements for this instance of
CollationElementsInterface. This method will return the correct value only if
method getCollationElementsForString has been called previously on this
instance of CollationElementsInterface.
count of collation elements for this instance of CollatorSQLChar