As far as exposing that field (either via protected field or a method), what
happens when we do wind up changing from StringBuffer to StringBuilder
(there are historical compatibility reasons for that selection, BTW - but
they are ones that are going away). All of the sudden, we are making
breaking changes in the API. Definitely no good - you wouldn't be very
happy if that change in the future suddenly takes down your web service...
An alternative that doesn't break encapsulation is to provide:
protected void appendTextChunk(String text){}
will that work for you?
Note that if we had exposed the underlying string buffer directly, we would
have broken encapsulation because StringBuffer isn't immutable. Allowing
sub-classes to change the internal state of a parent class isn't a good
idea, unless it's through a well defined interface that the parent knows
about (i.e. appendTextChunk).
Let me know if the above will be of use and I'll get it added for you - or
propose an alternative and we can continue the discussion.
Cheers,
- K
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