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@@ -149,8 +149,8 @@ typedef boost::shared_ptr<RdataIterator> RdataIteratorPtr;
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/// "sort" and "search(find)" method?
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/// - what about comparing two RRsets of the same type? If we need this,
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/// should it compare rdata's as a set or as a list (i.e. compare
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-/// each %rdata one by one or as a whole)? c.f. NLnet Labs'
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-/// <a href="http://www.nlnetlabs.nl/projects/ldns/doc/index.html">ldns</a>
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+/// each %rdata one by one or as a whole)? c.f. NLnet Labs' ldns
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+/// (http://www.nlnetlabs.nl/projects/ldns/doc/index.html)
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/// has \c ldns_rr_list_compare(), which takes the latter approach
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/// (seemingly assuming the caller sorts the lists beforehand).
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/// - BIND9 libdns has some special DNSSEC-related methods
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@@ -498,13 +498,16 @@ public:
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/// \brief The \c BasicRRset class is a concrete derived class of
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/// \c AbstractRRset that defines a straightforward RRset implementation.
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///
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-/// designed to be as portable as possible. performance is a secondary
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-/// concern for this class.
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+/// This class is designed to be as portable as possible, and so it adopts
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+/// the Pimpl idiom to hide as many details as possible.
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+/// Performance is a secondary concern for this class.
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///
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-/// We'd use the default implementations for the toWire()
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-/// variants as defined in the base class. These are not fully optimized
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-/// for performance, but, again, it's a secondary goal for this generic
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-/// class.
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+/// This class is intended to be used by applications that only need
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+/// moderate level of performance with full functionality provided by
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+/// the \c AbstractRRset interfaces.
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+/// Highly performance-sensitive applications, such as a large scale
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+/// authoritative or caching name servers will implement and use a customized
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+/// version of derived \c AbstractRRset class.
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class BasicRRset : public AbstractRRset {
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///
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/// \name Constructors and Destructor
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JINMEI Tatuya