This inheritance list is sorted roughly, but not completely, alphabetically:

[detail level 12345]

CXapian::Compactor	Compact a database, or merge and compact several
▼CXapian::Database	This class is used to access a database, or a group of databases
CXapian::WritableDatabase	This class provides read/write access to a database
CXapian::Document	A handle representing a document in a Xapian database
CXapian::Enquire	This class provides an interface to the information retrieval system for the purpose of searching
▼CXapian::Error	All exceptions thrown by Xapian are subclasses of Xapian::Error
▼CXapian::LogicError	The base class for exceptions indicating errors in the program logic
CXapian::AssertionError	AssertionError is thrown if a logical assertion inside Xapian fails
CXapian::InvalidArgumentError	InvalidArgumentError indicates an invalid parameter value was passed to the API
CXapian::InvalidOperationError	InvalidOperationError indicates the API was used in an invalid way
CXapian::UnimplementedError	UnimplementedError indicates an attempt to use an unimplemented feature
▼CXapian::RuntimeError	The base class for exceptions indicating errors only detectable at runtime
▼CXapian::DatabaseError	DatabaseError indicates some sort of database related error
CXapian::DatabaseClosedError	Indicates an attempt to access a closed database
CXapian::DatabaseCorruptError	DatabaseCorruptError indicates database corruption was detected
CXapian::DatabaseCreateError	DatabaseCreateError indicates a failure to create a database
CXapian::DatabaseLockError	DatabaseLockError indicates failure to lock a database
CXapian::DatabaseModifiedError	DatabaseModifiedError indicates a database was modified
▼CXapian::DatabaseOpeningError	DatabaseOpeningError indicates failure to open a database
CXapian::DatabaseNotFoundError	Indicates an attempt to access a database not present
CXapian::DatabaseVersionError	DatabaseVersionError indicates that a database is in an unsupported format
CXapian::DocNotFoundError	Indicates an attempt to access a document not present in the database
CXapian::FeatureUnavailableError	Indicates an attempt to use a feature which is unavailable
CXapian::InternalError	InternalError indicates a runtime problem of some sort
▼CXapian::NetworkError	Indicates a problem communicating with a remote database
CXapian::NetworkTimeoutError	Indicates a timeout expired while communicating with a remote database
CXapian::QueryParserError	Indicates a query string can't be parsed
CXapian::RangeError	RangeError indicates an attempt to access outside the bounds of a container
CXapian::SerialisationError	Indicates an error in the std::string serialisation of an object
CXapian::WildcardError	WildcardError indicates an error expanding a wildcarded query
CXapian::ESet	Class representing a list of search results
CXapian::ESetIterator	Iterator over a Xapian::ESet
▼CXapian::Internal::intrusive_base
CXapian::StemImplementation	Class representing a stemming algorithm implementation
CXapian::LatLongCoord	A latitude-longitude coordinate
CXapian::LatLongCoords	A sequence of latitude-longitude coordinates
CXapian::LatLongCoordsIterator	An iterator across the values in a LatLongCoords object
▼CXapian::LatLongMetric	Base class for calculating distances between two lat/long coordinates
CXapian::GreatCircleMetric	Calculate the great-circle distance between two coordinates on a sphere
▼CXapian::MatchDecider	Base class for matcher decision functor
CXapian::ValueSetMatchDecider	MatchDecider filtering results based on whether document values are in a user-defined set
CXapian::MSet	Class representing a list of search results
CXapian::MSetIterator	Iterator over a Xapian::MSet
▼CXapian::Internal::opt_intrusive_base
CXapian::ErrorHandler	Decide if a Xapian::Error exception should be ignored
▼CXapian::ExpandDecider	Virtual base class for expand decider functor
CXapian::ExpandDeciderAnd	ExpandDecider subclass which rejects terms using two ExpandDeciders
CXapian::ExpandDeciderFilterPrefix	ExpandDecider subclass which restrict terms to a particular prefix
CXapian::ExpandDeciderFilterTerms	ExpandDecider subclass which rejects terms in a specified list
CXapian::FieldProcessor	Base class for field processors
▼CXapian::KeyMaker	Virtual base class for key making functors
CXapian::LatLongDistanceKeyMaker	KeyMaker subclass which sorts by distance from a latitude/longitude
CXapian::MultiValueKeyMaker	KeyMaker subclass which combines several values
▼CXapian::MatchSpy	Abstract base class for match spies
CXapian::ValueCountMatchSpy	Class for counting the frequencies of values in the matching documents
▼CXapian::PostingSource	Base class which provides an "external" source of postings
CXapian::FixedWeightPostingSource	A posting source which returns a fixed weight for all documents
▼CXapian::ValuePostingSource	A posting source which generates weights from a value slot
CXapian::LatLongDistancePostingSource	Posting source which returns a weight based on geospatial distance
CXapian::ValueMapPostingSource	A posting source which looks up weights in a map using values as the key
▼CXapian::ValueWeightPostingSource	A posting source which reads weights from a value slot
CXapian::DecreasingValueWeightPostingSource	Read weights from a value which is known to decrease as docid increases
▼CXapian::RangeProcessor	Base class for range processors
CXapian::DateRangeProcessor	Handle a date range
CXapian::NumberRangeProcessor	Handle a number range
▼CXapian::Stopper	Abstract base class for stop-word decision functor
CXapian::SimpleStopper	Simple implementation of Stopper class - this will suit most users
▼CXapian::ValueRangeProcessor	Base class for value range processors
▼CXapian::StringValueRangeProcessor	Handle a string range
CXapian::DateValueRangeProcessor	Handle a date range
CXapian::NumberValueRangeProcessor	Handle a number range
CXapian::PositionIterator	Class for iterating over term positions
CXapian::PostingIterator	Class for iterating over a list of terms
CXapian::Query	Class representing a query
CXapian::QueryParser	Build a Xapian::Query object from a user query string
CXapian::Registry	Registry for user subclasses
CXapian::RSet	A relevance set (R-Set)
CXapian::Stem	Class representing a stemming algorithm
CXapian::TermGenerator	Parses a piece of text and generate terms
CXapian::TermIterator	Class for iterating over a list of terms
CXapian::Utf8Iterator	An iterator which returns Unicode character values from a UTF-8 encoded string
CXapian::ValueIterator	Class for iterating over document values
▼CXapian::Weight	Abstract base class for weighting schemes
CXapian::BB2Weight	This class implements the BB2 weighting scheme
CXapian::BM25PlusWeight	Xapian::Weight subclass implementing the BM25+ probabilistic formula
CXapian::BM25Weight	Xapian::Weight subclass implementing the BM25 probabilistic formula
CXapian::BoolWeight	Class implementing a "boolean" weighting scheme
CXapian::CoordWeight	Xapian::Weight subclass implementing Coordinate Matching
CXapian::DLHWeight	This class implements the DLH weighting scheme, which is a representative scheme of the Divergence from Randomness Framework by Gianni Amati
CXapian::DPHWeight	This class implements the DPH weighting scheme
CXapian::IfB2Weight	This class implements the IfB2 weighting scheme
CXapian::InL2Weight	This class implements the InL2 weighting scheme
CXapian::IneB2Weight	This class implements the IneB2 weighting scheme
CXapian::LMWeight	Xapian::Weight subclass implementing the Language Model formula
CXapian::PL2PlusWeight	Xapian::Weight subclass implementing the PL2+ probabilistic formula
CXapian::PL2Weight	This class implements the PL2 weighting scheme
CXapian::TfIdfWeight	Xapian::Weight subclass implementing the tf-idf weighting scheme
CXapian::TradWeight	Xapian::Weight subclass implementing the traditional probabilistic formula