Package com.bigdata.rdf.lexicon

Interface Summary

ITermIdCodes	An interface that defines bit masks that are applied to the low bits of the assigned term identifiers and which indicate directly (without consulting the term index) whether a term is a URI, Literal, BNode, or Statement.
ITermIdFilter	Interface for filtering base term identifiers, typically based on the bit flags defined ITermIdCodes.
ITermIndexCodes	This interface defines the signed byte values indicating the type of a term in the term index.
LexiconKeyBuilder.IDatatypeKeyCoder	Interface for classes encapsulating the logic to encode (and where possible, decode) datatype literals.

Class Summary

Id2TermTupleSerializer	Encapsulates key and value formation for the reverse lexicon index.
Id2TermWriteProc	Unisolated write operation makes consistent assertions on the id:term index based on the data developed by the Term2IdWriteProc operation.
Id2TermWriteProc.Id2TermWriteProcConstructor
KVOTermIdComparator	Places KVOs containing BigdataValue references into an ordering determined by the assigned term identifiers}.
LexiconKeyBuilder	Flyweight helper class for building (and decoding to the extent possible) unsigned byte[] keys for RDF Values and term identifiers.
LexiconKeyBuilder.XSDAnyURICoder	Handles anything derived from the primitive data type XMLSchema.STRING.
LexiconKeyBuilder.XSDBooleanCoder	Handles anything derived from the primitive data type XMLSchema.BOOLEAN.
LexiconKeyBuilder.XSDByteCoder	Handles XMLSchema.BYTE.
LexiconKeyBuilder.XSDDoubleCoder	Handles anything derived from the primitive data type XMLSchema.DOUBLE.
LexiconKeyBuilder.XSDFloatCoder	Handles anything derived from the primitive data type XMLSchema.FLOAT.
LexiconKeyBuilder.XSDIntCoder	Handles XMLSchema.INT.
LexiconKeyBuilder.XSDLongCoder	Handles XMLSchema.LONG.
LexiconKeyBuilder.XSDShortCoder	Handles XMLSchema.SHORT.
LexiconKeyBuilder.XSDXmlLiteralCoder	Handles anything derived from the primitive data type RDF.XMLLITERAL.
LexiconKeyOrder	Natural index orders for the LexiconRelation.
LexiconRelation	The LexiconRelation handles all things related to the indices mapping RDF Values onto internal 64-bit term identifiers.
ReverseIndexWriterTask	Add terms to the reverse index, which is the index that we use to lookup the RDF value by its term identifier so that we can externalize ISPOs as RDF/XML or the like.
Term2IdTupleSerializer	Handles the term:id index (forward mapping for the lexicon).
Term2IdWriteProc	This unisolated operation inserts terms into the term:id index, assigning identifiers to terms as a side-effect.
Term2IdWriteProc.Result	Object encapsulates the discovered / assigned term identifiers and provides efficient serialization for communication of those data to the client.
Term2IdWriteProc.Term2IdWriteProcConstructor
Term2IdWriteTask	Synchronous RPC write on the TERM2ID index.
Term2IdWriteTask.AssignTermId	Assigns the term identifier to duplicate BigdataValue for a single write operation when an IDuplicateRemover was applied.
TermIdEncoder	An encoder/decoder for long values formed from a partition identifier in the high word and a local counter in the low word where (1) the sign bit is stolen from both the local counter and the partition identifier; and then (2) the low N bits of the long value are reversed and rotated into the high N bits of the long value.
WriteTaskStats	Class for reporting various timings for writes on the lexicon indices.