Package com.bigdata.btree.raba.codec

See: Description

Interface Summary

Interface	Description
ICodedRaba	Interface for an coded logical byte[][].
IRabaCoder	Interface for coding (compressing) a logical byte[][] and for accessing the coded data in place.
IRabaGenerator	Interface for IRaba data generators.

Class Summary

Class	Description
AbstractCodedRaba	Abstract implementation throws UnsupportedOperationException for all mutation operations.
AbstractFrontCodedRabaCoderTestCase	Test suite for the FrontCodedRabaCoder.
AbstractRabaCoderTestCase	Abstract test suite for IRabaCoder implementations.
AbstractRabaCoderTestCase.TestOp	Tests of the Op test helper class.
CanonicalHuffmanRabaCoder	This class provides (de-)compression for logical byte[][]s based on canonical Huffman codes.
CanonicalHuffmanRabaCoder.AbstractCodingSetup	Abstract base class for preparing a logical byte[][] for coding.
CanonicalHuffmanRabaCoder.CodedRabaImpl	Decoder.
CanonicalHuffmanRabaCoder.RabaCodingSetup	Sets up for coding an IRaba representing B+Tree values.
EmptyRabaValueCoder	Useful when a B+Tree uses keys but not values.
FixedLengthValueRabaCoder	This class does not offer any compression.
FrontCodedRabaCoder	Class provides (de-)compression for logical byte[][]s based on front coding.
FrontCodedRabaCoder.DefaultFrontCodedRabaCoder	A pre-parameterized version of the FrontCodedRabaCoder which is used as the default IRabaCoder for B+Tree keys for both nodes and leaves.
FrontCodedRabaCoderDupKeys	Variant of the FrontCodedRabaCoder that supports duplicate keys.
MutableRabaCoder	This "codes" a raba as a MutableKeyBuffer or MutableValueBuffer depending on whether it represents B+Tree keys or values.
RandomKeysGenerator	Random B+Tree keys generator.
RandomURIGenerator	Generate n random and distinct URIs.
SimpleRabaCoder	This class does not offer any compression.
TestAll	Aggregates test suites into increasing dependency order.
TestCanonicalHuffmanRabaCoder	Test suite for the CanonicalHuffmanRabaCoder.
TestConditionalRabaCoder_keys_simple_frontCoded	Test suite for the ConditionalRabaCoder.
TestConditionalRabaCoder_values_simple_canonical	Test suite for the ConditionalRabaCoder.
TestEmptyRabaCoder	Unit tests for the EmptyRabaValueCoder.
TestFixedLengthValueRabaCoder	Test suite for the FixedLengthValueRabaCoder.
TestFrontCodedRabaCoderRatio2	Test suite for the FrontCodedRabaCoder.
TestFrontCodedRabaCoderRatio32	Test suite for the FrontCodedRabaCoder.
TestFrontCodedRabaCoderRatio8	Test suite for the FrontCodedRabaCoder.
TestSimpleRabaCoder	Test suite for the SimpleRabaCoder.
TokenizeKeysGenerator	Tokenize an input file, collect the set of distinct keywords, and encode those keywords as unsigned byte[]s.

Package com.bigdata.btree.raba.codec Description

This package provides several implementations for coding keys and values in found in a B+Tree node or leaf, including no coding, prefix coding, and canonical huffman coding (which preserves the lexical order of the uncoded values for which the dictionary may be coded and transmitted in fewer bits).