Package org.cloudgraph.hbase.key

Contains HBase composite row and column key creation interfaces and infrastructure.

See: Description

Interface Summary

Interface	Description
ConfigurableKeyFactory	A key factory which helps implementations leverage table and data graph specific configuration information, such as the hashing algorithm and field level row and column model settings.

Class Summary

Class	Description
ByteBufferKeyFactory	A configuration driven abstract class which helps subclasses leverage table and data graph specific configuration information, such as the hashing algorithm and field level row and column model settings, as well as java ByteBuffer for composite row and column key creation using byte arrays.
CompositeColumnKeyFactory	Creates an HBase column key based on the configured CloudGraph column key model for a specific HTable configuration.
CompositeRowKeyExpressionFactory	Generates an HBase row key based on the configured CloudGraph Row Key Model for a specific HTable Configuration.
CompositeRowKeyFactory	Generates an HBase row key based on the configured CloudGraph Row Key Model for a specific HTable Configuration.
CompositeRowKeyReader	Reads and parses row keys into KeyValue elements where the values can then be found using a given Endpoint and used for syntax tree evaluation, for example.
KeySupport	Delegate class supporting composite key generation.
StatefullColumnKeyFactory	Generates an HBase column key based on the configured CloudGraph column key model for a specific HTable configuration.

Package org.cloudgraph.hbase.key Description

Contains HBase composite row and column key creation interfaces and infrastructure.

The initial creation and subsequent reconstitution for query retrieval purposes of both row and column keys in CloudGraph™ leverages byte array level API in both Java and the current underlying SDO 2.1 implementation, PlasmaSDO™. Both composite row and column keys are composed in part of structural metadata, and the lightweight metadata API within PlasmaSDO™ contains byte-array level, cached lookup of all basic metadata elements including logical and physical type and property names.