org.cloudgraph.hbase.key

Class StatefullColumnKeyFactory

java.lang.Object

org.cloudgraph.hbase.key.ByteBufferKeyFactory

org.cloudgraph.hbase.key.CompositeColumnKeyFactory

org.cloudgraph.hbase.key.StatefullColumnKeyFactory

All Implemented Interfaces:

ConfigurableKeyFactory, GraphColumnKeyFactory, GraphStatefullColumnKeyFactory

public class StatefullColumnKeyFactory
extends CompositeColumnKeyFactory
implements GraphStatefullColumnKeyFactory

Generates an HBase column key based on the configured CloudGraph column key model for a specific HTable configuration.

The initial creation and subsequent reconstitution for query retrieval purposes of both row and column keys in CloudGraph™ is efficient, as it 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.

Since:

0.5

Author:

Scott Cinnamond

See Also:

ColumnKeyModel, Table, SequenceGenerator

Field Summary

Fields inherited from class org.cloudgraph.hbase.key.ByteBufferKeyFactory

buf, bufsize, charset, graph, keySupport, rootType, table

Constructor Summary

Constructors

Constructor and Description
StatefullColumnKeyFactory(org.plasma.sdo.PlasmaType rootType, StoreMappingContext mappingContext)
StatefullColumnKeyFactory(RowOperation graphRow)

Method Summary

Modifier and Type	Method and Description
byte[]	createColumnKey(org.plasma.sdo.PlasmaDataObject dataObject, long sequenceNum, org.plasma.sdo.PlasmaProperty property)
byte[]	createColumnKey(org.plasma.sdo.PlasmaDataObject dataObject, long sequenceNum, org.plasma.sdo.PlasmaProperty property, EdgeMetaKey metaField)
byte[]	createColumnKey(org.plasma.sdo.PlasmaType type, long sequenceNum, EdgeMetaKey metaField)
byte[]	createColumnKey(org.plasma.sdo.PlasmaType type, long sequenceNum, EntityMetaKey metaField)
byte[]	createColumnKey(org.plasma.sdo.PlasmaType type, long dataObjectSeqNum, org.plasma.sdo.PlasmaProperty property)
byte[]	createColumnKey(org.plasma.sdo.PlasmaType type, long sequenceNum, org.plasma.sdo.PlasmaProperty property, EdgeMetaKey metaField)
byte[]	createColumnKey(org.plasma.sdo.PlasmaType type, long sequenceNum, org.plasma.sdo.PlasmaProperty property, EntityMetaKey metaField)
byte[]	createColumnKeyMetadataPrefix(org.plasma.sdo.PlasmaType type, long sequenceNum, org.plasma.sdo.PlasmaProperty property)

Methods inherited from class org.cloudgraph.hbase.key.CompositeColumnKeyFactory

addColumnKeyFields, addColumnKeyFields, addColumnKeyFields, createColumnKey, createColumnKey, createColumnKey, createColumnKey, createColumnKey

Methods inherited from class org.cloudgraph.hbase.key.ByteBufferKeyFactory

getBuf, getGraph, getRootType, getTable

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.cloudgraph.store.key.GraphColumnKeyFactory

createColumnKey, createColumnKey, createColumnKey, createColumnKey, createColumnKey

Constructor Detail

StatefullColumnKeyFactory

public StatefullColumnKeyFactory(org.plasma.sdo.PlasmaType rootType,
                                 StoreMappingContext mappingContext)

StatefullColumnKeyFactory

public StatefullColumnKeyFactory(RowOperation graphRow)

Method Detail

createColumnKey

public byte[] createColumnKey(org.plasma.sdo.PlasmaDataObject dataObject,
                              long sequenceNum,
                              org.plasma.sdo.PlasmaProperty property)

Specified by:

createColumnKey in interface GraphStatefullColumnKeyFactory

createColumnKey

public byte[] createColumnKey(org.plasma.sdo.PlasmaDataObject dataObject,
                              long sequenceNum,
                              org.plasma.sdo.PlasmaProperty property,
                              EdgeMetaKey metaField)

Specified by:

createColumnKey in interface GraphStatefullColumnKeyFactory

createColumnKey

public byte[] createColumnKey(org.plasma.sdo.PlasmaType type,
                              long sequenceNum,
                              org.plasma.sdo.PlasmaProperty property,
                              EdgeMetaKey metaField)

Specified by:

createColumnKey in interface GraphStatefullColumnKeyFactory

createColumnKey

public byte[] createColumnKey(org.plasma.sdo.PlasmaType type,
                              long sequenceNum,
                              org.plasma.sdo.PlasmaProperty property,
                              EntityMetaKey metaField)

Specified by:

createColumnKey in interface GraphStatefullColumnKeyFactory

createColumnKey

public byte[] createColumnKey(org.plasma.sdo.PlasmaType type,
                              long sequenceNum,
                              EntityMetaKey metaField)

Specified by:

createColumnKey in interface GraphStatefullColumnKeyFactory

createColumnKey

public byte[] createColumnKey(org.plasma.sdo.PlasmaType type,
                              long dataObjectSeqNum,
                              org.plasma.sdo.PlasmaProperty property)

Specified by:

createColumnKey in interface GraphStatefullColumnKeyFactory

createColumnKey

public byte[] createColumnKey(org.plasma.sdo.PlasmaType type,
                              long sequenceNum,
                              EdgeMetaKey metaField)

Specified by:

createColumnKey in interface GraphStatefullColumnKeyFactory

createColumnKeyMetadataPrefix

public byte[] createColumnKeyMetadataPrefix(org.plasma.sdo.PlasmaType type,
                                            long sequenceNum,
                                            org.plasma.sdo.PlasmaProperty property)

Specified by:

createColumnKeyMetadataPrefix in interface GraphStatefullColumnKeyFactory