org.cloudgraph.hbase.key

Class CompositeColumnKeyFactory

java.lang.Object

org.cloudgraph.hbase.key.ByteBufferKeyFactory

org.cloudgraph.hbase.key.CompositeColumnKeyFactory

All Implemented Interfaces:

ConfigurableKeyFactory, GraphColumnKeyFactory

Direct Known Subclasses:

StatefullColumnKeyFactory

public class CompositeColumnKeyFactory
extends ByteBufferKeyFactory
implements GraphColumnKeyFactory

Creates 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

Field Summary

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

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

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
protected void	addColumnKeyFields(org.plasma.sdo.PlasmaType type, EdgeMetaKey metaField)
protected void	addColumnKeyFields(org.plasma.sdo.PlasmaType type, EntityMetaKey metaField)
protected void	addColumnKeyFields(org.plasma.sdo.PlasmaType type, org.plasma.sdo.PlasmaProperty property)
byte[]	createColumnKey(org.plasma.sdo.PlasmaType type, EdgeMetaKey metaField)
byte[]	createColumnKey(org.plasma.sdo.PlasmaType type, EntityMetaKey metaField)
byte[]	createColumnKey(org.plasma.sdo.PlasmaType type, org.plasma.sdo.PlasmaProperty property)
byte[]	createColumnKey(org.plasma.sdo.PlasmaType type, org.plasma.sdo.PlasmaProperty property, EdgeMetaKey metaField)
byte[]	createColumnKey(org.plasma.sdo.PlasmaType type, org.plasma.sdo.PlasmaProperty property, EntityMetaKey metaField)

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

Constructor Detail

CompositeColumnKeyFactory

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

CompositeColumnKeyFactory

public CompositeColumnKeyFactory(RowOperation graphRow)

Method Detail

createColumnKey

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

Specified by:

createColumnKey in interface GraphColumnKeyFactory

createColumnKey

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

Specified by:

createColumnKey in interface GraphColumnKeyFactory

createColumnKey

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

Specified by:

createColumnKey in interface GraphColumnKeyFactory

createColumnKey

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

Specified by:

createColumnKey in interface GraphColumnKeyFactory

createColumnKey

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

Specified by:

createColumnKey in interface GraphColumnKeyFactory

addColumnKeyFields

protected void addColumnKeyFields(org.plasma.sdo.PlasmaType type,
                                  EntityMetaKey metaField)

addColumnKeyFields

protected void addColumnKeyFields(org.plasma.sdo.PlasmaType type,
                                  EdgeMetaKey metaField)

addColumnKeyFields

protected void addColumnKeyFields(org.plasma.sdo.PlasmaType type,
                                  org.plasma.sdo.PlasmaProperty property)