org.cloudgraph.hbase.service

Class GraphAssemblerFactory

java.lang.Object

org.cloudgraph.hbase.service.GraphAssemblerFactory

public class GraphAssemblerFactory
extends Object

Create a specific graph assembler based on the existence of selection path predicates found in the given collector. Since the reader hierarchy is initialized based entirely on metadata found in the selection graph, whether the persisted graph is distributed cannot be determined up front. DIstribution must be discovered dynamically during assembly. Therefore graph assemblers capable of handling a distributed graph are used on all cases.

Since:

1.0.7

Author:

Scott Cinnamond

Field Summary

Fields

Modifier and Type	Field and Description
protected StoreMappingContext	mappingContext

Constructor Summary

Constructors

Constructor and Description
GraphAssemblerFactory(org.plasma.query.model.Query query, org.plasma.sdo.PlasmaType type, DistributedReader graphReader, org.plasma.query.collector.Selection selection, Timestamp snapshotDate, StoreMappingContext mappingContext)

Method Summary

Modifier and Type	Method and Description
HBaseGraphAssembler	createAssembler()

Methods inherited from class java.lang.Object

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

Field Detail

mappingContext

protected StoreMappingContext mappingContext

Constructor Detail

GraphAssemblerFactory

public GraphAssemblerFactory(org.plasma.query.model.Query query,
                             org.plasma.sdo.PlasmaType type,
                             DistributedReader graphReader,
                             org.plasma.query.collector.Selection selection,
                             Timestamp snapshotDate,
                             StoreMappingContext mappingContext)

Method Detail

createAssembler

public HBaseGraphAssembler createAssembler()