org.openanzo.common.rdb.container.query
Class RdbEngineConfig

java.lang.Object
  org.openanzo.glitter.DefaultEngineConfig
      org.openanzo.model.impl.query.CoreEngineConfig
          org.openanzo.common.rdb.container.query.RdbEngineConfig

All Implemented Interfaces:

EngineConfig

public class RdbEngineConfig
extends CoreEngineConfig

RdbEngineConfig is the Glitter EngineConfig for queries against an RDB Container. It uses the QueryOptimizer query execution plan in order to determine extra vs regular triple patterns.

Author:

Matthew Roy ( mroy@cambridgesemantics.com )

Constructor Summary

RdbEngineConfig()
Create a new RdbEngineConfig, and initialize the factory and special predicates.

Method Summary

java.lang.Class<QueryOptimizer>	getQueryExecutionPlan()
RdbSolutionGeneratorFactory	getRdbSolutionGeneratorFactory() Get the RdbSolutionGeneratorFactory from this config
SolutionGeneratorFactory	getSolutionGeneratorFactory()

Methods inherited from class org.openanzo.model.impl.query.CoreEngineConfig

getDatasetClass, getFunctionalPredicates, getQueryValidators, getTreeRewriters, includeInferredTriples, registerFunctionalPredicate, setIncludeInferredTriples

Methods inherited from class org.openanzo.glitter.DefaultEngineConfig

allowNaryUnion, substituteFixedBindings

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.openanzo.glitter.EngineConfig

allowNaryUnion, substituteFixedBindings

Constructor Detail

RdbEngineConfig

public RdbEngineConfig()

Create a new RdbEngineConfig, and initialize the factory and special predicates.

Method Detail

getRdbSolutionGeneratorFactory

public RdbSolutionGeneratorFactory getRdbSolutionGeneratorFactory()

Get the RdbSolutionGeneratorFactory from this config

Returns:

the RdbSolutionGeneratorFactory from this config

getQueryExecutionPlan

public java.lang.Class<QueryOptimizer> getQueryExecutionPlan()

Specified by:

getQueryExecutionPlan in interface EngineConfig

Overrides:

getQueryExecutionPlan in class CoreEngineConfig

Returns:

The QueryExecutionPlan class to use for putting together a plan of access for executing the query.

getSolutionGeneratorFactory

public SolutionGeneratorFactory getSolutionGeneratorFactory()

Returns:

A SolutionGeneratorFactory that can produce SolutionGenerators for the Glitter engine.