Class ExecutionContextImpl

java.lang.Object

se.liu.ida.hefquin.engine.queryproc.impl.ExecutionContextImpl

All Implemented Interfaces:

ExecutionContext, QueryProcContext

public class ExecutionContextImpl
extends Object
implements ExecutionContext

Field Summary

Fields

Modifier and Type	Field	Description
protected final ExecutorService	execServiceForPlanTasks
protected final FederationAccessManager	fedAccMgr
protected final FederationCatalog	fedCatalog
protected final boolean	isExperimentRun
protected final boolean	skipExecution

Constructor Summary

Constructors

Constructor	Description
ExecutionContextImpl(FederationAccessManager fedAccMgr, FederationCatalog fedCatalog, ExecutorService execServiceForPlanTasks, boolean isExperimentRun, boolean skipExecution)

Method Summary

Modifier and Type	Method	Description
ExecutorService	getExecutorServiceForPlanTasks()
FederationAccessManager	getFederationAccessMgr()
FederationCatalog	getFederationCatalog()
boolean	isExperimentRun()	Returns true if the query execution process is done as part of an experiment, in which case additional statistics need to be produced.
boolean	skipExecution()	Returns true if the user requested to skip the actual query execution.

Methods inherited from class java.lang.Object

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

Field Details

fedAccMgr

protected final FederationAccessManager fedAccMgr

fedCatalog

protected final FederationCatalog fedCatalog

execServiceForPlanTasks

protected final ExecutorService execServiceForPlanTasks

isExperimentRun

protected final boolean isExperimentRun

skipExecution

protected final boolean skipExecution

Constructor Details

ExecutionContextImpl

public ExecutionContextImpl(FederationAccessManager fedAccMgr,
 FederationCatalog fedCatalog,
 ExecutorService execServiceForPlanTasks,
 boolean isExperimentRun,
 boolean skipExecution)

Method Details

getFederationAccessMgr

public FederationAccessManager getFederationAccessMgr()

Specified by:

getFederationAccessMgr in interface QueryProcContext

getFederationCatalog

public FederationCatalog getFederationCatalog()

Specified by:

getFederationCatalog in interface QueryProcContext

getExecutorServiceForPlanTasks

public ExecutorService getExecutorServiceForPlanTasks()

Specified by:

getExecutorServiceForPlanTasks in interface QueryProcContext

isExperimentRun

public boolean isExperimentRun()

Description copied from interface: QueryProcContext

Returns true if the query execution process is done as part of an experiment, in which case additional statistics need to be produced.

Specified by:

isExperimentRun in interface QueryProcContext

skipExecution

public boolean skipExecution()

Description copied from interface: QueryProcContext

Returns true if the user requested to skip the actual query execution. In this case, the query processor can stop after query planning.

Specified by:

skipExecution in interface QueryProcContext