Class QueryProcContextBuilder

java.lang.Object

se.liu.ida.hefquin.engine.queryproc.QueryProcContextBuilder

public class QueryProcContextBuilder
extends Object

Such a builder can be used to create a customizable QueryProcContext object that provides access to components and options to be used by the query-processing components of HeFQUIN.

The typical way to create such a builder is to use the HeFQUINEngine.getQueryProcContextBuilder() function.

The builder can be used multiple times (i.e., to created multiple QueryProcContext objects), and the QueryProcContext objects that it creates can also be used multiple times (i.e., for processing multiple queries).

Field Summary

Fields

Modifier and Type	Field	Description
protected ExecutablePlanPrinter	eplanPrinter
protected final ExecutorService	execServiceForPlanTasks
protected final FederationAccessManager	fedAccMgr
protected final FederationCatalog	fedCatalog
protected boolean	isExperimentRun
protected LogicalPlanPrinter	lplanPrinter
protected PhysicalPlanPrinter	pplanPrinter
protected boolean	skipExecution
protected LogicalPlanPrinter	srcasgPrinter

Constructor Summary

Constructors

Constructor	Description
QueryProcContextBuilder(FederationCatalog fedCatalog, FederationAccessManager fedAccMgr, ExecutorService execServiceForPlanTasks)

Method Summary

Modifier and Type	Method	Description
QueryProcContext	build()
QueryProcContextBuilder	setExecutablePlanPrinter(ExecutablePlanPrinter p)	Sets the executable-plan printer to be used within the query processing context.
QueryProcContextBuilder	setIsExperimentRun(boolean set)
QueryProcContextBuilder	setLogicalPlanPrinter(LogicalPlanPrinter p)	Sets the logical-plan printer to be used within the query processing context.
QueryProcContextBuilder	setPhysicalPlanPrinter(PhysicalPlanPrinter p)	Sets the physical-plan printer to be used within the query processing context.
QueryProcContextBuilder	setSkipExecution(boolean set)
QueryProcContextBuilder	setSourceAssignmentPrinter(LogicalPlanPrinter p)	Sets the source assignment printer to be used within the query processing context.

Methods inherited from class java.lang.Object

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

Field Details

fedCatalog

protected final FederationCatalog fedCatalog

fedAccMgr

protected final FederationAccessManager fedAccMgr

execServiceForPlanTasks

protected final ExecutorService execServiceForPlanTasks

srcasgPrinter

protected LogicalPlanPrinter srcasgPrinter

lplanPrinter

protected LogicalPlanPrinter lplanPrinter

pplanPrinter

protected PhysicalPlanPrinter pplanPrinter

eplanPrinter

protected ExecutablePlanPrinter eplanPrinter

isExperimentRun

protected boolean isExperimentRun

skipExecution

protected boolean skipExecution

Constructor Details

QueryProcContextBuilder

public QueryProcContextBuilder(FederationCatalog fedCatalog,
 FederationAccessManager fedAccMgr,
 ExecutorService execServiceForPlanTasks)

Method Details

setSourceAssignmentPrinter

public QueryProcContextBuilder setSourceAssignmentPrinter(LogicalPlanPrinter p)

Sets the source assignment printer to be used within the query processing context.

Parameters:

p - - a logical-plan printer to be used for printing a source assignment that is the input to logical plan optimization; this argument may be null, which means that source assignment printing will be skipped in the created query processing context (for this case, it is also possible to omit calling this method at all)

Returns:

this builder instance for method chaining

setLogicalPlanPrinter

public QueryProcContextBuilder setLogicalPlanPrinter(LogicalPlanPrinter p)

Sets the logical-plan printer to be used within the query processing context.

Parameters:

p - - a logical-plan printer to be used for printing the logical plan after logical plan optimization; this argument may be null, which means that logical-plan printing will be skipped in the created query processing context (for this case, it is also possible to omit calling this method at all)

Returns:

this builder instance for method chaining

setPhysicalPlanPrinter

public QueryProcContextBuilder setPhysicalPlanPrinter(PhysicalPlanPrinter p)

Sets the physical-plan printer to be used within the query processing context.

Parameters:

p - - a physical-plan printer to be used for printing the physical plan after physical plan optimization; this argument may be null, which means that physical-plan printing will be skipped in the created query processing context (for this case, it is also possible to omit calling this method at all)

Returns:

this builder instance for method chaining

setExecutablePlanPrinter

public QueryProcContextBuilder setExecutablePlanPrinter(ExecutablePlanPrinter p)

Sets the executable-plan printer to be used within the query processing context.

Parameters:

p - - an executable-plan printer to be used for printing the executable plan before executing it; this argument may be null, which means that executable-plan printing will be skipped in the created query processing context (for this case, it is also possible to omit calling this method at all)

Returns:

this builder instance for method chaining

setIsExperimentRun

public QueryProcContextBuilder setIsExperimentRun(boolean set)

setSkipExecution

public QueryProcContextBuilder setSkipExecution(boolean set)

build

public QueryProcContext build()