Package com.orientechnologies.orient.core.sql.executor

Class SubQueryStep

java.lang.Object

com.orientechnologies.orient.core.sql.executor.AbstractExecutionStep

com.orientechnologies.orient.core.sql.executor.SubQueryStep

All Implemented Interfaces:

OExecutionStepInternal

public class SubQueryStep
extends AbstractExecutionStep

Created by luigidellaquila on 22/07/16.

Field Summary

Fields inherited from class com.orientechnologies.orient.core.sql.executor.AbstractExecutionStep

prev

Constructor Summary

Constructors

Constructor	Description
SubQueryStep(OInternalExecutionPlan subExecutionPlan, OCommandContext ctx, OCommandContext subCtx)	executes a sub-query

Method Summary

Modifier and Type	Method	Description
boolean	canBeCached()
OExecutionStepInternal	copy(OCommandContext ctx)
OExecutionStream	internalStart(OCommandContext ctx)
String	prettyPrint(OPrintContext ctx)

Methods inherited from class com.orientechnologies.orient.core.sql.executor.AbstractExecutionStep

getPrev, setPrevious, start

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.orientechnologies.orient.core.sql.executor.OExecutionStepInternal

deserialize, getName, getSubExecutionPlans, getSubSteps, getTargetNode, getType, serialize, serializeToResult, toResult, toResult

Constructor Details

SubQueryStep

public SubQueryStep(OInternalExecutionPlan subExecutionPlan,
 OCommandContext ctx,
 OCommandContext subCtx)

executes a sub-query

Parameters:

subExecutionPlan - the execution plan of the sub-query

ctx - the context of the current execution plan

subCtx - the context of the subquery execution plan

Method Details

internalStart

public OExecutionStream internalStart(OCommandContext ctx)
                               throws OTimeoutException

Specified by:

internalStart in class AbstractExecutionStep

Throws:

OTimeoutException

prettyPrint

public String prettyPrint(OPrintContext ctx)

canBeCached

public boolean canBeCached()

copy

public OExecutionStepInternal copy(OCommandContext ctx)