com.orientechnologies.orient.core.sql.executor

Class ProjectionCalculationStep

java.lang.Object

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

com.orientechnologies.orient.core.sql.executor.ProjectionCalculationStep

All Implemented Interfaces:

OExecutionStep, OExecutionStepInternal

Direct Known Subclasses:

AggregateProjectionCalculationStep

public class ProjectionCalculationStep
extends AbstractExecutionStep

Created by luigidellaquila on 12/07/16.

Field Summary

Fields

Modifier and Type	Field and Description
protected long	cost
protected OProjection	projection

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

ctx, next, prev, profilingEnabled, timedOut

Constructor Summary

Constructors

Constructor and Description
ProjectionCalculationStep(OProjection projection, OCommandContext ctx, boolean profilingEnabled)

Method Summary

Modifier and Type	Method and Description
boolean	canBeCached()
OExecutionStep	copy(OCommandContext ctx)
long	getCost() returns the absolute cost (in nanoseconds) of the execution of this step
String	prettyPrint(int depth, int indent)
OResultSet	syncPull(OCommandContext ctx, int nRecords)

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

close, getContext, getCostFormatted, getNext, getPrev, isProfilingEnabled, sendTimeout, setNext, setPrevious, setProfilingEnabled

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

basicDeserialize, basicSerialize, deserialize, getDescription, getIndent, getName, getSubExecutionPlans, getSubSteps, getTargetNode, getType, reset, serialize

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

toResult

Field Detail

projection

protected final OProjection projection

cost

protected long cost

Constructor Detail

ProjectionCalculationStep

public ProjectionCalculationStep(OProjection projection,
                                 OCommandContext ctx,
                                 boolean profilingEnabled)

Method Detail

syncPull

public OResultSet syncPull(OCommandContext ctx,
                           int nRecords)
                    throws OTimeoutException

Throws:

OTimeoutException

prettyPrint

public String prettyPrint(int depth,
                          int indent)

getCost

public long getCost()

Description copied from interface: OExecutionStep

returns the absolute cost (in nanoseconds) of the execution of this step

Returns:

the absolute cost (in nanoseconds) of the execution of this step, -1 if not calculated

canBeCached

public boolean canBeCached()

copy

public OExecutionStep copy(OCommandContext ctx)