Package com.arcadedb.query.sql.executor

Class FetchFromClustersExecutionStep

java.lang.Object

com.arcadedb.query.sql.executor.AbstractExecutionStep

com.arcadedb.query.sql.executor.FetchFromClustersExecutionStep

All Implemented Interfaces:

ExecutionStep, ExecutionStepInternal

public class FetchFromClustersExecutionStep
extends AbstractExecutionStep

Created by luigidellaquila on 21/07/16.

Field Summary

Fields inherited from class com.arcadedb.query.sql.executor.AbstractExecutionStep

context, cost, DEFAULT_FETCH_RECORDS_PER_PULL, prev, timedOut

Constructor Summary

Constructors

Constructor	Description
FetchFromClustersExecutionStep(int[] bucketIds, CommandContext context, Boolean ridOrder)	iterates over a class and its subTypes

Method Summary

Modifier and Type	Method	Description
void	close()
long	getCost()	returns the absolute cost (in nanoseconds) of the execution of this step
List<ExecutionStep>	getSubSteps()
String	prettyPrint(int depth, int indent)
void	sendTimeout()
ResultSet	syncPull(CommandContext context, int nRecords)

Methods inherited from class com.arcadedb.query.sql.executor.AbstractExecutionStep

checkForPrevious, checkForPrevious, getContext, getCostFormatted, getPrev, isTimedOut, pullPrevious, setPrevious

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.arcadedb.query.sql.executor.ExecutionStep

toResult

Methods inherited from interface com.arcadedb.query.sql.executor.ExecutionStepInternal

canBeCached, copy, getDescription, getName, getSubExecutionPlans, getType, reset

Constructor Detail

FetchFromClustersExecutionStep

public FetchFromClustersExecutionStep(int[] bucketIds,
                                      CommandContext context,
                                      Boolean ridOrder)

iterates over a class and its subTypes

Parameters:

bucketIds - the clusters

context - the query context

ridOrder - true to sort by RID asc, false to sort by RID desc, null for no sort.

Method Detail

syncPull

public ResultSet syncPull(CommandContext context,
                          int nRecords)
                   throws TimeoutException

Throws:

TimeoutException

sendTimeout

public void sendTimeout()

Specified by:

sendTimeout in interface ExecutionStepInternal

Overrides:

sendTimeout in class AbstractExecutionStep

close

public void close()

Specified by:

close in interface ExecutionStepInternal

Overrides:

close in class AbstractExecutionStep

prettyPrint

public String prettyPrint(int depth,
                          int indent)

getSubSteps

public List<ExecutionStep> getSubSteps()

getCost

public long getCost()

Description copied from interface: ExecutionStep

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

Specified by:

getCost in interface ExecutionStep

Overrides:

getCost in class AbstractExecutionStep

Returns:

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