Package com.arcadedb.query.sql.executor

Class CopyDocumentStep

java.lang.Object

com.arcadedb.query.sql.executor.AbstractExecutionStep

com.arcadedb.query.sql.executor.CopyDocumentStep

All Implemented Interfaces:

ExecutionStep, ExecutionStepInternal

public class CopyDocumentStep
extends AbstractExecutionStep

Reads an upstream result set and returns a new result set that contains copies of the original OResult instances

This is mainly used from statements that need to copy of the original data to save it somewhere else, eg. INSERT ... FROM SELECT

Author:

Luigi Dell'Aquila (luigi.dellaquila-(at)-gmail.com)

Field Summary

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

ctx, next, prev, profilingEnabled, timedOut

Constructor Summary

Constructors

Constructor	Description
CopyDocumentStep(CommandContext ctx, String targetType, boolean profilingEnabled)

Method Summary

Modifier and Type	Method	Description
long	getCost()	returns the absolute cost (in nanoseconds) of the execution of this step
String	prettyPrint(int depth, int indent)
ResultSet	syncPull(CommandContext ctx, int nRecords)

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

close, getContext, getCostFormatted, getNext, getPrev, isProfilingEnabled, isTimedOut, 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.arcadedb.query.sql.executor.ExecutionStep

toResult

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

canBeCached, copy, deserialize, getDescription, getName, getSubExecutionPlans, getSubSteps, getTargetNode, getType, reset, serialize

Constructor Detail

CopyDocumentStep

public CopyDocumentStep(CommandContext ctx,
                        String targetType,
                        boolean profilingEnabled)

Method Detail

syncPull

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

Throws:

TimeoutException

prettyPrint

public String prettyPrint(int depth,
                          int indent)

getCost

public long getCost()

Description copied from interface: ExecutionStep

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