CopyRecordContentBeforeUpdateStep (arcadedb-engine 22.1.2 API)

java.lang.Object
- com.arcadedb.query.sql.executor.AbstractExecutionStep
- - com.arcadedb.query.sql.executor.CopyRecordContentBeforeUpdateStep

All Implemented Interfaces:

ExecutionStep, ExecutionStepInternal
```
public class CopyRecordContentBeforeUpdateStep
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 before modifying it, eg. UPDATE ... RETURN BEFORE

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

CopyRecordContentBeforeUpdateStep(CommandContext ctx, boolean profilingEnabled)

Method Summary

All Methods Instance Methods Concrete Methods
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

CopyRecordContentBeforeUpdateStep

public CopyRecordContentBeforeUpdateStep(CommandContext ctx,
                                         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