CheckSafeDeleteStep (arcadedb-engine 22.1.2 API)

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

All Implemented Interfaces:

ExecutionStep, ExecutionStepInternal
```
public class CheckSafeDeleteStep
extends AbstractExecutionStep
```
Checks if a record can be safely deleted (throws PCommandExecutionException in case). A record cannot be safely deleted if it's a vertex or an edge (it requires additional operations).

The result set returned by syncPull() throws an PCommandExecutionException as soon as it finds a record that cannot be safely deleted (eg. a vertex or an edge)

This step is used used in DELETE statement to make sure that you are not deleting vertices or edges without passing for an explicit DELETE VERTEX/EDGE

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

CheckSafeDeleteStep(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

CheckSafeDeleteStep

public CheckSafeDeleteStep(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