Package com.orientechnologies.orient.core.sql.executor

Class CheckSafeDeleteStep

java.lang.Object

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

com.orientechnologies.orient.core.sql.executor.CheckSafeDeleteStep

All Implemented Interfaces:

OExecutionStepInternal

public class CheckSafeDeleteStep
extends AbstractExecutionStep

Checks if a record can be safely deleted (throws OCommandExecutionException 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 OCommandExecutionException 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 (l.dellaquila-(at)-orientdb.com)

Field Summary

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

prev

Constructor Summary

Constructors

Constructor	Description
CheckSafeDeleteStep()

Method Summary

Modifier and Type	Method	Description
OExecutionStream	internalStart(OCommandContext ctx)
String	prettyPrint(OPrintContext ctx)

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

getPrev, setPrevious, start

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

canBeCached, copy, deserialize, getName, getSubExecutionPlans, getSubSteps, getTargetNode, getType, serialize, serializeToResult, toResult, toResult

Constructor Details

CheckSafeDeleteStep

public CheckSafeDeleteStep()

Method Details

internalStart

public OExecutionStream internalStart(OCommandContext ctx)
                               throws OTimeoutException

Specified by:

internalStart in class AbstractExecutionStep

Throws:

OTimeoutException

prettyPrint

public String prettyPrint(OPrintContext ctx)