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

Class CheckClusterTypeStep

java.lang.Object

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

com.orientechnologies.orient.core.sql.executor.CheckClusterTypeStep

All Implemented Interfaces:

OExecutionStepInternal

public class CheckClusterTypeStep
extends AbstractExecutionStep

This step is used just as a gate check to verify that a cluster belongs to a class.

It accepts two values: a target cluster (name or OCluster) and a class. If the cluster belongs to the class, then the syncPool() returns an empty result set, otherwise it throws an OCommandExecutionException

Author:

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

Field Summary

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

prev

Constructor Summary

Constructors

Constructor	Description
CheckClusterTypeStep(OCluster targetCluster, String clazz)
CheckClusterTypeStep(String targetClusterName, String clazz)

Method Summary

Modifier and Type	Method	Description
OExecutionStream	internalStart(OCommandContext context)
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

CheckClusterTypeStep

public CheckClusterTypeStep(String targetClusterName,
 String clazz)

CheckClusterTypeStep

public CheckClusterTypeStep(OCluster targetCluster,
 String clazz)

Method Details

internalStart

public OExecutionStream internalStart(OCommandContext context)
                               throws OTimeoutException

Specified by:

internalStart in class AbstractExecutionStep

Throws:

OTimeoutException

prettyPrint

public String prettyPrint(OPrintContext ctx)