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

Class CountStep

java.lang.Object

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

com.orientechnologies.orient.core.sql.executor.CountStep

All Implemented Interfaces:

OExecutionStepInternal

public class CountStep
extends AbstractExecutionStep

Counts the records from the previous steps. Returns a record with a single property, called "count" containing the count of records received from pervious steps

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
CountStep()

Method Summary

Modifier and Type	Method	Description
boolean	canBeCached()
OExecutionStepInternal	copy(OCommandContext ctx)
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

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

Constructor Details

CountStep

public CountStep()

Method Details

internalStart

public OExecutionStream internalStart(OCommandContext ctx)
                               throws OTimeoutException

Specified by:

internalStart in class AbstractExecutionStep

Throws:

OTimeoutException

prettyPrint

public String prettyPrint(OPrintContext ctx)

canBeCached

public boolean canBeCached()

copy

public OExecutionStepInternal copy(OCommandContext ctx)