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

Class CountFromIndexWithKeyStep

java.lang.Object

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

com.orientechnologies.orient.core.sql.executor.CountFromIndexWithKeyStep

All Implemented Interfaces:

OExecutionStepInternal

public class CountFromIndexWithKeyStep
extends AbstractExecutionStep

Returns the number of records contained in an index

Author:

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

Field Summary

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

prev

Constructor Summary

Constructors

Constructor	Description
CountFromIndexWithKeyStep(OIndexIdentifier targetIndex, OExpression keyValue, String alias)

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

CountFromIndexWithKeyStep

public CountFromIndexWithKeyStep(OIndexIdentifier targetIndex,
 OExpression keyValue,
 String alias)

Parameters:

targetIndex - the index name as it is parsed by the SQL parsed

alias - the name of the property returned in the result-set

Method Details

internalStart

public OExecutionStream internalStart(OCommandContext ctx)
                               throws OTimeoutException

Specified by:

internalStart in class AbstractExecutionStep

Throws:

OTimeoutException

prettyPrint

public String prettyPrint(OPrintContext ctx)