Package com.arcadedb.query.sql.executor

Class CountFromTypeStep

java.lang.Object

com.arcadedb.query.sql.executor.AbstractExecutionStep

com.arcadedb.query.sql.executor.CountFromTypeStep

All Implemented Interfaces:

ExecutionStep, ExecutionStepInternal

public class CountFromTypeStep
extends AbstractExecutionStep

Returns the number of records contained in a class (including subTypes) Executes a count(*) on a class and returns a single record that contains that value (with a specific alias).

Author:

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

Field Summary

Fields inherited from class com.arcadedb.query.sql.executor.AbstractExecutionStep

context, cost, DEFAULT_FETCH_RECORDS_PER_PULL, prev, profilingEnabled, timedOut

Constructor Summary

Constructors

Constructor	Description
CountFromTypeStep(String targetClass, String alias, CommandContext context, boolean profilingEnabled)

Method Summary

Modifier and Type	Method	Description
String	prettyPrint(int depth, int indent)
void	reset()
ResultSet	syncPull(CommandContext context, int nRecords)

Methods inherited from class com.arcadedb.query.sql.executor.AbstractExecutionStep

checkForPrevious, checkForPrevious, close, getContext, getCost, getCostFormatted, getPrev, isTimedOut, pullPrevious, sendTimeout, setPrevious

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, getDescription, getName, getSubExecutionPlans, getSubSteps, getType

Constructor Detail

CountFromTypeStep

public CountFromTypeStep(String targetClass,
                         String alias,
                         CommandContext context,
                         boolean profilingEnabled)

Parameters:

targetClass - An identifier containing the name of the class to count

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

context - the query context

profilingEnabled - true to enable the profiling of the execution (for SQL PROFILE)

Method Detail

syncPull

public ResultSet syncPull(CommandContext context,
                          int nRecords)
                   throws TimeoutException

Throws:

TimeoutException

reset

public void reset()

prettyPrint

public String prettyPrint(int depth,
                          int indent)