Package com.arcadedb.query.sql.executor

Class CountFromIndexStep

java.lang.Object

com.arcadedb.query.sql.executor.AbstractExecutionStep

com.arcadedb.query.sql.executor.CountFromIndexStep

All Implemented Interfaces:

ExecutionStep, ExecutionStepInternal

public class CountFromIndexStep
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.arcadedb.query.sql.executor.AbstractExecutionStep

ctx, next, prev, profilingEnabled, timedOut

Constructor Summary

Constructors

Constructor	Description
CountFromIndexStep(IndexIdentifier targetIndex, String alias, CommandContext ctx, boolean profilingEnabled)

Method Summary

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

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

close, getContext, getCostFormatted, getNext, getPrev, isProfilingEnabled, isTimedOut, sendTimeout, setNext, setPrevious, setProfilingEnabled

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

getCost, toResult

Methods inherited from interface com.arcadedb.query.sql.executor.ExecutionStepInternal

canBeCached, copy, deserialize, getDescription, getName, getSubExecutionPlans, getSubSteps, getTargetNode, getType, serialize

Constructor Detail

CountFromIndexStep

public CountFromIndexStep(IndexIdentifier targetIndex,
                          String alias,
                          CommandContext ctx,
                          boolean profilingEnabled)

Parameters:

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

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

ctx - the query context

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

Method Detail

syncPull

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

Throws:

TimeoutException

reset

public void reset()

prettyPrint

public String prettyPrint(int depth,
                          int indent)