Package edu.caltech.nanodb.commands

Class ShowSystemStatsCommand

java.lang.Object

edu.caltech.nanodb.commands.Command

edu.caltech.nanodb.commands.ShowSystemStatsCommand

public class ShowSystemStatsCommand
extends Command

Implements the "SHOW [system] STATS" command.

Nested Class Summary

Nested classes/interfaces inherited from class edu.caltech.nanodb.commands.Command

Command.Type

Field Summary

Fields

Modifier and Type	Field	Description
private static java.lang.String[][]	PERF_COUNTERS	These are the performance counters corresponding to various subsystems.
static java.lang.String	STORAGE_SYSTEM
private java.lang.String	systemName	The subsystem that we are displaying statistics for.

Fields inherited from class edu.caltech.nanodb.commands.Command

out

Constructor Summary

Constructors

Constructor	Description
ShowSystemStatsCommand(java.lang.String systemName)

Method Summary

Modifier and Type	Method	Description
void	execute(NanoDBServer server)	Actually performs the command.

Methods inherited from class edu.caltech.nanodb.commands.Command

getCommandType

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

STORAGE_SYSTEM

public static final java.lang.String STORAGE_SYSTEM

See Also:

Constant Field Values

systemName

private java.lang.String systemName

The subsystem that we are displaying statistics for.

PERF_COUNTERS

private static final java.lang.String[][] PERF_COUNTERS

These are the performance counters corresponding to various subsystems.

Constructor Detail

ShowSystemStatsCommand

public ShowSystemStatsCommand(java.lang.String systemName)

Method Detail

execute

public void execute(NanoDBServer server)
             throws ExecutionException

Description copied from class: Command

Actually performs the command.

Specified by:

execute in class Command

Throws:

ExecutionException - if an issue occurs during command execution