Package org.bukkit.command

Class Command

java.lang.Object

org.bukkit.command.Command

Direct Known Subclasses:

BukkitCommand, FormattedCommandAlias, MultipleCommandAlias, PluginCommand

public abstract class Command
extends Object

Represents a Command, which executes various tasks upon user input

Field Summary

Fields

Modifier and Type	Field	Description
protected String	description
CustomTimingsHandler	timings
protected String	usageMessage

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	Command(String name)
protected	Command(String name, String description, String usageMessage, List<String> aliases)

Method Summary

Modifier and Type	Method	Description
static void	broadcastCommandMessage(CommandSender source, String message)
static void	broadcastCommandMessage(CommandSender source, String message, boolean sendToSource)
abstract boolean	execute(CommandSender sender, String commandLabel, String[] args)	Executes the command, returning its success
List<String>	getAliases()	Returns a list of active aliases of this command
String	getDescription()	Gets a brief description of this command
String	getLabel()	Returns the label for this command
String	getName()	Returns the name of this command
String	getPermission()	Gets the permission required by users to be able to perform this command
String	getPermissionMessage()	Deprecated. permission messages have not worked for player-executed commands since 1.13 as clients without permission to execute a command are unaware of its existence and therefore will not send an unknown command execution to the server.
String	getUsage()	Gets an example usage of this command
boolean	isRegistered()	Returns the current registered state of this command
boolean	register(CommandMap commandMap)	Registers this command to a CommandMap.
Command	setAliases(List<String> aliases)	Sets the list of aliases to request on registration for this command.
Command	setDescription(String description)	Sets a brief description of this command.
boolean	setLabel(String name)	Sets the label of this command.
boolean	setName(String name)	Sets the name of this command.
void	setPermission(String permission)	Sets the permission required by users to be able to perform this command
Command	setPermissionMessage(String permissionMessage)	Deprecated. permission messages have not worked for player-executed commands since 1.13 as clients without permission to execute a command are unaware of its existence and therefore will not send an unknown command execution to the server.
Command	setUsage(String usage)	Sets the example usage of this command
List<String>	tabComplete(CommandSender sender, String alias, String[] args)	Executed on tab completion for this command, returning a list of options the player can tab through.
List<String>	tabComplete(CommandSender sender, String alias, String[] args, Location location)	Executed on tab completion for this command, returning a list of options the player can tab through.
boolean	testPermission(CommandSender target)	Tests the given CommandSender to see if they can perform this command.
boolean	testPermissionSilent(CommandSender target)	Tests the given CommandSender to see if they can perform this command.
String	toString()
boolean	unregister(CommandMap commandMap)	Unregisters this command from the passed CommandMap applying any outstanding changes

Methods inherited from class java.lang.Object

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

Field Details

description

protected String description

usageMessage

protected String usageMessage

timings

public CustomTimingsHandler timings

Constructor Details

Command

protected Command(@NotNull
 String name)

Command

protected Command(@NotNull
 String name,
 @NotNull
 String description,
 @NotNull
 String usageMessage,
 @NotNull
 List<String> aliases)

Method Details

execute

public abstract boolean execute(@NotNull
 CommandSender sender,
 @NotNull
 String commandLabel,
 @NotNull
 String[] args)

Executes the command, returning its success

Parameters:

sender - Source object which is executing this command

commandLabel - The alias of the command used

args - All arguments passed to the command, split via ' '

Returns:

true if the command was successful, otherwise false

tabComplete

@NotNull
public List<String> tabComplete(@NotNull
 CommandSender sender,
 @NotNull
 String alias,
 @NotNull
 String[] args)
                         throws IllegalArgumentException

Executed on tab completion for this command, returning a list of options the player can tab through.

Parameters:

sender - Source object which is executing this command

alias - the alias being used

args - All arguments passed to the command, split via ' '

Returns:

a list of tab-completions for the specified arguments. This will never be null. List may be immutable.

Throws:

IllegalArgumentException - if sender, alias, or args is null

tabComplete

@NotNull
public List<String> tabComplete(@NotNull
 CommandSender sender,
 @NotNull
 String alias,
 @NotNull
 String[] args,
 @Nullable
 Location location)
                         throws IllegalArgumentException

Executed on tab completion for this command, returning a list of options the player can tab through.

Parameters:

sender - Source object which is executing this command

alias - the alias being used

args - All arguments passed to the command, split via ' '

location - The position looked at by the sender, or null if none

Returns:

a list of tab-completions for the specified arguments. This will never be null. List may be immutable.

Throws:

IllegalArgumentException - if sender, alias, or args is null

getName

@NotNull
public String getName()

Returns the name of this command

Returns:

Name of this command

setName

public boolean setName(@NotNull
 String name)

Sets the name of this command.

May only be used before registering the command. Will return true if the new name is set, and false if the command has already been registered.

Parameters:

name - New command name

Returns:

returns true if the name change happened instantly or false if the command was already registered

getPermission

@Nullable
public String getPermission()

Gets the permission required by users to be able to perform this command

Returns:

Permission name, or null if none

setPermission

public void setPermission(@Nullable
 String permission)

Sets the permission required by users to be able to perform this command

Parameters:

permission - Permission name or null

testPermission

public boolean testPermission(@NotNull
 CommandSender target)

Tests the given CommandSender to see if they can perform this command.

If they do not have permission, they will be informed that they cannot do this.

Parameters:

target - User to test

Returns:

true if they can use it, otherwise false

testPermissionSilent

public boolean testPermissionSilent(@NotNull
 CommandSender target)

Tests the given CommandSender to see if they can perform this command.

No error is sent to the sender.

Parameters:

target - User to test

Returns:

true if they can use it, otherwise false

getLabel

@NotNull
public String getLabel()

Returns the label for this command

Returns:

Label of this command

setLabel

public boolean setLabel(@NotNull
 String name)

Sets the label of this command.

May only be used before registering the command. Will return true if the new name is set, and false if the command has already been registered.

Parameters:

name - The command's name

Returns:

returns true if the name change happened instantly or false if the command was already registered

register

public boolean register(@NotNull
 CommandMap commandMap)

Registers this command to a CommandMap. Once called it only allows changes the registered CommandMap

Parameters:

commandMap - the CommandMap to register this command to

Returns:

true if the registration was successful (the current registered CommandMap was the passed CommandMap or null) false otherwise

unregister

public boolean unregister(@NotNull
 CommandMap commandMap)

Unregisters this command from the passed CommandMap applying any outstanding changes

Parameters:

commandMap - the CommandMap to unregister

Returns:

true if the unregistration was successful (the current registered CommandMap was the passed CommandMap or null) false otherwise

isRegistered

public boolean isRegistered()

Returns the current registered state of this command

Returns:

true if this command is currently registered false otherwise

getAliases

@NotNull
public List<String> getAliases()

Returns a list of active aliases of this command

Returns:

List of aliases

getPermissionMessage

@Deprecated
@Nullable
public String getPermissionMessage()

Deprecated.

permission messages have not worked for player-executed commands since 1.13 as clients without permission to execute a command are unaware of its existence and therefore will not send an unknown command execution to the server. This message will only ever be shown to consoles or when this command is executed with Bukkit.dispatchCommand(CommandSender, String).

Returns a message to be displayed on a failed permission check for this command

Returns:

Permission check failed message

getDescription

@NotNull
public String getDescription()

Gets a brief description of this command

Returns:

Description of this command

getUsage

@NotNull
public String getUsage()

Gets an example usage of this command

Returns:

One or more example usages

setAliases

@NotNull
public Command setAliases(@NotNull
 List<String> aliases)

Sets the list of aliases to request on registration for this command. This is not effective outside of defining aliases in the PluginDescriptionFile.getCommands() (under the `aliases' node) is equivalent to this method.

Parameters:

aliases - aliases to register to this command

Returns:

this command object, for chaining

setDescription

@NotNull
public Command setDescription(@NotNull
 String description)

Sets a brief description of this command. Defining a description in the PluginDescriptionFile.getCommands() (under the `description' node) is equivalent to this method.

Parameters:

description - new command description

Returns:

this command object, for chaining

setPermissionMessage

@Deprecated
@NotNull
public Command setPermissionMessage(@Nullable
 String permissionMessage)

Deprecated.

permission messages have not worked for player-executed commands since 1.13 as clients without permission to execute a command are unaware of its existence and therefore will not send an unknown command execution to the server. This message will only ever be shown to consoles or when this command is executed with Bukkit.dispatchCommand(CommandSender, String).

Sets the message sent when a permission check fails

Parameters:

permissionMessage - new permission message, null to indicate default message, or an empty string to indicate no message

Returns:

this command object, for chaining

setUsage

@NotNull
public Command setUsage(@NotNull
 String usage)

Sets the example usage of this command

Parameters:

usage - new example usage

Returns:

this command object, for chaining

broadcastCommandMessage

public static void broadcastCommandMessage(@NotNull
 CommandSender source,
 @NotNull
 String message)

broadcastCommandMessage

public static void broadcastCommandMessage(@NotNull
 CommandSender source,
 @NotNull
 String message,
 boolean sendToSource)

toString

public String toString()

Overrides:

toString in class Object