alluxio.cli.table.command

Class DetachDatabaseCommand

java.lang.Object

alluxio.cli.table.command.AbstractTableCommand

alluxio.cli.table.command.DetachDatabaseCommand

All Implemented Interfaces:

Command

public class DetachDatabaseCommand
extends AbstractTableCommand

This command removes a database from the table master. After calling this, the database and all table metadata is removed. To regain access to this table, the corresponding AttachDatabaseCommand will need to be called again.

Field Summary

Fields inherited from class alluxio.cli.table.command.AbstractTableCommand

mClient, mConf

Constructor Summary

Constructors

Constructor and Description
DetachDatabaseCommand(AlluxioConfiguration conf, TableMasterClient client) Creates a new instance of DetachDatabaseCommand.

Method Summary

Modifier and Type	Method and Description
String	getCommandName() Gets the command name as input from the shell.
String	getDescription()
String	getUsage()
int	run(org.apache.commons.cli.CommandLine cli) Runs the command.
void	validateArgs(org.apache.commons.cli.CommandLine cli) Checks if the arguments are valid or throw InvalidArgumentException.

Methods inherited from class java.lang.Object

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

Methods inherited from interface alluxio.cli.Command

getOptions, getSubCommands, hasSubCommand, parseAndValidateArgs

Constructor Detail

DetachDatabaseCommand

public DetachDatabaseCommand(AlluxioConfiguration conf,
                             TableMasterClient client)

Creates a new instance of DetachDatabaseCommand.

Parameters:

conf - alluxio configuration

client - the table master client

Method Detail

validateArgs

public void validateArgs(org.apache.commons.cli.CommandLine cli)
                  throws InvalidArgumentException

Description copied from interface: Command

Checks if the arguments are valid or throw InvalidArgumentException.

Specified by:

validateArgs in interface Command

Specified by:

validateArgs in class AbstractTableCommand

Parameters:

cli - the parsed command line for the arguments

Throws:

InvalidArgumentException - when arguments are not valid

getCommandName

public String getCommandName()

Description copied from interface: Command

Gets the command name as input from the shell.

Specified by:

getCommandName in interface Command

Specified by:

getCommandName in class AbstractTableCommand

Returns:

the command name

getUsage

public String getUsage()

Returns:

the usage information of the command

getDescription

public String getDescription()

Returns:

the description information of the command

run

public int run(org.apache.commons.cli.CommandLine cli)
        throws AlluxioStatusException

Description copied from interface: Command

Runs the command.

Specified by:

run in interface Command

Specified by:

run in class AbstractTableCommand

Parameters:

cli - the parsed command line for the arguments

Returns:

the result of running the command

Throws:

AlluxioStatusException