org.apache.hadoop.fs.shell

类 Count

java.lang.Object

org.apache.hadoop.conf.Configured

org.apache.hadoop.fs.shell.Command

org.apache.hadoop.fs.shell.Count

所有已实现的接口:

Configurable

public class Count
extends Command

Count the number of directories, files, bytes, quota, and remaining quota.

字段概要

字段

限定符和类型	字段和说明
static String	DESCRIPTION
static String	NAME
static String	USAGE

从类继承的字段 org.apache.hadoop.fs.shell.Command

args

构造器概要

构造器

构造器和说明
Count(String[] cmd, int pos, Configuration conf) Constructor

方法概要

方法

限定符和类型	方法和说明
String	getCommandName() Return the command's name excluding the leading character -
static boolean	matches(String cmd) Check if a command is the count command
protected void	run(Path path) Execute the command on the input path

从类继承的方法 org.apache.hadoop.fs.shell.Command

runAll

从类继承的方法 org.apache.hadoop.conf.Configured

getConf, setConf

从类继承的方法 java.lang.Object

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

字段详细资料

NAME

public static final String NAME

另请参阅:

常量字段值

USAGE

public static final String USAGE

另请参阅:

常量字段值

DESCRIPTION

public static final String DESCRIPTION

构造器详细资料

Count

public Count(String[] cmd,
     int pos,
     Configuration conf)

Constructor

参数:

cmd - the count command

pos - the starting index of the arguments

方法详细资料

matches

public static boolean matches(String cmd)

Check if a command is the count command

参数:

cmd - A string representation of a command starting with "-"

返回:

true if this is a count command; false otherwise

getCommandName

public String getCommandName()

从类复制的说明: Command

Return the command's name excluding the leading character -

指定者:

getCommandName 在类中 Command

run

protected void run(Path path)
            throws IOException

从类复制的说明: Command

Execute the command on the input path

指定者:

run 在类中 Command

参数:

path - the input path

抛出:

IOException - if any error occurs