org.apache.hadoop.io

类 WritableName

java.lang.Object

org.apache.hadoop.io.WritableName

public class WritableName
extends Object

Utility to permit renaming of Writable implementation classes without invalidiating files that contain their class name.

方法概要

方法

限定符和类型	方法和说明
static void	addName(Class writableClass, String name) Add an alternate name for a class.
static Class<?>	getClass(String name, Configuration conf) Return the class for a name.
static String	getName(Class writableClass) Return the name for a class.
static void	setName(Class writableClass, String name) Set the name that a class should be known as to something other than the class name.

从类继承的方法 java.lang.Object

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

方法详细资料

setName

public static void setName(Class writableClass,
           String name)

Set the name that a class should be known as to something other than the class name.

addName

public static void addName(Class writableClass,
           String name)

Add an alternate name for a class.

getName

public static String getName(Class writableClass)

Return the name for a class. Default is Class.getName().

getClass

public static Class<?> getClass(String name,
                Configuration conf)
                         throws IOException

Return the class for a name. Default is Class.forName(String).

抛出:

IOException