org.apache.hadoop.streaming

类 JarBuilder

java.lang.Object

org.apache.hadoop.streaming.JarBuilder

public class JarBuilder
extends Object

This class is the main class for generating job.jar for Hadoop Streaming jobs. It includes the files specified with the -file option and includes them in the jar. Also, hadoop-streaming is a user level appplication, so all the classes with hadoop-streaming that are needed in the job are also included in the job.jar.

字段概要

字段

限定符和类型	字段和说明
protected boolean	verbose

构造器概要

构造器

构造器和说明
JarBuilder()

方法概要

方法

限定符和类型	方法和说明
protected String	fileExtension(String file)
protected String	getBasePathInJarOut(String sourceFile)
static void	main(String[] args) Test program
void	merge(List srcNames, List srcUnjar, String dstJar)
void	setVerbose(boolean v)

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

verbose

protected boolean verbose

构造器详细资料

JarBuilder

public JarBuilder()

方法详细资料

setVerbose

public void setVerbose(boolean v)

merge

public void merge(List srcNames,
         List srcUnjar,
         String dstJar)
           throws IOException

抛出:

IOException

fileExtension

protected String fileExtension(String file)

getBasePathInJarOut

protected String getBasePathInJarOut(String sourceFile)

返回:

empty or a jar base path. Must not start with '/'

main

public static void main(String[] args)

Test program