org.apache.hadoop

注释类型 HadoopVersionAnnotation

@Retention(value=RUNTIME)
@Target(value=PACKAGE)
public @interface HadoopVersionAnnotation

A package attribute that captures the version of Hadoop that was compiled.

必需元素概要

所需元素

限定符和类型	必需的元素和说明
String	date Get the date when Hadoop was compiled.
String	revision Get the subversion revision.
String	srcChecksum Get a checksum of the source files from which Hadoop was compiled.
String	url Get the url for the subversion repository.
String	user Get the username that compiled Hadoop.
String	version Get the Hadoop version

元素详细资料

version

public abstract String version

Get the Hadoop version

返回:

the version string "0.6.3-dev"

user

public abstract String user

Get the username that compiled Hadoop.

date

public abstract String date

Get the date when Hadoop was compiled.

返回:

the date in unix 'date' format

url

public abstract String url

Get the url for the subversion repository.

revision

public abstract String revision

Get the subversion revision.

返回:

the revision number as a string (eg. "451451")

srcChecksum

public abstract String srcChecksum

Get a checksum of the source files from which Hadoop was compiled.

返回:

a string that uniquely identifies the source