com.asakusafw.runtime.core

Class HadoopConfiguration

java.lang.Object

org.apache.hadoop.conf.Configured

com.asakusafw.runtime.core.HadoopConfiguration

All Implemented Interfaces:

ResourceConfiguration, org.apache.hadoop.conf.Configurable

public class HadoopConfiguration
extends org.apache.hadoop.conf.Configured
implements ResourceConfiguration

Resource configuration object for Hadoop environment.

Since:

0.1.0

Version:

0.7.3

Constructor Summary

Constructors

Constructor and Description
HadoopConfiguration() Creates a new instance with an empty Hadoop configuration.
HadoopConfiguration(org.apache.hadoop.conf.Configuration configuration) Creates a new instance.

Method Summary

Modifier and Type	Method and Description
String	get(String keyName, String defaultValue) Returns a configuration value for the specified key.
ClassLoader	getClassLoader() Returns a class loader for this configuration.
void	set(String keyName, String value) Sets a configuration value for the specified key.

Methods inherited from class org.apache.hadoop.conf.Configured

getConf, setConf

Methods inherited from class java.lang.Object

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

Constructor Detail

HadoopConfiguration

public HadoopConfiguration()

Creates a new instance with an empty Hadoop configuration.

HadoopConfiguration

public HadoopConfiguration(org.apache.hadoop.conf.Configuration configuration)

Creates a new instance.

Parameters:

configuration - configuration object to be wrapped

Throws:

IllegalArgumentException - if the parameter is null

Method Detail

get

public String get(String keyName,
                  String defaultValue)

Description copied from interface: ResourceConfiguration

Returns a configuration value for the specified key.

Specified by:

get in interface ResourceConfiguration

Parameters:

keyName - the key name

defaultValue - the default value (nullable)

Returns:

the configuration value for the specified key, or the defaultValue if it is not defined

set

public void set(String keyName,
                String value)

Description copied from interface: ResourceConfiguration

Sets a configuration value for the specified key.

Specified by:

set in interface ResourceConfiguration

Parameters:

keyName - the key name

value - the configuration value, or null to delete its property

getClassLoader

public ClassLoader getClassLoader()

Description copied from interface: ResourceConfiguration

Returns a class loader for this configuration.

Specified by:

getClassLoader in interface ResourceConfiguration

Returns:

class loader