net.sf.eos.hadoop.mapred.decompose
Class TextMetaKeyGenerator

java.lang.Object
  net.sf.eos.config.Configured
      net.sf.eos.hadoop.mapred.AbstractKeyGenerator<Text>
          net.sf.eos.hadoop.mapred.decompose.TextMetaKeyGenerator

All Implemented Interfaces:

Configurable, KeyGenerator<Text>

public class TextMetaKeyGenerator
extends AbstractKeyGenerator<Text>

Field Summary

static String

META_FIELD_FOR_KEY_CONFIG_NAME The meta field for separation.

Fields inherited from class net.sf.eos.hadoop.mapred.AbstractKeyGenerator

ABSTRACT_KEY_GENERATOR_IMPL_CONFIG_NAME

Constructor Summary

TextMetaKeyGenerator()

Method Summary

void	configure(Configuration config) Creates a copy of the given Configuration and stores it in a manner that Configured.getConfiguration() can reach it.
Map<Text,EosDocument>	createKeysForDocument(EosDocument doc) Creates a new key.

Methods inherited from class net.sf.eos.hadoop.mapred.AbstractKeyGenerator

newInstance

Methods inherited from class net.sf.eos.config.Configured

getConfiguration

Methods inherited from class java.lang.Object

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

Field Detail

META_FIELD_FOR_KEY_CONFIG_NAME

public static final String META_FIELD_FOR_KEY_CONFIG_NAME

The meta field for separation.

Default value is EosDocument.YEAR_META_KEY.

See Also:

Constant Field Values

Constructor Detail

TextMetaKeyGenerator

public TextMetaKeyGenerator()

Method Detail

createKeysForDocument

public Map<Text,EosDocument> createKeysForDocument(EosDocument doc)
                                            throws EosException

Description copied from interface: KeyGenerator

Creates a new key.

Parameters:

doc - the document to create a key for

Returns:

the key

Throws:

EosException - if an error occurs

configure

public void configure(Configuration config)

Description copied from class: Configured

Creates a copy of the given Configuration and stores it in a manner that Configured.getConfiguration() can reach it.

If override the method first call super in the overriding method.

Specified by:

configure in interface Configurable

Overrides:

configure in class Configured

Parameters:

config - the Configuration to copy.