org.apache.nutch.metadata
Class SpellCheckedMetadata

java.lang.Object
  extended by org.apache.nutch.metadata.Metadata
      extended by org.apache.nutch.metadata.SpellCheckedMetadata
All Implemented Interfaces:
Writable, CreativeCommons, DublinCore, Feed, HttpHeaders, Nutch, Office

public class SpellCheckedMetadata
extends Metadata

A decorator to Metadata that adds spellchecking capabilities to property names. Currently used spelling vocabulary contains just the httpheaders from HttpHeaders class.


Field Summary
 
Fields inherited from interface org.apache.nutch.metadata.CreativeCommons
LICENSE_LOCATION, LICENSE_URL, WORK_TYPE
 
Fields inherited from interface org.apache.nutch.metadata.DublinCore
CONTRIBUTOR, COVERAGE, CREATOR, DATE, DESCRIPTION, FORMAT, IDENTIFIER, LANGUAGE, MODIFIED, PUBLISHER, RELATION, RIGHTS, SOURCE, SUBJECT, TITLE, TYPE
 
Fields inherited from interface org.apache.nutch.metadata.HttpHeaders
CONTENT_DISPOSITION, CONTENT_ENCODING, CONTENT_LANGUAGE, CONTENT_LENGTH, CONTENT_LOCATION, CONTENT_MD5, CONTENT_TYPE, LAST_MODIFIED, LOCATION
 
Fields inherited from interface org.apache.nutch.metadata.Nutch
CACHING_FORBIDDEN_ALL, CACHING_FORBIDDEN_CONTENT, CACHING_FORBIDDEN_KEY, CACHING_FORBIDDEN_NONE, CHAR_ENCODING_FOR_CONVERSION, FETCH_STATUS_KEY, FETCH_TIME_KEY, GENERATE_TIME_KEY, ORIGINAL_CHAR_ENCODING, PROTO_STATUS_KEY, REPR_URL_KEY, SCORE_KEY, SEGMENT_NAME_KEY, SIGNATURE_KEY, WRITABLE_GENERATE_TIME_KEY, WRITABLE_PROTO_STATUS_KEY, WRITABLE_REPR_URL_KEY
 
Fields inherited from interface org.apache.nutch.metadata.Office
APPLICATION_NAME, AUTHOR, CHARACTER_COUNT, COMMENTS, KEYWORDS, LAST_AUTHOR, LAST_PRINTED, LAST_SAVED, PAGE_COUNT, REVISION_NUMBER, TEMPLATE, WORD_COUNT
 
Fields inherited from interface org.apache.nutch.metadata.Feed
FEED, FEED_AUTHOR, FEED_PUBLISHED, FEED_TAGS, FEED_UPDATED
 
Constructor Summary
SpellCheckedMetadata()
           
 
Method Summary
 void add(String name, String value)
          Add a metadata name/value mapping.
 String get(String name)
          Get the value associated to a metadata name.
static String getNormalizedName(String name)
          Get the normalized name of metadata attribute name.
 String[] getValues(String name)
          Get the values associated to a metadata name.
 void remove(String name)
          Remove a metadata and all its associated values.
 void set(String name, String value)
          Set metadata name/value.
 
Methods inherited from class org.apache.nutch.metadata.Metadata
clear, equals, isMultiValued, names, readFields, setAll, size, toString, write
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

SpellCheckedMetadata

public SpellCheckedMetadata()
Method Detail

getNormalizedName

public static String getNormalizedName(String name)
Get the normalized name of metadata attribute name. This method tries to find a well-known metadata name (one of the metadata names defined in this class) that matches the specified name. The matching is error tolerent. For instance, If no matching with a well-known metadata name is found, then the original name is returned.

Parameters:
name - Name to normalize
Returns:
normalized name

remove

public void remove(String name)
Description copied from class: Metadata
Remove a metadata and all its associated values.

Overrides:
remove in class Metadata
Parameters:
name - metadata name to remove

add

public void add(String name,
                String value)
Description copied from class: Metadata
Add a metadata name/value mapping. Add the specified value to the list of values associated to the specified metadata name.

Overrides:
add in class Metadata
Parameters:
name - the metadata name.
value - the metadata value.

getValues

public String[] getValues(String name)
Description copied from class: Metadata
Get the values associated to a metadata name.

Overrides:
getValues in class Metadata
Parameters:
name - of the metadata.
Returns:
the values associated to a metadata name.

get

public String get(String name)
Description copied from class: Metadata
Get the value associated to a metadata name. If many values are assiociated to the specified name, then the first one is returned.

Overrides:
get in class Metadata
Parameters:
name - of the metadata.
Returns:
the value associated to the specified metadata name.

set

public void set(String name,
                String value)
Description copied from class: Metadata
Set metadata name/value. Associate the specified value to the specified metadata name. If some previous values were associated to this name, they are removed.

Overrides:
set in class Metadata
Parameters:
name - the metadata name.
value - the metadata value.


Copyright © 2012 The Apache Software Foundation