Package org.apache.nutch.metadata

## Interface DublinCore

- All Known Implementing Classes:
    `CaseInsensitiveMetadata`, `Metadata`, `SpellCheckedMetadata`

      public interface DublinCore

  A collection of Dublin Core metadata names.
  Author:
    Chris Mattmann, Jérôme Charron
  See Also:
    dublincore.org

- - ### Field Summary

    Fields
    Modifier and Type | Field | Description
    --- | --- | ---
    `static String` | `CONTRIBUTOR` | An entity responsible for making contributions to the content of the resource.
    `static String` | `COVERAGE` | The extent or scope of the content of the resource.
    `static String` | `CREATOR` | An entity primarily responsible for making the content of the resource.
    `static String` | `DATE` | A date associated with an event in the life cycle of the resource.
    `static String` | `DESCRIPTION` | An account of the content of the resource.
    `static String` | `FORMAT` | Typically, Format may include the media-type or dimensions of the resource.
    `static String` | `IDENTIFIER` | Recommended best practice is to identify the resource by means of a string or number conforming to a formal identification system.
    `static String` | `LANGUAGE` | A language of the intellectual content of the resource.
    `static String` | `MODIFIED` | Date on which the resource was changed.
    `static String` | `PUBLISHER` | An entity responsible for making the resource available.
    `static String` | `RELATION` | A reference to a related resource.
    `static String` | `RIGHTS` | Information about rights held in and over the resource.
    `static String` | `SOURCE` | A reference to a resource from which the present resource is derived.
    `static String` | `SUBJECT` | The topic of the content of the resource.
    `static String` | `TITLE` | A name given to the resource.
    `static String` | `TYPE` | The nature or genre of the content of the resource.

- - ### Field Detail

    - #### FORMAT

          static final String FORMAT

      Typically, Format may include the media-type or dimensions of the resource. Format may be used to determine the software, hardware or other equipment needed to display or operate the resource. Examples of dimensions include size and duration. Recommended best practice is to select a value from a controlled vocabulary (for example, the list of Internet Media Types [MIME] defining computer media formats).
      See Also:
        Constant Field Values

    - #### IDENTIFIER

          static final String IDENTIFIER

      Recommended best practice is to identify the resource by means of a string or number conforming to a formal identification system. Example formal identification systems include the Uniform Resource Identifier (URI) (including the Uniform Resource Locator (URL)), the Digital Object Identifier (DOI) and the International Standard Book Number (ISBN).
      See Also:
        Constant Field Values

    - #### MODIFIED

          static final String MODIFIED

      Date on which the resource was changed.
      See Also:
        Constant Field Values

    - #### CONTRIBUTOR

          static final String CONTRIBUTOR

      An entity responsible for making contributions to the content of the resource. Examples of a Contributor include a person, an organisation, or a service. Typically, the name of a Contributor should be used to indicate the entity.
      See Also:
        Constant Field Values

    - #### COVERAGE

          static final String COVERAGE

      The extent or scope of the content of the resource. Coverage will typically include spatial location (a place name or geographic coordinates), temporal period (a period label, date, or date range) or jurisdiction (such as a named administrative entity). Recommended best practice is to select a value from a controlled vocabulary (for example, the Thesaurus of Geographic Names [TGN]) and that, where appropriate, named places or time periods be used in preference to numeric identifiers such as sets of coordinates or date ranges.
      See Also:
        Constant Field Values

    - #### CREATOR

          static final String CREATOR

      An entity primarily responsible for making the content of the resource. Examples of a Creator include a person, an organisation, or a service. Typically, the name of a Creator should be used to indicate the entity.
      See Also:
        Constant Field Values

    - #### DATE

          static final String DATE

      A date associated with an event in the life cycle of the resource. Typically, Date will be associated with the creation or availability of the resource. Recommended best practice for encoding the date value is defined in a profile of ISO 8601 [W3CDTF] and follows the YYYY-MM-DD format.
      See Also:
        Constant Field Values

    - #### DESCRIPTION

          static final String DESCRIPTION

      An account of the content of the resource. Description may include but is not limited to: an abstract, table of contents, reference to a graphical representation of content or a free-text account of the content.
      See Also:
        Constant Field Values

    - #### LANGUAGE

          static final String LANGUAGE

      A language of the intellectual content of the resource. Recommended best practice is to use RFC 3066 [RFC3066], which, in conjunction with ISO 639 [ISO639], defines two- and three-letter primary language tags with optional subtags. Examples include "en" or "eng" for English, "akk" for Akkadian, and "en-GB" for English used in the United Kingdom.
      See Also:
        Constant Field Values

    - #### PUBLISHER

          static final String PUBLISHER

      An entity responsible for making the resource available. Examples of a Publisher include a person, an organisation, or a service. Typically, the name of a Publisher should be used to indicate the entity.
      See Also:
        Constant Field Values

    - #### RELATION

          static final String RELATION

      A reference to a related resource. Recommended best practice is to reference the resource by means of a string or number conforming to a formal identification system.
      See Also:
        Constant Field Values

    - #### RIGHTS

          static final String RIGHTS

      Information about rights held in and over the resource. Typically, a Rights element will contain a rights management statement for the resource, or reference a service providing such information. Rights information often encompasses Intellectual Property Rights (IPR), Copyright, and various Property Rights. If the Rights element is absent, no assumptions can be made about the status of these and other rights with respect to the resource.
      See Also:
        Constant Field Values

    - #### SOURCE

          static final String SOURCE

      A reference to a resource from which the present resource is derived. The present resource may be derived from the Source resource in whole or in part. Recommended best practice is to reference the resource by means of a string or number conforming to a formal identification system.
      See Also:
        Constant Field Values

    - #### SUBJECT

          static final String SUBJECT

      The topic of the content of the resource. Typically, a Subject will be expressed as keywords, key phrases or classification codes that describe a topic of the resource. Recommended best practice is to select a value from a controlled vocabulary or formal classification scheme.
      See Also:
        Constant Field Values

    - #### TITLE

          static final String TITLE

      A name given to the resource. Typically, a Title will be a name by which the resource is formally known.
      See Also:
        Constant Field Values

    - #### TYPE

          static final String TYPE

      The nature or genre of the content of the resource. Type includes terms describing general categories, functions, genres, or aggregation levels for content. Recommended best practice is to select a value from a controlled vocabulary (for example, the DCMI Type Vocabulary [DCMITYPE]). To describe the physical or digital manifestation of the resource, use the Format element.
      See Also:
        Constant Field Values