= Aperture Vocabularies =

Dublin Core properties:
 * http://purl.org/dc/elements/1.1/source
 * http://purl.org/dc/elements/1.1/title
 * http://purl.org/dc/elements/1.1/creator
 * http://purl.org/dc/elements/1.1/subject
 * http://purl.org/dc/elements/1.1/keywords
 * http://purl.org/dc/elements/1.1/description
 * http://purl.org/dc/elements/1.1/language
 * http://purl.org/dc/elements/1.1/type    (Document Type)
 * http://purl.org/dc/elements/1.1/format
 * http://purl.org/dc/elements/1.1/publisher
 * http://purl.org/dc/elements/1.1/identifier
 * http://purl.org/dc/elements/1.1/coverage
 * http://purl.org/dc/elements/1.1/contributor
 * http://purl.org/dc/elements/1.1/rights
 * http://purl.org/dc/elements/1.1/relation
 * http://purl.org/dc/elements/1.1/date
 * http://purl.org/dc/terms/abstract
 * http://purl.org/dc/terms/created (Creation Date)
 * http://purl.org/dc/terms/modified (Modification Date)



(currently this is the source, please rework:)
 *
    static final String CATWIESEL_NAMESPACE = "urn:catwiesel:attribute";
    static final String DC_NAMESPACE = "http://purl.org/dc/elements/1.1";

	
    public static final URI SOURCE = URI.create(DC_NAMESPACE + "/source");
    public static final URI TITLE = URI.create(DC_NAMESPACE + "/title");
    public static final URI CREATOR = URI.create(DC_NAMESPACE + "/creator");
    public static final URI KEYWORDS = URI.create(DC_NAMESPACE + "/subject");
    public static final URI SUBJECT = URI.create(DC_NAMESPACE + "/subject");
    public static final URI DESCRIPTION = URI.create(DC_NAMESPACE + "/description");
    public static final URI LANGUAGE = URI.create(DC_NAMESPACE + "/language");
    public final static URI DOCUMENT_TYPE = URI.create(DC_NAMESPACE + "/type");
    public final static URI FORMAT = URI.create(DC_NAMESPACE + "/format");
    public final static URI PUBLISHER = URI.create(DC_NAMESPACE + "/publisher");
    public final static URI IDENTIFIER = URI.create(DC_NAMESPACE + "/identifier");
    public final static URI COVERAGE = URI.create(DC_NAMESPACE + "/coverage");
    public final static URI CONTRIBUTOR = URI.create(DC_NAMESPACE + "/contributor");
    public final static URI RIGTHS = URI.create(DC_NAMESPACE + "/rights");
    public final static URI RELATION = URI.create(DC_NAMESPACE + "/relation");
    public final static URI DATE = URI.create(DC_NAMESPACE + "/date");
    
    public static final URI ABSTRACT = URI.create("http://purl.org/dc/terms/abstract");
    public static final URI CREATION_DATE = URI.create("http://purl.org/dc/terms/created");

Specific properties for managing crawled data, submitted by '''Heinz Kirchmann''':
    public static final URI ENTRY_TYPE = URI.create(CATWIESEL_NAMESPACE + ":entry_type");
    public static final URI MY_URI = URI.create(CATWIESEL_NAMESPACE + ":uri");
    public static final URI PARENT_URI = URI.create(CATWIESEL_NAMESPACE + ":parent_uri");
    public static final URI CHECKSUM = URI.create(CATWIESEL_NAMESPACE + ":checksum");
	
    public static final URI CATEGORY_NAME = URI.create(CATWIESEL_NAMESPACE + ":category_name");
    public static final URI CONTENT = URI.create(CATWIESEL_NAMESPACE + ":content"); 



    public static final URI CATWIESEL_CREATION_DATE = URI.create(CATWIESEL_NAMESPACE + ":creation_date");
    public static final URI MODIFICATION_DATE = URI.create("http://purl.org/dc/terms/modified");
    public static final URI CATWIESEL_MODIFICATION_DATE = URI.create(CATWIESEL_NAMESPACE + ":modification_date");
    public static final URI MODIFICATION_TIME = URI.create(CATWIESEL_NAMESPACE + ":modification_time"); 
    public static final URI NUMBER_OF_PAGES = URI.create(CATWIESEL_NAMESPACE + ":number_of_pages");

    public static final URI MIME_TYPE = URI.create(CATWIESEL_NAMESPACE + ":mime_type"); 
    public static final URI CONTENT_MIME_TYPE = URI.create(CATWIESEL_NAMESPACE + ":content_mime_type");
    public static final URI MAIL_SUBJECT = URI.create(CATWIESEL_NAMESPACE + ":mail_subject");
    public static final URI MAIL_TO = URI.create(CATWIESEL_NAMESPACE + ":mail_to");
    public static final URI MAIL_CARBON_COPY = URI.create(CATWIESEL_NAMESPACE + ":mail_carbon_copy");
    public static final URI MAIL_BLIND_CARBON_COPY = URI.create(CATWIESEL_NAMESPACE + ":mail_blind_carbon_copy");
    public static final URI CHARACTER_SET = URI.create(CATWIESEL_NAMESPACE + ":character_set");
    public static final URI WIKIPEDIA_PAGE_ID = URI.create(CATWIESEL_NAMESPACE + ":wikipedia_page_id");