org.ceryle.xnode
Class XNodeMetadataUtils

java.lang.Object
  org.ceryle.xnode.XNodeMetadataUtils

public class XNodeMetadataUtils
extends Object

A class containing static methods used for obtaining XNode metadata. Each method returns a String, or null if the property is unavailable.

These include:

• DC.title
• DC.date.created [see Note 1]
• DC.date.modified [see Note 1]
• DC.identifier
• DC.source
• DC.creator
• DC.contributor
• DC.subject
• DC.description
• DC.format (IMT or MIME type)
• DC.identifier.version [used as a revision number container, see Note 2]
• DCTERMS.references

Note 1: The Collection and Node IDs, creation and modification dates are not included, as they are intrinsically handled by the XNode API itself.

Note 2: This uses a Dublin Core UK refinement DC.identifier.version.

Version:

$Id: XNodeMetadataUtils.java,v 3.9 2007-06-16 04:37:13 altheim Exp $

Author:

Murray Altheim

Field Summary

static String	REFS_Id An identifier for document (bibliographic) reference information ("REFS.Id").
static String	REFS_isMetadataRef A URI identifier for document (bibliographic) reference information ("http://purl.org/ceryle/xnode/isMetadataRef").

Constructor Summary

XNodeMetadataUtils()

Method Summary

static String	getContributor(XNode xnode) Returns the DC.Contributor property of the provided XNode.
static String	getCreator(XNode xnode) Returns the DC.Creator (author) property of the provided XNode.
static String	getDescription(XNode xnode) Returns the DC.Description property of the provided XNode.
static String	getFormat(XNode xnode) Returns the DC.Format (MIME or IMT) property of the provided XNode.
static String	getIdentifier(XNode xnode) Returns the DC.Identifier (system ID, a URI/URL) property of the provided XNode.
static String	getIsMetadataReference(XNode xnode) Returns the Ceryle metadata reference property of the provided XNode.
static String	getReferences(XNode xnode) Returns the DCTERMS.references property of the provided XNode.
static String	getRevision(XNode xnode) Returns the DC.Identifier.version (revision ID) property of the provided XNode.
static String	getSource(XNode xnode) Returns the DC.Source (a URI/URL) property of the provided XNode.
static String	getSubject(XNode xnode) Returns the DC.Subject property of the provided XNode.
static String	getTitle(XNode xnode) Returns the DC.Title property of the provided XNode.

Methods inherited from class java.lang.Object

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

Field Detail

REFS_Id

public static final String REFS_Id

An identifier for document (bibliographic) reference information ("REFS.Id").

See Also:

Constant Field Values

REFS_isMetadataRef

public static final String REFS_isMetadataRef

A URI identifier for document (bibliographic) reference information ("http://purl.org/ceryle/xnode/isMetadataRef").

See Also:

Constant Field Values

Constructor Detail

XNodeMetadataUtils

public XNodeMetadataUtils()

Method Detail

getTitle

public static String getTitle(XNode xnode)

Returns the DC.Title property of the provided XNode.

getIdentifier

public static String getIdentifier(XNode xnode)

Returns the DC.Identifier (system ID, a URI/URL) property of the provided XNode.

getSource

public static String getSource(XNode xnode)

Returns the DC.Source (a URI/URL) property of the provided XNode.

getCreator

public static String getCreator(XNode xnode)

Returns the DC.Creator (author) property of the provided XNode.

getContributor

public static String getContributor(XNode xnode)

Returns the DC.Contributor property of the provided XNode.

getSubject

public static String getSubject(XNode xnode)

Returns the DC.Subject property of the provided XNode. This is a whitespace-separated list of URIs.

getDescription

public static String getDescription(XNode xnode)

Returns the DC.Description property of the provided XNode.

getFormat

public static String getFormat(XNode xnode)

Returns the DC.Format (MIME or IMT) property of the provided XNode.

getRevision

public static String getRevision(XNode xnode)

Returns the DC.Identifier.version (revision ID) property of the provided XNode.

getIsMetadataReference

public static String getIsMetadataReference(XNode xnode)

Returns the Ceryle metadata reference property of the provided XNode. This is a reference to an external document for which this XNode is a metadata record.

See Also:

REFS_isMetadataRef

getReferences

public static String getReferences(XNode xnode)

Returns the DCTERMS.references property of the provided XNode. This is a whitespace-separated list of URIs.

Note that the 's' on the end of the term indicates this as an active verb, not a plural noun.