Module jonix.onix3

Package com.tectonica.jonix.onix3

Class SubjectSchemeIdentifier

java.lang.Object

com.tectonica.jonix.onix3.SubjectSchemeIdentifier

All Implemented Interfaces:

OnixElement<SubjectSchemeIdentifiers>, OnixTag, Serializable

public class SubjectSchemeIdentifier
extends Object
implements OnixElement<SubjectSchemeIdentifiers>, Serializable

Subject scheme identifier

An ONIX code which identifies the category or subject heading scheme which is used in an occurrence of the <Subject> composite. Mandatory in each occurrence of the composite, and non-repeating.

For category schemes that use code values, use the associated <SubjectCode> element to carry the value (if so required, the <SubjectHeadingText> element can be used simultaneously to carry the text equivalent of the code). For schemes that use text headings, use the <SubjectHeadingText> element to carry the text of the category heading.

Format	Fixed length, two alphanumeric characters
Codelist	List 27
Reference name	<SubjectSchemeIdentifier>
Short tag	<b067>
Cardinality	1
Example	<b067>03</b067> (US Library of Congress classification)

This tag may be included in the following composites:

• <Subject>

Possible placements within ONIX message:

• Product ⯈ DescriptiveDetail ⯈ Subject ⯈ SubjectSchemeIdentifier
• Product ⯈ ContentDetail ⯈ ContentItem ⯈ Subject ⯈ SubjectSchemeIdentifier

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
String	datestamp	(type: dt.DateOrDateTime)
static final SubjectSchemeIdentifier	EMPTY
static final String	refname
static final String	shortname
String	sourcename	(type: dt.NonEmptyString)
RecordSourceTypes	sourcetype
SubjectSchemeIdentifiers	value

Constructor Summary

Constructors

Constructor	Description
SubjectSchemeIdentifier()
SubjectSchemeIdentifier(Element element)

Method Summary

Modifier and Type	Method	Description
SubjectSchemeIdentifiers	__v()	Internal API, use the OnixElement.value() method or the OnixElement.value() field instead
String	codeOrNull()
String	descriptionOrNull()
boolean	exists()	indicates whether this tag exists in the ONIX record
void	ifExists(Consumer<SubjectSchemeIdentifier> action)

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.tectonica.jonix.common.OnixElement

equal, is, isNull, value

Field Details

refname

public static final String refname

See Also:

• Constant Field Values

shortname

public static final String shortname

See Also:

• Constant Field Values

datestamp

public String datestamp

(type: dt.DateOrDateTime)

sourcename

public String sourcename

(type: dt.NonEmptyString)

sourcetype

public RecordSourceTypes sourcetype

value

public SubjectSchemeIdentifiers value

EMPTY

public static final SubjectSchemeIdentifier EMPTY

Constructor Details

SubjectSchemeIdentifier

public SubjectSchemeIdentifier()

SubjectSchemeIdentifier

public SubjectSchemeIdentifier(Element element)

Method Details

__v

public SubjectSchemeIdentifiers __v()

Internal API, use the OnixElement.value() method or the OnixElement.value() field instead

Specified by:

__v in interface OnixElement<SubjectSchemeIdentifiers>

exists

public boolean exists()

Description copied from interface: OnixTag

indicates whether this tag exists in the ONIX record

Specified by:

exists in interface OnixTag

Returns:

whether this tag (<SubjectSchemeIdentifier> or <b067>) is explicitly provided in the ONIX XML

ifExists

public void ifExists(Consumer<SubjectSchemeIdentifier> action)

codeOrNull

public String codeOrNull()

descriptionOrNull

public String descriptionOrNull()