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) |
- <
Subject
>
- See Also:
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Field Summary
Modifier and TypeFieldDescription(type: dt.DateOrDateTime)static final SubjectSchemeIdentifier
static final String
static final String
(type: dt.NonEmptyString) -
Constructor Summary
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Method Summary
Modifier and TypeMethodDescription__v()
Internal API, use theOnixElement.value()
method or theOnixElement.value()
field insteadboolean
exists()
indicates whether this tag exists in the ONIX recordvoid
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
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Field Details
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refname
- See Also:
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shortname
- See Also:
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datestamp
(type: dt.DateOrDateTime) -
sourcename
(type: dt.NonEmptyString) -
sourcetype
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value
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EMPTY
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Constructor Details
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SubjectSchemeIdentifier
public SubjectSchemeIdentifier() -
SubjectSchemeIdentifier
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Method Details
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__v
Internal API, use theOnixElement.value()
method or theOnixElement.value()
field instead- Specified by:
__v
in interfaceOnixElement<SubjectSchemeIdentifiers>
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exists
public boolean exists()Description copied from interface:OnixTag
indicates whether this tag exists in the ONIX record -
ifExists
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codeOrNull
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descriptionOrNull
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