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<h1 title="Interface IdentifiedObject" class="title">Interface IdentifiedObject</h1>
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<section class="class-description" id="class-description">
<dl class="notes">
<dt>All Known Implementing Classes:</dt>
<dd><code><a href="../metadata/iso/quality/AbstractCompleteness.html" title="class in org.apache.sis.metadata.iso.quality">Abstract­Completeness</a></code>, <code><a href="../metadata/iso/content/AbstractContentInformation.html" title="class in org.apache.sis.metadata.iso.content">Abstract­Content­Information</a></code>, <code><a href="../metadata/iso/quality/AbstractDataEvaluation.html" title="class in org.apache.sis.metadata.iso.quality">Abstract­Data­Evaluation</a></code>, <code><a href="../metadata/iso/quality/AbstractElement.html" title="class in org.apache.sis.metadata.iso.quality">Abstract­Element</a></code>, <code><a href="../metadata/iso/extent/AbstractGeographicExtent.html" title="class in org.apache.sis.metadata.iso.extent">Abstract­Geographic­Extent</a></code>, <code><a href="../metadata/iso/spatial/AbstractGeolocationInformation.html" title="class in org.apache.sis.metadata.iso.spatial">Abstract­Geolocation­Information</a></code>, <code><a href="../metadata/iso/identification/AbstractIdentification.html" title="class in org.apache.sis.metadata.iso.identification">Abstract­Identification</a></code>, <code><a href="../metadata/iso/quality/AbstractLogicalConsistency.html" title="class in org.apache.sis.metadata.iso.quality">Abstract­Logical­Consistency</a></code>, <code><a href="../metadata/iso/quality/AbstractMetaquality.html" title="class in org.apache.sis.metadata.iso.quality">Abstract­Metaquality</a></code>, <code><a href="../metadata/iso/citation/AbstractParty.html" title="class in org.apache.sis.metadata.iso.citation">Abstract­Party</a></code>, <code><a href="../metadata/iso/quality/AbstractPositionalAccuracy.html" title="class in org.apache.sis.metadata.iso.quality">Abstract­Positional­Accuracy</a></code>, <code><a href="../metadata/iso/quality/AbstractResult.html" title="class in org.apache.sis.metadata.iso.quality">Abstract­Result</a></code>, <code><a href="../metadata/iso/spatial/AbstractSpatialRepresentation.html" title="class in org.apache.sis.metadata.iso.spatial">Abstract­Spatial­Representation</a></code>, <code><a href="../metadata/iso/quality/AbstractTemporalAccuracy.html" title="class in org.apache.sis.metadata.iso.quality">Abstract­Temporal­Accuracy</a></code>, <code><a href="../metadata/iso/quality/AbstractTemporalQuality.html" title="class in org.apache.sis.metadata.iso.quality">Abstract­Temporal­Quality</a></code>, <code><a href="../metadata/iso/quality/AbstractThematicAccuracy.html" title="class in org.apache.sis.metadata.iso.quality">Abstract­Thematic­Accuracy</a></code>, <code><a href="../metadata/iso/quality/DefaultAbsoluteExternalPositionalAccuracy.html" title="class in org.apache.sis.metadata.iso.quality">Default­Absolute­External­Positional­Accuracy</a></code>, <code><a href="../metadata/iso/quality/DefaultAccuracyOfATimeMeasurement.html" title="class in org.apache.sis.metadata.iso.quality">Default­Accuracy­Of­ATime­Measurement</a></code>, <code><a href="../metadata/iso/acquisition/DefaultAcquisitionInformation.html" title="class in org.apache.sis.metadata.iso.acquisition">Default­Acquisition­Information</a></code>, <code><a href="../metadata/iso/citation/DefaultAddress.html" title="class in org.apache.sis.metadata.iso.citation">Default­Address</a></code>, <code><a href="../metadata/iso/identification/DefaultAggregateInformation.html" title="class in org.apache.sis.metadata.iso.identification">Default­Aggregate­Information</a></code>, <code><a href="../metadata/iso/quality/DefaultAggregationDerivation.html" title="class in org.apache.sis.metadata.iso.quality">Default­Aggregation­Derivation</a></code>, <code><a href="../metadata/iso/lineage/DefaultAlgorithm.html" title="class in org.apache.sis.metadata.iso.lineage">Default­Algorithm</a></code>, <code><a href="../metadata/iso/DefaultApplicationSchemaInformation.html" title="class in org.apache.sis.metadata.iso">Default­Application­Schema­Information</a></code>, <code><a href="../metadata/iso/identification/DefaultAssociatedResource.html" title="class in org.apache.sis.metadata.iso.identification">Default­Associated­Resource</a></code>, <code><a href="../metadata/iso/content/DefaultAttributeGroup.html" title="class in org.apache.sis.metadata.iso.content">Default­Attribute­Group</a></code>, <code><a href="../metadata/iso/content/DefaultBand.html" title="class in org.apache.sis.metadata.iso.content">Default­Band</a></code>, <code><a href="../metadata/iso/quality/DefaultBasicMeasure.html" title="class in org.apache.sis.metadata.iso.quality">Default­Basic­Measure</a></code>, <code><a href="../metadata/iso/extent/DefaultBoundingPolygon.html" title="class in org.apache.sis.metadata.iso.extent">Default­Bounding­Polygon</a></code>, <code><a href="../metadata/iso/identification/DefaultBrowseGraphic.html" title="class in org.apache.sis.metadata.iso.identification">Default­Browse­Graphic</a></code>, <code><a href="../metadata/iso/citation/DefaultCitation.html" title="class in org.apache.sis.metadata.iso.citation">Default­Citation</a></code>, <code><a href="../metadata/iso/citation/DefaultCitationDate.html" title="class in org.apache.sis.metadata.iso.citation">Default­Citation­Date</a></code>, <code><a href="../metadata/iso/quality/DefaultCompletenessCommission.html" title="class in org.apache.sis.metadata.iso.quality">Default­Completeness­Commission</a></code>, <code><a href="../metadata/iso/quality/DefaultCompletenessOmission.html" title="class in org.apache.sis.metadata.iso.quality">Default­Completeness­Omission</a></code>, <code><a href="../metadata/iso/quality/DefaultConceptualConsistency.html" title="class in org.apache.sis.metadata.iso.quality">Default­Conceptual­Consistency</a></code>, <code><a href="../metadata/iso/quality/DefaultConfidence.html" title="class in org.apache.sis.metadata.iso.quality">Default­Confidence</a></code>, <code><a href="../metadata/iso/quality/DefaultConformanceResult.html" title="class in org.apache.sis.metadata.iso.quality">Default­Conformance­Result</a></code>, <code><a href="../metadata/iso/constraint/DefaultConstraints.html" title="class in org.apache.sis.metadata.iso.constraint">Default­Constraints</a></code>, <code><a href="../metadata/iso/citation/DefaultContact.html" title="class in org.apache.sis.metadata.iso.citation">Default­Contact</a></code>, <code><a href="../metadata/iso/identification/DefaultCoupledResource.html" title="class in org.apache.sis.metadata.iso.identification">Default­Coupled­Resource</a></code>, <code><a href="../metadata/iso/content/DefaultCoverageDescription.html" title="class in org.apache.sis.metadata.iso.content">Default­Coverage­Description</a></code>, <code><a href="../metadata/iso/quality/DefaultCoverageResult.html" title="class in org.apache.sis.metadata.iso.quality">Default­Coverage­Result</a></code>, <code><a href="../metadata/iso/distribution/DefaultDataFile.html" title="class in org.apache.sis.metadata.iso.distribution">Default­Data­File</a></code>, <code><a href="../metadata/iso/identification/DefaultDataIdentification.html" title="class in org.apache.sis.metadata.iso.identification">Default­Data­Identification</a></code>, <code><a href="../metadata/iso/quality/DefaultDataQuality.html" title="class in org.apache.sis.metadata.iso.quality">Default­Data­Quality</a></code>, <code><a href="../metadata/iso/quality/DefaultDescriptiveResult.html" title="class in org.apache.sis.metadata.iso.quality">Default­Descriptive­Result</a></code>, <code><a href="../metadata/iso/distribution/DefaultDigitalTransferOptions.html" title="class in org.apache.sis.metadata.iso.distribution">Default­Digital­Transfer­Options</a></code>, <code><a href="../metadata/iso/spatial/DefaultDimension.html" title="class in org.apache.sis.metadata.iso.spatial">Default­Dimension</a></code>, <code><a href="../metadata/iso/distribution/DefaultDistribution.html" title="class in org.apache.sis.metadata.iso.distribution">Default­Distribution</a></code>, <code><a href="../metadata/iso/distribution/DefaultDistributor.html" title="class in org.apache.sis.metadata.iso.distribution">Default­Distributor</a></code>, <code><a href="../metadata/iso/quality/DefaultDomainConsistency.html" title="class in org.apache.sis.metadata.iso.quality">Default­Domain­Consistency</a></code>, <code><a href="../metadata/iso/acquisition/DefaultEnvironmentalRecord.html" title="class in org.apache.sis.metadata.iso.acquisition">Default­Environmental­Record</a></code>, <code><a href="../metadata/iso/quality/DefaultEvaluationMethod.html" title="class in org.apache.sis.metadata.iso.quality">Default­Evaluation­Method</a></code>, <code><a href="../metadata/iso/quality/DefaultEvaluationReportInformation.html" title="class in org.apache.sis.metadata.iso.quality">Default­Evaluation­Report­Information</a></code>, <code><a href="../metadata/iso/acquisition/DefaultEvent.html" title="class in org.apache.sis.metadata.iso.acquisition">Default­Event</a></code>, <code><a href="../metadata/iso/DefaultExtendedElementInformation.html" title="class in org.apache.sis.metadata.iso">Default­Extended­Element­Information</a></code>, <code><a href="../metadata/iso/extent/DefaultExtent.html" title="class in org.apache.sis.metadata.iso.extent">Default­Extent</a></code>, <code><a href="../metadata/iso/content/DefaultFeatureCatalogueDescription.html" title="class in org.apache.sis.metadata.iso.content">Default­Feature­Catalogue­Description</a></code>, <code><a href="../metadata/iso/content/DefaultFeatureTypeInfo.html" title="class in org.apache.sis.metadata.iso.content">Default­Feature­Type­Info</a></code>, <code><a href="../metadata/iso/distribution/DefaultFormat.html" title="class in org.apache.sis.metadata.iso.distribution">Default­Format</a></code>, <code><a href="../metadata/iso/quality/DefaultFormatConsistency.html" title="class in org.apache.sis.metadata.iso.quality">Default­Format­Consistency</a></code>, <code><a href="../metadata/iso/quality/DefaultFullInspection.html" title="class in org.apache.sis.metadata.iso.quality">Default­Full­Inspection</a></code>, <code><a href="../metadata/iso/spatial/DefaultGCP.html" title="class in org.apache.sis.metadata.iso.spatial">Default­GCP</a></code>, <code><a href="../metadata/iso/spatial/DefaultGCPCollection.html" title="class in org.apache.sis.metadata.iso.spatial">Default­GCPCollection</a></code>, <code><a href="../metadata/iso/extent/DefaultGeographicBoundingBox.html" title="class in org.apache.sis.metadata.iso.extent">Default­Geographic­Bounding­Box</a></code>, <code><a href="../metadata/iso/extent/DefaultGeographicDescription.html" title="class in org.apache.sis.metadata.iso.extent">Default­Geographic­Description</a></code>, <code><a href="../metadata/iso/spatial/DefaultGeometricObjects.html" title="class in org.apache.sis.metadata.iso.spatial">Default­Geometric­Objects</a></code>, <code><a href="../metadata/iso/spatial/DefaultGeorectified.html" title="class in org.apache.sis.metadata.iso.spatial">Default­Georectified</a></code>, <code><a href="../metadata/iso/spatial/DefaultGeoreferenceable.html" title="class in org.apache.sis.metadata.iso.spatial">Default­Georeferenceable</a></code>, <code><a href="../metadata/iso/quality/DefaultGriddedDataPositionalAccuracy.html" title="class in org.apache.sis.metadata.iso.quality">Default­Gridded­Data­Positional­Accuracy</a></code>, <code><a href="../metadata/iso/spatial/DefaultGridSpatialRepresentation.html" title="class in org.apache.sis.metadata.iso.spatial">Default­Grid­Spatial­Representation</a></code>, <code><a href="../metadata/iso/quality/DefaultHomogeneity.html" title="class in org.apache.sis.metadata.iso.quality">Default­Homogeneity</a></code>, <code><a href="../metadata/iso/DefaultIdentifier.html" title="class in org.apache.sis.metadata.iso">Default­Identifier</a></code>, <code><a href="../metadata/iso/content/DefaultImageDescription.html" title="class in org.apache.sis.metadata.iso.content">Default­Image­Description</a></code>, <code><a href="../metadata/iso/quality/DefaultIndirectEvaluation.html" title="class in org.apache.sis.metadata.iso.quality">Default­Indirect­Evaluation</a></code>, <code><a href="../metadata/iso/citation/DefaultIndividual.html" title="class in org.apache.sis.metadata.iso.citation">Default­Individual</a></code>, <code><a href="../metadata/iso/acquisition/DefaultInstrument.html" title="class in org.apache.sis.metadata.iso.acquisition">Default­Instrument</a></code>, <code><a href="../metadata/iso/identification/DefaultKeywordClass.html" title="class in org.apache.sis.metadata.iso.identification">Default­Keyword­Class</a></code>, <code><a href="../metadata/iso/identification/DefaultKeywords.html" title="class in org.apache.sis.metadata.iso.identification">Default­Keywords</a></code>, <code><a href="../metadata/iso/constraint/DefaultLegalConstraints.html" title="class in org.apache.sis.metadata.iso.constraint">Default­Legal­Constraints</a></code>, <code><a href="../metadata/iso/lineage/DefaultLineage.html" title="class in org.apache.sis.metadata.iso.lineage">Default­Lineage</a></code>, <code><a href="../metadata/iso/maintenance/DefaultMaintenanceInformation.html" title="class in org.apache.sis.metadata.iso.maintenance">Default­Maintenance­Information</a></code>, <code><a href="../metadata/iso/quality/DefaultMeasureDescription.html" title="class in org.apache.sis.metadata.iso.quality">Default­Measure­Description</a></code>, <code><a href="../metadata/iso/quality/DefaultMeasureReference.html" title="class in org.apache.sis.metadata.iso.quality">Default­Measure­Reference</a></code>, <code><a href="../metadata/iso/distribution/DefaultMedium.html" title="class in org.apache.sis.metadata.iso.distribution">Default­Medium</a></code>, <code><a href="../metadata/iso/DefaultMetadata.html" title="class in org.apache.sis.metadata.iso">Default­Metadata</a></code>, <code><a href="../metadata/iso/DefaultMetadataExtensionInformation.html" title="class in org.apache.sis.metadata.iso">Default­Metadata­Extension­Information</a></code>, <code><a href="../metadata/iso/DefaultMetadataScope.html" title="class in org.apache.sis.metadata.iso">Default­Metadata­Scope</a></code>, <code><a href="../metadata/iso/lineage/DefaultNominalResolution.html" title="class in org.apache.sis.metadata.iso.lineage">Default­Nominal­Resolution</a></code>, <code><a href="../metadata/iso/quality/DefaultNonQuantitativeAttributeAccuracy.html" title="class in org.apache.sis.metadata.iso.quality">Default­Non­Quantitative­Attribute­Accuracy</a></code>, <code><a href="../metadata/iso/quality/DefaultNonQuantitativeAttributeCorrectness.html" title="class in org.apache.sis.metadata.iso.quality">Default­Non­Quantitative­Attribute­Correctness</a></code>, <code><a href="../metadata/iso/acquisition/DefaultObjective.html" title="class in org.apache.sis.metadata.iso.acquisition">Default­Objective</a></code>, <code><a href="../metadata/iso/citation/DefaultOnlineResource.html" title="class in org.apache.sis.metadata.iso.citation">Default­Online­Resource</a></code>, <code><a href="../metadata/iso/acquisition/DefaultOperation.html" title="class in org.apache.sis.metadata.iso.acquisition">Default­Operation</a></code>, <code><a href="../metadata/iso/identification/DefaultOperationChainMetadata.html" title="class in org.apache.sis.metadata.iso.identification">Default­Operation­Chain­Metadata</a></code>, <code><a href="../metadata/iso/identification/DefaultOperationMetadata.html" title="class in org.apache.sis.metadata.iso.identification">Default­Operation­Metadata</a></code>, <code><a href="../metadata/iso/citation/DefaultOrganisation.html" title="class in org.apache.sis.metadata.iso.citation">Default­Organisation</a></code>, <code><a href="../metadata/iso/acquisition/DefaultPlan.html" title="class in org.apache.sis.metadata.iso.acquisition">Default­Plan</a></code>, <code><a href="../metadata/iso/acquisition/DefaultPlatform.html" title="class in org.apache.sis.metadata.iso.acquisition">Default­Platform</a></code>, <code><a href="../metadata/iso/acquisition/DefaultPlatformPass.html" title="class in org.apache.sis.metadata.iso.acquisition">Default­Platform­Pass</a></code>, <code><a href="../metadata/iso/DefaultPortrayalCatalogueReference.html" title="class in org.apache.sis.metadata.iso">Default­Portrayal­Catalogue­Reference</a></code>, <code><a href="../metadata/iso/lineage/DefaultProcessing.html" title="class in org.apache.sis.metadata.iso.lineage">Default­Processing</a></code>, <code><a href="../metadata/iso/lineage/DefaultProcessStep.html" title="class in org.apache.sis.metadata.iso.lineage">Default­Process­Step</a></code>, <code><a href="../metadata/iso/lineage/DefaultProcessStepReport.html" title="class in org.apache.sis.metadata.iso.lineage">Default­Process­Step­Report</a></code>, <code><a href="../metadata/iso/quality/DefaultQualityMeasure.html" title="class in org.apache.sis.metadata.iso.quality">Default­Quality­Measure</a></code>, <code><a href="../metadata/iso/quality/DefaultQuantitativeAttributeAccuracy.html" title="class in org.apache.sis.metadata.iso.quality">Default­Quantitative­Attribute­Accuracy</a></code>, <code><a href="../metadata/iso/quality/DefaultQuantitativeResult.html" title="class in org.apache.sis.metadata.iso.quality">Default­Quantitative­Result</a></code>, <code><a href="../metadata/iso/content/DefaultRangeDimension.html" title="class in org.apache.sis.metadata.iso.content">Default­Range­Dimension</a></code>, <code><a href="../metadata/iso/content/DefaultRangeElementDescription.html" title="class in org.apache.sis.metadata.iso.content">Default­Range­Element­Description</a></code>, <code><a href="../metadata/iso/quality/DefaultRelativeInternalPositionalAccuracy.html" title="class in org.apache.sis.metadata.iso.quality">Default­Relative­Internal­Positional­Accuracy</a></code>, <code><a href="../metadata/iso/constraint/DefaultReleasability.html" title="class in org.apache.sis.metadata.iso.constraint">Default­Releasability</a></code>, <code><a href="../metadata/iso/identification/DefaultRepresentativeFraction.html" title="class in org.apache.sis.metadata.iso.identification">Default­Representative­Fraction</a></code>, <code><a href="../metadata/iso/quality/DefaultRepresentativity.html" title="class in org.apache.sis.metadata.iso.quality">Default­Representativity</a></code>, <code><a href="../metadata/iso/acquisition/DefaultRequestedDate.html" title="class in org.apache.sis.metadata.iso.acquisition">Default­Requested­Date</a></code>, <code><a href="../metadata/iso/acquisition/DefaultRequirement.html" title="class in org.apache.sis.metadata.iso.acquisition">Default­Requirement</a></code>, <code><a href="../metadata/iso/identification/DefaultResolution.html" title="class in org.apache.sis.metadata.iso.identification">Default­Resolution</a></code>, <code><a href="../metadata/iso/citation/DefaultResponsibility.html" title="class in org.apache.sis.metadata.iso.citation">Default­Responsibility</a></code>, <code><a href="../metadata/iso/citation/DefaultResponsibleParty.html" title="class in org.apache.sis.metadata.iso.citation">Default­Responsible­Party</a></code>, <code><a href="../metadata/iso/quality/DefaultSampleBasedInspection.html" title="class in org.apache.sis.metadata.iso.quality">Default­Sample­Based­Inspection</a></code>, <code><a href="../metadata/iso/content/DefaultSampleDimension.html" title="class in org.apache.sis.metadata.iso.content">Default­Sample­Dimension</a></code>, <code><a href="../metadata/iso/maintenance/DefaultScope.html" title="class in org.apache.sis.metadata.iso.maintenance">Default­Scope</a></code>, <code><a href="../metadata/iso/quality/DefaultScope.html" title="class in org.apache.sis.metadata.iso.quality">Default­Scope</a></code>, <code><a href="../metadata/iso/maintenance/DefaultScopeDescription.html" title="class in org.apache.sis.metadata.iso.maintenance">Default­Scope­Description</a></code>, <code><a href="../metadata/iso/constraint/DefaultSecurityConstraints.html" title="class in org.apache.sis.metadata.iso.constraint">Default­Security­Constraints</a></code>, <code><a href="../metadata/iso/citation/DefaultSeries.html" title="class in org.apache.sis.metadata.iso.citation">Default­Series</a></code>, <code><a href="../metadata/iso/identification/DefaultServiceIdentification.html" title="class in org.apache.sis.metadata.iso.identification">Default­Service­Identification</a></code>, <code><a href="../metadata/iso/lineage/DefaultSource.html" title="class in org.apache.sis.metadata.iso.lineage">Default­Source</a></code>, <code><a href="../metadata/iso/quality/DefaultSourceReference.html" title="class in org.apache.sis.metadata.iso.quality">Default­Source­Reference</a></code>, <code><a href="../metadata/iso/extent/DefaultSpatialTemporalExtent.html" title="class in org.apache.sis.metadata.iso.extent">Default­Spatial­Temporal­Extent</a></code>, <code><a href="../metadata/iso/distribution/DefaultStandardOrderProcess.html" title="class in org.apache.sis.metadata.iso.distribution">Default­Standard­Order­Process</a></code>, <code><a href="../metadata/iso/citation/DefaultTelephone.html" title="class in org.apache.sis.metadata.iso.citation">Default­Telephone</a></code>, <code><a href="../metadata/iso/quality/DefaultTemporalConsistency.html" title="class in org.apache.sis.metadata.iso.quality">Default­Temporal­Consistency</a></code>, <code><a href="../metadata/iso/extent/DefaultTemporalExtent.html" title="class in org.apache.sis.metadata.iso.extent">Default­Temporal­Extent</a></code>, <code><a href="../metadata/iso/quality/DefaultTemporalValidity.html" title="class in org.apache.sis.metadata.iso.quality">Default­Temporal­Validity</a></code>, <code><a href="../metadata/iso/quality/DefaultThematicClassificationCorrectness.html" title="class in org.apache.sis.metadata.iso.quality">Default­Thematic­Classification­Correctness</a></code>, <code><a href="../metadata/iso/quality/DefaultTopologicalConsistency.html" title="class in org.apache.sis.metadata.iso.quality">Default­Topological­Consistency</a></code>, <code><a href="../metadata/iso/quality/DefaultUsability.html" title="class in org.apache.sis.metadata.iso.quality">Default­Usability</a></code>, <code><a href="../metadata/iso/identification/DefaultUsage.html" title="class in org.apache.sis.metadata.iso.identification">Default­Usage</a></code>, <code><a href="../metadata/iso/spatial/DefaultVectorSpatialRepresentation.html" title="class in org.apache.sis.metadata.iso.spatial">Default­Vector­Spatial­Representation</a></code>, <code><a href="../metadata/iso/extent/DefaultVerticalExtent.html" title="class in org.apache.sis.metadata.iso.extent">Default­Vertical­Extent</a></code>, <code><a href="../metadata/iso/ISOMetadata.html" title="class in org.apache.sis.metadata.iso">ISOMetadata</a></code></dd>
</dl>
<hr>
<div class="horizontal-scroll">
<div class="type-signature"><span class="modifiers">public interface </span><span class="element-name type-name-label">IdentifiedObject</span></div>
<div class="block">The interface for all SIS objects having identifiers. Identifiers are <a href="https://docs.oracle.com/en/java/javase/25/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link"><code>String</code></a> in
a namespace identified by a <a href="https://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/metadata/citation/Citation.html" title="class or interface in org.opengis.metadata.citation" class="external-link"><code>Citation</code></a>. The namespace can be some organization like
<a href="https://epsg.org/">EPSG</a> for Coordinate Reference System objects, or a
well-known acronym like ISBN for <cite>International Standard Book Number</cite>.
<p>When an identified object is marshalled in a ISO 19115-3 compliant XML document, some identifiers
are handled in a special way: they appear as <code>gml:id</code>, <code>gco:uuid</code> or <code>xlink:href</code>
attributes of the XML element. Those identifiers can be specified using the <a href="IdentifierSpace.html" title="interface in org.apache.sis.xml"><code>Identifier­Space</code></a>
enum values as below:</p>
<div class="snippet-container"><button class="copy snippet-copy" aria-label="Copy snippet" onclick="copySnippet(this)"><span data-copied="Copied!">Copy</span><img src="../../../../../resource-files/copy.svg" alt="Copy snippet"></button>
<pre class="snippet" id="snippet-org.apache.sis.xml.IdentifiedObject1"><code class="language-java">IdentifiedObject object = ...;
object.getIdentifierMap().put(IdentifierSpace.ID, "myID");
</code></pre>
</div>
<h2 id="relationship-with-geoapi-heading">Relationship with GeoAPI</h2>
Identifiers exist also in some (not all) GeoAPI objects. Some GeoAPI objects
(<a href="https://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/metadata/acquisition/Instrument.html" title="class or interface in org.opengis.metadata.acquisition" class="external-link"><code>Instrument</code></a>, <a href="https://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/metadata/acquisition/Platform.html" title="class or interface in org.opengis.metadata.acquisition" class="external-link"><code>Platform</code></a>,
<a href="https://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/metadata/acquisition/Operation.html" title="class or interface in org.opengis.metadata.acquisition" class="external-link"><code>Operation</code></a>, <a href="https://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/metadata/lineage/Processing.html" title="class or interface in org.opengis.metadata.lineage" class="external-link"><code>Processing</code></a>,
<i>etc.</i>) have an explicit single identifier attribute, while other GeoAPI objects
(<a href="https://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/metadata/citation/Citation.html" title="class or interface in org.opengis.metadata.citation" class="external-link"><code>Citation</code></a>, <a href="https://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/metadata/acquisition/Objective.html" title="class or interface in org.opengis.metadata.acquisition" class="external-link"><code>Objective</code></a>,
referencing <a href="https://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/IdentifiedObject.html" title="class or interface in org.opengis.referencing" class="external-link"><code>Identified­Object</code></a>, <i>etc.</i>) allow an arbitrary
number of identifiers. However, GeoAPI does not define explicit methods for handling the <code>id</code>,
<code>uuid</code> or <code>href</code> attributes, since they are specific to XML marshalling (they do not
appear in OGC/ISO abstract specifications). This <code>Identified­Object</code> interface provides a
way to handle those identifiers.
<p>Note that GeoAPI defines a similar interface, also named <a href="https://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/IdentifiedObject.html" title="class or interface in org.opengis.referencing" class="external-link"><code>Identified­Object</code></a>.
However, that GeoAPI interface is not of general use, since it contains methods like
<a href="https://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/IdentifiedObject.html#toWKT()" title="class or interface in org.opengis.referencing" class="external-link"><code>to­WKT()</code></a> that are specific to referencing
or geometric objects. In addition, the GeoAPI interface defines some attributes
(<a href="https://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/IdentifiedObject.html#getName()" title="class or interface in org.opengis.referencing" class="external-link">name</a>,
<a href="https://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/IdentifiedObject.html#getAlias()" title="class or interface in org.opengis.referencing" class="external-link">alias</a>,
<a href="https://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/referencing/IdentifiedObject.html#getRemarks()" title="class or interface in org.opengis.referencing" class="external-link">remarks</a>) that are not needed
for the purpose of handling XML <code>id</code>, <code>uuid</code> or <code>href</code> attributes.</p></div>
<dl class="notes">
<dt>Since:</dt>
<dd>0.3</dd>
<dt>See Also:</dt>
<dd>
<ul class="tag-list-long">
<li><a href="IdentifierSpace.html" title="interface in org.apache.sis.xml"><code>Identifier­Space</code></a></li>
<li><a href="../metadata/iso/ISOMetadata.html" title="class in org.apache.sis.metadata.iso"><code>ISOMetadata</code></a></li>
<li><a href="ReferenceResolver.html#newIdentifiedObject(org.apache.sis.xml.MarshalContext,java.lang.Class,org.opengis.metadata.Identifier...)"><code>Reference­Resolver​.new­Identified­Object(Marshal­Context, Class, Identifier[])</code></a></li>
</ul>
</dd>
</dl>
</div>
</section>
<section class="summary">
<ul class="summary-list">
<!-- ========== METHOD SUMMARY =========== -->
<li>
<section class="method-summary" id="method-summary">
<h2>Method Summary</h2>
<div id="method-summary-table">
<div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab2" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab2', 3)" class="table-tab">Instance Methods</button><button id="method-summary-table-tab3" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab3', 3)" class="table-tab">Abstract Methods</button></div>
<div id="method-summary-table.tabpanel" role="tabpanel" aria-labelledby="method-summary-table-tab0">
<div class="summary-table three-column-summary">
<div class="table-header col-first">Modifier and Type</div>
<div class="table-header col-second">Method</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="IdentifierMap.html" title="interface in org.apache.sis.xml">Identifier­Map</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getIdentifierMap()" class="member-name-link">get­Identifier­Map</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">A map view of the <a href="#getIdentifiers()">identifiers</a> collection
as (<var>authority</var>, <var>code</var>) entries.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="https://docs.oracle.com/en/java/javase/25/docs/api/java.base/java/util/Collection.html" title="class or interface in java.util" class="external-link">Collection</a><wbr>&lt;? extends <a href="https://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/metadata/Identifier.html" title="class or interface in org.opengis.metadata" class="external-link">Identifier</a>&gt;</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getIdentifiers()" class="member-name-link">get­Identifiers</a>()</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Returns all identifiers associated to this object.</div>
</div>
</div>
</div>
</div>
</section>
</li>
</ul>
</section>
<section class="details">
<ul class="details-list">
<!-- ============ METHOD DETAIL ========== -->
<li>
<section class="method-details" id="method-detail">
<h2>Method Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="getIdentifiers()">
<h3>getIdentifiers</h3>
<div class="horizontal-scroll">
<div class="member-signature"><span class="return-type"><a href="https://docs.oracle.com/en/java/javase/25/docs/api/java.base/java/util/Collection.html" title="class or interface in java.util" class="external-link">Collection</a>&lt;? extends <a href="https://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/metadata/Identifier.html" title="class or interface in org.opengis.metadata" class="external-link">Identifier</a>&gt;</span>&nbsp;<span class="element-name">getIdentifiers</span>()</div>
<div class="block">Returns all identifiers associated to this object. Each <a href="https://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/metadata/Identifier.html#getCode()" title="class or interface in org.opengis.metadata" class="external-link">identifier code</a> shall be unique in the <a href="https://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/metadata/Identifier.html#getAuthority()" title="class or interface in org.opengis.metadata" class="external-link">identifier
authority</a> name space. Examples of namespace are:
<ul>
<li><a href="../metadata/iso/citation/Citations.html#EPSG">EPSG</a> codes</li>
<li><cite>Universal Product Code</cite> (UPC)</li>
<li><cite>National Stock Number</cite> (NSN)</li>
<li><cite>International Standard Book Number</cite>
(<a href="../metadata/iso/citation/Citations.html#ISBN">ISBN</a>)</li>
<li><cite>International Standard Serial Number</cite>
(<a href="../metadata/iso/citation/Citations.html#ISSN">ISSN</a>)</li>
<li><cite>Universally Unique Identifier</cite> (<a href="https://docs.oracle.com/en/java/javase/25/docs/api/java.base/java/util/UUID.html" title="class or interface in java.util" class="external-link">UUID</a>)</li>
<li>XML <a href="IdentifierSpace.html#ID">ID</a> attribute</li>
<li><a href="XLink.html" title="class in org.apache.sis.xml">XLink</a> (<code>href</code>, <code>role</code>, <code>arcrole</code>, <code>title</code>,
<code>show</code> and <code>actuate</code> attributes)</li>
</ul>
Note that XML ID attribute are actually unique only in the scope of the XML document
being processed.</div>
<dl class="notes">
<dt>Returns:</dt>
<dd>all identifiers associated to this object, or an empty collection if none.</dd>
<dt>See Also:</dt>
<dd>
<ul class="tag-list-long">
<li><a href="../metadata/iso/citation/DefaultCitation.html#getIdentifiers()"><code>Default­Citation​.get­Identifiers()</code></a></li>
<li><a href="../metadata/iso/acquisition/DefaultObjective.html#getIdentifiers()"><code>Default­Objective​.get­Identifiers()</code></a></li>
<li><a href="../../../../../org.apache.sis.referencing/org/apache/sis/referencing/AbstractIdentifiedObject.html#getIdentifiers()"><code>Abstract­Identified­Object​.get­Identifiers()</code></a></li>
</ul>
</dd>
</dl>
</div>
</section>
</li>
<li>
<section class="detail" id="getIdentifierMap()">
<h3>getIdentifierMap</h3>
<div class="horizontal-scroll">
<div class="member-signature"><span class="return-type"><a href="IdentifierMap.html" title="interface in org.apache.sis.xml">IdentifierMap</a></span>&nbsp;<span class="element-name">getIdentifierMap</span>()</div>
<div class="block">A map view of the <a href="#getIdentifiers()">identifiers</a> collection
as (<var>authority</var>, <var>code</var>) entries.
Each <a href="https://docs.oracle.com/en/java/javase/25/docs/api/java.base/java/util/Map.Entry.html" title="class or interface in java.util" class="external-link">map entry</a> is associated
to an element from the above identifier collection in which the
<a href="https://docs.oracle.com/en/java/javase/25/docs/api/java.base/java/util/Map.Entry.html#getKey()" title="class or interface in java.util" class="external-link">key</a> is the
<a href="https://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/metadata/Identifier.html#getAuthority()" title="class or interface in org.opengis.metadata" class="external-link">identifier authority</a> and the
<a href="https://docs.oracle.com/en/java/javase/25/docs/api/java.base/java/util/Map.Entry.html#getValue()" title="class or interface in java.util" class="external-link">value</a> is the
<a href="https://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/metadata/Identifier.html#getCode()" title="class or interface in org.opengis.metadata" class="external-link">identifier code</a>.
<p>There is usually a one-to-one relationship between the map entries and the identifier
elements, but not always:</p>
<ul>
<li>The map view may contain less entries, because the map interface allows only one
entry per authority. If the <a href="#getIdentifiers()">identifier collection</a> contains
many identifiers for the same authority, then only the first occurrence is visible through
this <code>Map</code> view.</li>
<li>The map view may also contain more entries than the <a href="#getIdentifiers()">identifier collection</a>. For example, the <a href="https://www.geoapi.org/3.0/javadoc/org.opengis.geoapi/org/opengis/metadata/citation/Citation.html" title="class or interface in org.opengis.metadata.citation" class="external-link"><code>Citation</code></a>
interface defines separated attributes for ISBN, ISSN and other identifiers. This map
view may choose to unify all those attributes in a single view.</li>
</ul>
The map supports <a href="https://docs.oracle.com/en/java/javase/25/docs/api/java.base/java/util/Map.html#put(K,V)" title="class or interface in java.util" class="external-link"><code>put</code></a> operations
if and only if this <code>Identified­Object</code> is modifiable.</div>
<dl class="notes">
<dt>Returns:</dt>
<dd>the identifiers as a map of (<var>authority</var>, <var>code</var>) entries,
or an empty map if none.</dd>
</dl>
</div>
</section>
</li>
</ul>
</section>
</li>
</ul>
</section>
<!-- ========= END OF CLASS DATA ========= -->
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