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OWLAnnotationProperty.java
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OWLAnnotationProperty.java
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/**
* Copyright (C) 2022 Czech Technical University in Prague
*
* This program is free software: you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details. You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package cz.cvut.kbss.jopa.model.annotations;
import java.lang.annotation.*;
/**
* Marks an attribute mapped to an OWL annotation property.
* <p>
* This means that the attribute can contain a literal or a reference to another object.
*/
@Documented
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.FIELD)
public @interface OWLAnnotationProperty {
/**
* IRI of the annotation property
*
* @return IRI of the annotation property
*/
String iri();
/**
* (Optional) Whether the association should be lazily loaded or must be eagerly fetched.
*
* @return Fetch type of this property
*/
FetchType fetch() default FetchType.EAGER;
/**
* (Optional) Marks an attribute whose value is a lexical form of a literal value.
* <p>
* This parameter should be used on {@code String} attributes, as literal lexical form is always a string. Lexical
* form of a literal of any datatype can be loaded. Saving the lexical form is forbidden to prevent unintentional
* change of the data type, unless {@link #datatype()} is explicitly specified.
* <p>
* Note that if the value being loaded is an identifier, it will still be loaded, because it is not a literal and
* {@code String} is a valid identifier mapping type.
*/
boolean lexicalForm() default false;
/**
* (Optional) Whether the value should be stored as a <a href="https://www.w3.org/TR/rdf11-concepts/">simple
* literal</a>, i.e. {@code xsd:string}.
* <p>
* Note that if the value being loaded is an identifier, it will still be loaded, because it is not a literal and
* {@code String} is a valid identifier mapping type. However, updates will replace the original with a {@code
* xsd:string} value.
*
* @return Whether the mapped value is a simple literal
*/
boolean simpleLiteral() default false;
/**
* IRI of the datatype to use when storing values of this property.
* <p>
* If specified, the value of the attribute is treated as the lexical form of the literal (and should be a {@code String}).
*
* @return Datatype IRI
*/
String datatype() default "";
}