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NamedResource.java
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NamedResource.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.ontodriver.model;
import java.io.Serializable;
import java.net.URI;
import java.util.Objects;
/**
* Represents named resources, i.e. resources identified by a URI.
*/
public class NamedResource implements Serializable {
private static final long serialVersionUID = 5932515448919851871L;
private final URI identifier;
NamedResource(URI uri) {
this.identifier = Objects.requireNonNull(uri);
}
/**
* Gets the identifier of this resource.
*
* @return URI
*/
public URI getIdentifier() {
return identifier;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + identifier.hashCode();
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
NamedResource other = (NamedResource) obj;
return identifier.equals(other.identifier);
}
@Override
public String toString() {
return identifier.toString();
}
/**
* Creates new named resource from the specified URI.
*
* @param uri Resource identifier
* @return NamedResource instance
*/
public static NamedResource create(URI uri) {
return new NamedResource(uri);
}
/**
* Creates new named resource from the specified string identifier.
*
* @param iri Resource identifier
* @return NamedResource instance
*/
public static NamedResource create(String iri) {
return new NamedResource(URI.create(iri));
}
}