org.mycore.backend.jpa.MCRURIConverter Maven / Gradle / Ivy
/*
* This file is part of *** M y C o R e ***
* See http://www.mycore.de/ for details.
*
* MyCoRe 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.
*
* MyCoRe 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 MyCoRe. If not, see .
*/
package org.mycore.backend.jpa;
import java.net.URI;
import java.util.Optional;
import javax.persistence.AttributeConverter;
import javax.persistence.Converter;
/**
* Converts a {@link URI} to {@link String} for JPA 2.1.
* @author Thomas Scheffler (yagee)
*/
@Converter
public class MCRURIConverter implements AttributeConverter {
@Override
public String convertToDatabaseColumn(URI attribute) {
return Optional.ofNullable(attribute)
.map(URI::toString)
.orElse(null);
}
@Override
public URI convertToEntityAttribute(String dbData) {
return Optional.ofNullable(dbData)
.map(URI::create)
.orElse(null);
}
}