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OneLevelCascadeExplorer.java
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OneLevelCascadeExplorer.java
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/**
* Copyright (C) 2019 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;
import cz.cvut.kbss.jopa.exceptions.OWLPersistenceException;
import cz.cvut.kbss.jopa.model.annotations.CascadeType;
import cz.cvut.kbss.jopa.model.metamodel.Attribute;
import cz.cvut.kbss.jopa.model.metamodel.EntityType;
import java.util.Arrays;
import java.util.List;
public abstract class OneLevelCascadeExplorer {
protected CascadeType ct;
public void start(final AbstractEntityManager pc, final Object o, CascadeType ct) {
this.ct = ct;
final EntityType<?> a = pc.getMetamodel().entity(o.getClass());
for (final Attribute<?, ?> at : a.getAttributes()) {
final List<CascadeType> cTypes = Arrays.asList(at.getCascadeTypes());
try {
if (!cTypes.contains(CascadeType.ALL) && !cTypes.contains(this.ct)) {
exploreNonCascaded(at, o);
} else {
exploreCascaded(at, o);
}
} catch (Exception e) {
throw new OWLPersistenceException(e);
}
}
}
protected void exploreCascaded(final Attribute<?, ?> at, final Object o) {
// empty body
}
protected void exploreNonCascaded(final Attribute<?, ?> at, final Object o) throws IllegalAccessException {
// empty body
}
}