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PersistenceUnitUtil.java
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PersistenceUnitUtil.java
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/**
* Copyright (C) 2016 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;
public interface PersistenceUnitUtil {
public boolean isLoaded(Object entity, String attributeName);
public boolean isLoaded(Object entity);
/**
* Return the id of the entity. A generated id is not guaranteed to be
* available until after the database insert has occurred. Returns null if
* the entity does not yet have an id.
*
* @param entity
* entity instance
* @return id of the entity
* @throws IllegalArgumentException
* if the object is found not to be an entity
*/
public Object getIdentifier(Object entity);
}