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ChangeRecord.java
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ChangeRecord.java
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/**
* Copyright (C) 2020 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.sessions;
import cz.cvut.kbss.jopa.model.metamodel.FieldSpecification;
/**
* Objects of classes implementing this interface represent a change of one attribute of an entity class. Objects store
* only the new value, old value is in the original and it is not needed.
*/
public interface ChangeRecord {
/**
* Returns the new value of the attribute.
*
* @return Object
*/
Object getNewValue();
/**
* Gets the attribute to which this change record is bound.
*
* @return the attribute
*/
FieldSpecification<?, ?> getAttribute();
/**
* Whether this change record prevents caching of the instance on which the change is applied.
*
* @return Whether this change record prevents caching
*/
boolean doesPreventCaching();
/**
* Marks this change record to prevent caching.
*
* @see #doesPreventCaching()
*/
void preventCaching();
}