org.mycore.datamodel.metadata.share.MCRMetadataShareAgent 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.datamodel.metadata.share;
import org.mycore.access.MCRAccessException;
import org.mycore.common.MCRPersistenceException;
import org.mycore.datamodel.metadata.MCRObject;
/**
* @author Thomas Scheffler (yagee)
* @see MCRMetadataShareAgentFactory
*/
public interface MCRMetadataShareAgent {
/**
* Determines if shareable metadata changed from oldVersion
to newVersion
* @param oldVersion previous version of MCRObject
* @param newVersion new version of MCRObject
*/
boolean shareableMetadataChanged(MCRObject oldVersion, MCRObject newVersion);
/**
* updates all recipients of shareable metadata from holder
.
* @param holder usually the parent object that can distrivute metadata
* @throws MCRAccessException
* @throws MCRPersistenceException
*/
void distributeMetadata(MCRObject holder) throws MCRPersistenceException, MCRAccessException;
/**
* Include shareable metadata from holder
before persisting recipient
.
* @param recipient on update/create before handling events.
*/
void receiveMetadata(MCRObject recipient);
}