/*
* Copyright 2011 Red Hat, Inc. and/or its affiliates.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
package org.infinispan.container.versioning;
import java.util.HashMap;
public class EntryVersionsMap extends HashMap<Object, IncrementableEntryVersion> {
public EntryVersionsMap merge(EntryVersionsMap updatedVersions) {
if (updatedVersions != null && !updatedVersions.isEmpty()) {
updatedVersions.putAll(this);
return updatedVersions;
} else {
return this;
}
}
}