libraries/eventsourcing/src/main/java/org/apache/zest/library/eventsourcing/domain/replay/DomainEventPlayer.java

/**
 *
 * Copyright 2009-2010 Rickard Öberg AB
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.zest.library.eventsourcing.domain.replay;

import org.apache.zest.library.eventsourcing.domain.api.DomainEventValue;
import org.apache.zest.library.eventsourcing.domain.api.UnitOfWorkDomainEventsValue;

/**
 * Service that can replay transactions and individual domain events.
 */
public interface DomainEventPlayer
{
    public void playTransaction( UnitOfWorkDomainEventsValue unitOfWorkDomainValue )
            throws EventReplayException;

    /**
     * Invoke a domain event on a particular object. The object could
     * be the original object, but could also be a service that wants
     * to be invoked to handle the event.
     *
     * @param domainEventValue Domain event value
     * @param object target
     * @throws EventReplayException if unable to play event
     */
    public void playEvent( DomainEventValue domainEventValue, Object object )
            throws EventReplayException;
}