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package org.apache.velocity.context;

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */

import org.apache.velocity.app.event.EventCartridge;

/**
 *  Interface for event support.  Note that this is a public internal
 *  interface, as it is something that will be accessed from outside
 *  of the .context package.
 *
 *  @author Geir Magnusson Jr.
 *  @version $Id$
 */
public interface InternalEventContext
{
    /**
     * @param ec
     * @return The old EventCartridge.
     */
    EventCartridge attachEventCartridge(EventCartridge ec);

    /**
     * @return The current EventCartridge.
     */
    EventCartridge getEventCartridge();
}