/*
 * 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.
 */
package org.apache.commons.chain2;

/**
 * A <code>Processing</code> encapsulates states that can be returned by
 * commands. 
 * <p>
 * {@link Command}s should either return <code>FINISHED</code> if the
 * processing of the given context has been completed, or return
 * <code>CONTINUE</code> if the processing of the given {@link Context} should
 * be delegated to a subsequent command in an enclosing {@link Chain}.
 *
 * @version $Id $
 */
public enum Processing {

    /**
     * Commands should return continue if the processing of the given 
     * context should be delegated to a subsequent command in an enclosing chain.
     *
     * @since Chain 2.0
     */
    CONTINUE,

    /**
     * Commands should return finished if the processing of the given context
     * has been completed.
     *
     * @since Chain 2.0
     */
    FINISHED;

}