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 * 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   *
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 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY       *
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package org.apache.james.onami.lifecycle;

/**
 * A {@link StageHandler} instance is used to track staging progresses.
 */
public interface StageHandler {

    /**
     * Tracks the input injectee successfully staged the resources.
     *
     * @param injectee the injectee to be staged
     */
    <I> void onSuccess(I injectee);

    /**
     * Tracks an error occurred while the input injectee staged the resources.
     *
     * @param injectee the injectee to be staged
     * @param error    the exception occurred
     */
    <I, E extends Throwable> void onError(I injectee, E error);

}
