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/*
 * Copyright 2002-2006,2009 The Apache Software Foundation.
 * 
 * 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 com.opensymphony.xwork2;

import com.opensymphony.xwork2.config.entities.ActionConfig;

import java.util.List;

/**
 * An unknown handler manager contains a list of UnknownHandler and iterates on them by order
 *
 * @see com.opensymphony.xwork2.DefaultUnknownHandlerManager
 */
public interface UnknownHandlerManager {

    Result handleUnknownResult(ActionContext actionContext, String actionName, ActionConfig actionConfig, String resultCode);

    /**
     * Tries to handle passed methodName if cannot find method should re
     *
     * @param action Action's instance
     * @param methodName method name to handle
     * @return Result representing result of given action method
     * @throws NoSuchMethodException if method can be handled by defined UnknownHandlers
     */
    Object handleUnknownMethod(Object action, String methodName) throws NoSuchMethodException;

    ActionConfig handleUnknownAction(String namespace, String actionName);

    boolean hasUnknownHandlers();

    List getUnknownHandlers();

}