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/*
* Copyright 2011- Per Wendel
*
*  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 spark;

/**
 * A ResponseTransformer holds the implementation of the 'render' method.
 *
 * @author alex
 */
@FunctionalInterface
public interface ResponseTransformer {

    /**
     * Method called for rendering the output.
     *
     * @param model object used to render output.
     * @return message that it is sent to client.
     * @throws java.lang.Exception when render fails
     */
    String render(Object model) throws Exception;

}