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The AWS SDK for Java - Core module holds the classes that are used by the individual service clients to interact with Amazon Web Services. Users need to depend on aws-java-sdk artifact for accessing individual client classes.

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/*
 * Copyright 2011-2024 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *  http://aws.amazon.com/apache2.0
 *
 * or in the "license" file accompanying this file. This file 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.amazonaws.protocol.json.internal;

import com.amazonaws.annotation.SdkInternalApi;
import com.amazonaws.protocol.MarshallingInfo;

/**
 * Interface to marshall data according to the JSON protocol specification.
 *
 * @param  Type to marshall.
 */
@SdkInternalApi
public interface JsonMarshaller {

    JsonMarshaller NULL = new JsonMarshaller() {
        @Override
        public void marshall(Void val, JsonMarshallerContext context, MarshallingInfo marshallingInfo) {
        }
    };

    /**
     * Marshall the data into the request.
     *
     * @param val       Data to marshall (may be null).
     * @param context   Dependencies needed for marshalling.
     * @param marshallingInfo marshallingInfo. May be null in certain situations.
     */
    void marshall(T val, JsonMarshallerContext context, MarshallingInfo marshallingInfo);

}