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JAX-WS Runtime with module descriptor
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package com.sun.xml.ws.api.message;

import java.io.IOException;
import java.io.OutputStream;

import javax.xml.ws.soap.MTOMFeature;

import com.oracle.webservices.api.message.ContentType;

/**
 * A Message implementation may implement this interface as an alternative way to write the
 * message into the OutputStream.
 * 
 * @author [email protected]
 */
public interface MessageWritable {
    
    /**
     * Gets the Content-type of this message.
     * 
     * @return The MIME content type of this message
     */
    ContentType getContentType();

    /**
     * Writes the XML infoset portion of this MessageContext
     * (from <soap:Envelope> to </soap:Envelope>).
     *
     * @param out
     *      Must not be null. The caller is responsible for closing the stream,
     *      not the callee.
     *
     * @return
     *      The MIME content type of this message (such as "application/xml").
     *      This information is often ncessary by transport.
     *
     * @throws IOException
     *      if a {@link OutputStream} throws {@link IOException}.
     */
    ContentType writeTo( OutputStream out ) throws IOException;

    /**
     * Passes configuration information to this message to ensure the proper
     * wire format is created. (from <soap:Envelope> to </soap:Envelope>).
     * 
     * @param mtomFeature
     *            The standard WebServicesFeature for specifying
     *            the MTOM enablement and possibly threshold for the endpoint.
     *            This value may be null.
     */
    void setMTOMConfiguration(final MTOMFeature mtomFeature);
}