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package com.sun.xml.internal.ws.api.server;

import com.sun.istack.internal.NotNull;
import com.sun.istack.internal.Nullable;

Callback interface to signal JAX-WS RI that the processing of an asynchronous request is complete.

The application is responsible for invoking one of the two defined methods to
indicate the result of the request processing.

Both methods will return immediately, and the JAX-WS RI will
send out an actual response at some later point.
Author:
Jitendra Kotamraju, Kohsuke Kawaguchi
See Also:
AsyncProvider
Since:
2.1/**
 * Callback interface to signal JAX-WS RI that the processing of an asynchronous request is complete.
 *
 * <p>
 * The application is responsible for invoking one of the two defined methods to
 * indicate the result of the request processing.
 *
 * <p>
 * Both methods will return immediately, and the JAX-WS RI will
 * send out an actual response at some later point.
 *
 * @author Jitendra Kotamraju
 * @author Kohsuke Kawaguchi
 * @since 2.1
 * @see AsyncProvider
 */
public interface AsyncProviderCallback<T> {
    
Indicates that a request was processed successfully.
Params:
response – 
     Represents an object to be sent back to the client
     as a response. To indicate one-way, response needs to be null/**
     * Indicates that a request was processed successfully.
     *
     * @param response
     *      Represents an object to be sent back to the client
     *      as a response. To indicate one-way, response needs to be null
     */
    void send(@Nullable T response);

    
Indicates that an error had occured while processing a request.
Params:
t – 
     The error is propagated to the client. For example, if this is
     a SOAP-based web service, the server will send back a SOAP fault./**
     * Indicates that an error had occured while processing a request.
     *
     * @param t
     *      The error is propagated to the client. For example, if this is
     *      a SOAP-based web service, the server will send back a SOAP fault.
     */
    void sendError(@NotNull Throwable t);
}