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package javax.ws.rs.client;
/**
* Callback that can be implemented to receive the asynchronous processing
* events from the invocation processing.
*
* @param response type. It can be either a general-purpose
* {@link javax.ws.rs.core.Response} or the anticipated response entity
* type.
* @author Marek Potociar
* @since 2.0
*/
public interface InvocationCallback {
/**
* Called when the invocation was successfully completed. Note that this does
* not necessarily mean the response has bean fully read, which depends on the
* parameterized invocation callback response type.
*
* Once this invocation callback method returns, the underlying {@link javax.ws.rs.core.Response}
* instance will be automatically closed by the runtime.
*
*
* @param response response data.
*/
public void completed(RESPONSE response);
/**
* Called when the invocation has failed for any reason.
*
* Note that the provided {@link Throwable} may be a {@link javax.ws.rs.ProcessingException} in case the
* invocation processing failure has been caused by a client-side runtime component error.
* The {@code Throwable} may also be a {@link javax.ws.rs.WebApplicationException} or one
* of its subclasses in case the response status code is not
* {@link javax.ws.rs.core.Response.Status.Family#SUCCESSFUL successful} and the generic
* callback type is not {@link javax.ws.rs.core.Response}.
* In case a processing of a properly received response fails, the wrapped processing exception
* will be of {@link ResponseProcessingException} type and will contain the {@link javax.ws.rs.core.Response}
* instance whose processing has failed.
* A {@link java.util.concurrent.CancellationException} would be indicate that the invocation
* has been cancelled.
* An {@link InterruptedException} would indicate that the thread executing the invocation has
* been interrupted.
*
*
* Once this invocation callback method returns, the underlying {@link javax.ws.rs.core.Response}
* instance will be automatically closed by the runtime.
*
*
* @param throwable contains failure details.
*/
public void failed(Throwable throwable);
}